{"product_id":"ohaus-guardian-5000-dry-synthesis-kit","title":"OHAUS Guardian™ 5000 Dry Synthesis Kits – e-G52HSRDA Hotplate Stirrer with Aluminum Flask Block","description":"\u003ch2\u003eOHAUS Guardian™ 5000 Dry Synthesis Kits – e-G52HSRDA Hotplate Stirrer with Aluminum Flask Block\u003c\/h2\u003e\n\u003cp\u003eOHAUS Guardian 5000 Dry Synthesis Kits combine the e-G52HSRDA round-top hotplate stirrer with an anodized aluminum block sized for round-bottom flasks. They include a PT1000 temperature probe, probe holder and flask clamp. The block transfers heat from the 135 mm hotplate into the flask, so you can heat and stir reactions without an oil bath or heating mantle. There's no hot oil to spill, clean up or dispose of.\u003c\/p\u003e\n\u003cp\u003eThree kits are available, sized for 250 mL (Kit 2A), 500 mL (Kit 2B) or 1000 mL (Kit 2C) flasks. All run on 120 V. They're used in chemistry and synthesis labs, pharmaceutical and materials research, and universities and colleges. Guardian 5000 synthesis kits are available in Canada from Cambridge Environmental Products with CAD pricing and Canadian purchasing support.\u003c\/p\u003e\n\u003cdiv style=\"border: 1px solid #d9d9d9; padding: 18px; margin: 24px 0; border-radius: 8px; background: #f8f8f8;\"\u003e\n\u003ch3 style=\"font-size: 18px; line-height: 1.35; margin-top: 0;\"\u003eIdeal For\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOrganic and inorganic synthesis\u003c\/strong\u003e: heating and stirring reactions in round-bottom flasks\u003c\/li\u003e\n\u003cli\u003eLabs \u003cstrong\u003ereplacing oil baths\u003c\/strong\u003e to reduce spill, fire and disposal risks\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReflux and long-run reactions\u003c\/strong\u003e using probe control and the built-in timer\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003ePharmaceutical, materials and academic research labs\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTeaching labs\u003c\/strong\u003e in universities and colleges\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003ch2\u003eWhy Choose a Guardian 5000 Synthesis Kit?\u003c\/h2\u003e\n\u003ch3 style=\"font-size: 18px; line-height: 1.35;\"\u003eDry heating without an oil bath\u003c\/h3\u003e\n\u003cp\u003eThe anodized aluminum block (6082 T651 alloy) conducts heat from the hotplate into the flask. There's no oil to heat up, spill or dispose of, and no water bath to top up. The anodized finish is chemical and solvent resistant.\u003c\/p\u003e\n\u003ch3 style=\"font-size: 18px; line-height: 1.35;\"\u003ePrecise probe control\u003c\/h3\u003e\n\u003cp\u003eThe kit includes a stainless steel PT1000 Class A probe. With the probe placed in the reaction, the hotplate controls to the sample temperature rather than the plate temperature, in 0.5 °C steps. OHAUS lists probe accuracy of ±0.2 °C plus the PT1000 Class A tolerance.\u003c\/p\u003e\n\u003ch3 style=\"font-size: 18px; line-height: 1.35;\"\u003eStrong, steady stirring\u003c\/h3\u003e\n\u003cp\u003eThe e-G52HSRDA stirs from 50 to 1800 rpm with ±2% speed stability and handles up to 20 L of water. That's more than enough for a 1 L flask.\u003c\/p\u003e\n\u003ch3 style=\"font-size: 18px; line-height: 1.35;\"\u003eBuilt-in safety features\u003c\/h3\u003e\n\u003cp\u003eSafetyHeat™ uses two independent controls to monitor the electronics and shut off heating before overtemperature. Run Dry Protection stops heating and sounds an alarm if the probe isn't in the sample during probe-controlled heating. The hotplate also has a hot-top indicator, an audible alarm and an IP32-rated metal housing.\u003c\/p\u003e\n\u003ch3 style=\"font-size: 18px; line-height: 1.35;\"\u003eTimer and data output\u003c\/h3\u003e\n\u003cp\u003eA timer runs from 1 minute to 99 h 59 min for unattended runs. The built-in RS232 port lets you log data or control the unit remotely.\u003c\/p\u003e\n\u003ch2\u003eAvailable Kits\u003c\/h2\u003e\n\u003cp\u003eChoose the \u003cstrong\u003eKit\u003c\/strong\u003e by the largest round-bottom flask you'll use. Each kit includes the hotplate stirrer, one base block, the PT1000 probe, the probe holder and a flask clamp.\u003c\/p\u003e\n\u003cdiv style=\"overflow-x: auto;\"\u003e\n\u003ctable style=\"width: 108.708%; border-collapse: collapse; margin-top: 12px;\" height=\"172\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background: #f2f2f2;\"\u003e\n\u003cth style=\"border: 1px solid rgb(221, 221, 221); padding: 10px; text-align: left; width: 8.69002%;\"\u003eKit\u003c\/th\u003e\n\u003cth style=\"border: 1px solid rgb(221, 221, 221); padding: 10px; text-align: left; width: 18.717%;\"\u003eModel\u003c\/th\u003e\n\u003cth style=\"border: 1px solid rgb(221, 221, 221); padding: 10px; text-align: left; width: 15.642%;\"\u003eOHAUS Item\u003c\/th\u003e\n\u003cth style=\"border: 1px solid rgb(221, 221, 221); padding: 10px; text-align: left; width: 17.38%;\"\u003eBase Block for\u003c\/th\u003e\n\u003cth style=\"border: 1px solid rgb(221, 221, 221); padding: 10px; text-align: left; width: 22.8614%;\"\u003eMax Flask Diameter\u003c\/th\u003e\n\u003cth style=\"border: 1px solid rgb(221, 221, 221); padding: 10px; text-align: left; width: 16.5779%;\"\u003eBlock Weight\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid rgb(221, 221, 221); padding: 10px; width: 8.69002%;\"\u003eKit 2A\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid rgb(221, 221, 221); padding: 10px; width: 18.717%;\"\u003eG52HSRDA K-2A \u003c\/td\u003e\n\u003ctd style=\"border: 1px solid rgb(221, 221, 221); padding: 10px; width: 15.642%;\"\u003e31076459\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid rgb(221, 221, 221); padding: 10px; width: 17.38%;\"\u003e250 mL flask\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid rgb(221, 221, 221); padding: 10px; width: 22.8614%;\"\u003e85.4 mm\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid rgb(221, 221, 221); padding: 10px; width: 16.5779%;\"\u003e1.51 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid rgb(221, 221, 221); padding: 10px; width: 8.69002%;\"\u003eKit 2B\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid rgb(221, 221, 221); padding: 10px; width: 18.717%;\"\u003eG52HSRDA K-2B\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid rgb(221, 221, 221); padding: 10px; width: 15.642%;\"\u003e31076460\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid rgb(221, 221, 221); padding: 10px; width: 17.38%;\"\u003e500 mL flask\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid rgb(221, 221, 221); padding: 10px; width: 22.8614%;\"\u003e105.5 mm\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid rgb(221, 221, 221); padding: 10px; width: 16.5779%;\"\u003e2.05 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid rgb(221, 221, 221); padding: 10px; width: 8.69002%;\"\u003eKit 2C\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid rgb(221, 221, 221); padding: 10px; width: 18.717%;\"\u003eG52HSRDA K-2C\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid rgb(221, 221, 221); padding: 10px; width: 15.642%;\"\u003e31076461\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid rgb(221, 221, 221); padding: 10px; width: 17.38%;\"\u003e1000 mL flask\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid rgb(221, 221, 221); padding: 10px; width: 22.8614%;\"\u003e131.3 mm\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid rgb(221, 221, 221); padding: 10px; width: 16.5779%;\"\u003e2.22 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003ch2\u003eWhat's in the Box\u003c\/h2\u003e\n\u003cdiv style=\"overflow-x: auto;\"\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; margin-top: 12px;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background: #f2f2f2;\"\u003e\n\u003cth style=\"border: 1px solid #ddd; padding: 10px; text-align: left;\"\u003eItem\u003c\/th\u003e\n\u003cth style=\"border: 1px solid #ddd; padding: 10px; text-align: left;\"\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 10px;\"\u003eHotplate stirrer\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 10px;\"\u003eOHAUS Guardian 5000 e-G52HSRDA, 120 V, 135 mm round ceramic-coated aluminum top plate\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 10px;\"\u003eBase block\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 10px;\"\u003eAnodized 6082 T651 aluminum alloy with two heat-resistant handles, sized for 250, 500 or 1000 mL (depending on kit)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 10px;\"\u003eTemperature probe\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 10px;\"\u003eStainless steel PT1000 Class A (OHAUS 30500590), −40 °C to 400 °C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 10px;\"\u003eProbe holder\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 10px;\"\u003eStand rod, double clamp and probe-holding arm (OHAUS 30973298)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 10px;\"\u003eFlask clamp\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 10px;\"\u003eStainless steel, 9.5–50 mm grip range, with attached double clamp\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003ch2\u003eWhich Kit Should I Choose?\u003c\/h2\u003e\n\u003cdiv style=\"border: 1px solid #d9d9d9; padding: 18px; margin: 24px 0; border-radius: 8px; background: #f8f8f8;\"\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eKit 2A (250 mL):\u003c\/strong\u003e small-scale synthesis and method development.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eKit 2B (500 mL):\u003c\/strong\u003e mid-scale reactions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eKit 2C (1000 mL):\u003c\/strong\u003e larger reactions up to 1 L.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUsing smaller flasks too?\u003c\/strong\u003e OHAUS makes insert blocks that fit inside the base block for smaller flasks, down to 25 mL. The 2A takes 25 to 100 mL inserts, the 2B takes 25 to 250 mL and the 2C takes 25 to 500 mL. Inserts are sold separately. Contact Cambridge for pricing.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003ch2\u003eCommon Applications\u003c\/h2\u003e\n\u003cdiv style=\"overflow-x: auto;\"\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; margin-top: 12px;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background: #f2f2f2;\"\u003e\n\u003cth style=\"border: 1px solid #ddd; padding: 10px; text-align: left;\"\u003eApplication\u003c\/th\u003e\n\u003cth style=\"border: 1px solid #ddd; padding: 10px; text-align: left;\"\u003eHow the Kit Helps\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 10px;\"\u003eSynthesis and reflux\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 10px;\"\u003eProbe-controlled heating and stirring in round-bottom flasks without an oil bath.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 10px;\"\u003eReplacing oil baths\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 10px;\"\u003eNo hot oil to spill, ignite or dispose of; the block cleans easily.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 10px;\"\u003eLong or overnight runs\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 10px;\"\u003eTimer, SafetyHeat and Run Dry Protection for unattended operation.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 10px;\"\u003eData logging\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 10px;\"\u003eRS232 output for recording temperature and run conditions.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ch3 style=\"font-size: 18px; line-height: 1.35;\"\u003eHotplate stirrer (e-G52HSRDA)\u003c\/h3\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; margin-top: 12px;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 10px; width: 40%;\"\u003e\u003cstrong\u003eTop plate\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 10px;\"\u003eØ 135 mm (5.3 in), ceramic-coated aluminum, round\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 10px; width: 40%;\"\u003e\u003cstrong\u003eHeating power\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 10px;\"\u003e600 W (120 V)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 10px; width: 40%;\"\u003e\u003cstrong\u003ePlate temperature range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 10px;\"\u003eAmbient +5 °C to 360 °C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 10px; width: 40%;\"\u003e\u003cstrong\u003eSetting resolution\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 10px;\"\u003e0.5 °C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 10px; width: 40%;\"\u003e\u003cstrong\u003eExternal probe\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 10px;\"\u003ePT100 or PT1000 Class A; accuracy ±0.2 °C + probe Class A tolerance\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 10px; width: 40%;\"\u003e\u003cstrong\u003eSpeed range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 10px;\"\u003e50–1800 rpm, ±2% stability\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 10px; width: 40%;\"\u003e\u003cstrong\u003eMax stirring volume\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 10px;\"\u003e20 L (water)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 10px; width: 40%;\"\u003e\u003cstrong\u003eTimer\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 10px;\"\u003e1 min to 99 h 59 min\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 10px; width: 40%;\"\u003e\u003cstrong\u003eDisplay\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 10px;\"\u003eBacklit LCD, 115 × 30 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 10px; width: 40%;\"\u003e\u003cstrong\u003eInterface\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 10px;\"\u003eRS232 (USB and Ethernet kits optional)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 10px; width: 40%;\"\u003e\u003cstrong\u003eProtection\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 10px;\"\u003eIP32\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 10px; width: 40%;\"\u003e\u003cstrong\u003eDimensions (L × W × H)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 10px;\"\u003e259 × 175 × 108 mm (10.2 × 6.9 × 4.3 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 10px; width: 40%;\"\u003e\u003cstrong\u003eNet weight (hotplate)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 10px;\"\u003e2.6 kg (5.7 lb)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 10px; width: 40%;\"\u003e\u003cstrong\u003ePower\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 10px;\"\u003e100–120 V, 8 A, 50\/60 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 10px; width: 40%;\"\u003e\u003cstrong\u003eOperating environment\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 10px;\"\u003e5–40 °C, up to 80% RH, non-condensing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 10px; width: 40%;\"\u003e\u003cstrong\u003eSafety standards\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 10px;\"\u003eOHAUS lists UL 61010 series and CAN\/CSA C22.2 among the standards for the Guardian 5000 series\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3 style=\"font-size: 18px; line-height: 1.35;\"\u003eBase blocks\u003c\/h3\u003e\n\u003cdiv style=\"overflow-x: auto;\"\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; margin-top: 12px;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background: #f2f2f2;\"\u003e\n\u003cth style=\"border: 1px solid #ddd; padding: 10px; text-align: left;\"\u003e\u003c\/th\u003e\n\u003cth style=\"border: 1px solid #ddd; padding: 10px; text-align: left;\"\u003eKit 2A (250 mL)\u003c\/th\u003e\n\u003cth style=\"border: 1px solid #ddd; padding: 10px; text-align: left;\"\u003eKit 2B (500 mL)\u003c\/th\u003e\n\u003cth style=\"border: 1px solid #ddd; padding: 10px; text-align: left;\"\u003eKit 2C (1000 mL)\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 10px;\"\u003eDiameter without handles\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 10px;\"\u003e121.6 mm\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 10px;\"\u003e141.4 mm\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 10px;\"\u003e162.3 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 10px;\"\u003eDiameter with handles\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 10px;\"\u003e225 mm\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 10px;\"\u003e245 mm\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 10px;\"\u003e265 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 10px;\"\u003eHeight\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 10px;\"\u003e44.2 mm\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 10px;\"\u003e54.6 mm\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 10px;\"\u003e65.5 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 10px;\"\u003eRecess depth\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 10px;\"\u003e36.8 mm\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 10px;\"\u003e46.7 mm\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 10px;\"\u003e62.2 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 10px;\"\u003eMax flask diameter\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 10px;\"\u003e85.4 mm\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 10px;\"\u003e105.5 mm\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 10px;\"\u003e131.3 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 10px;\"\u003eWeight\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 10px;\"\u003e1.51 kg\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 10px;\"\u003e2.05 kg\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 10px;\"\u003e2.22 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 10px;\"\u003eMax working temperature\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 10px;\"\u003e300 °C\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 10px;\"\u003e300 °C\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 10px;\"\u003e300 °C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cem\u003eHotplate specifications are from the OHAUS Guardian 5000 e-G52 data sheet. Base block and kit contents are from OHAUS synthesis kit information published by OHAUS distributors. Contact Cambridge for the OHAUS kit data sheet.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch2\u003eSelection \u0026amp; Handling Notes\u003c\/h2\u003e\n\u003cdiv style=\"border: 1px solid #d9d9d9; padding: 18px; margin: 24px 0; border-radius: 8px; background: #fff8e5;\"\u003e\n\u003cul style=\"margin: 0;\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eBlock limit is 300 °C.\u003c\/strong\u003e The hotplate can reach 360 °C, but the aluminum blocks are rated to 300 °C. Set the plate safety limit accordingly.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUse the probe for reaction temperature.\u003c\/strong\u003e Without the probe, the hotplate controls the plate, not the flask, and the flask will run cooler than the setpoint.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBlocks and handles get hot.\u003c\/strong\u003e Let the block cool before handling, or use heat-resistant gloves. Watch for the hot-top indicator.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMatch the flask to the block.\u003c\/strong\u003e Use a flask that sits fully in the recess for good heat transfer, or use an insert for smaller flasks.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e120 V models.\u003c\/strong\u003e These kits are for 100–120 V North American power.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003ch2\u003eProduct Documents\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/ohaus.ca\/product\/pdf\/Datasheet_e-G52_EN_US.pdf\" rel=\"noopener\" target=\"_blank\"\u003eOHAUS Guardian 5000 e-G52 Hotplate Stirrer Data Sheet (PDF)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/ohaus.ca\/product\/pdf\/G52_instructional_Manual.pdf\" rel=\"noopener\" target=\"_blank\"\u003eOHAUS Guardian 5000 e-G52 Instruction Manual (PDF)\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eCanadian Purchasing Support\u003c\/h2\u003e\n\u003cp\u003eCambridge Environmental Products is a Canadian-owned laboratory supply distributor based in Ontario and has served Canadian labs since 1993. We supply OHAUS Guardian 5000 hotplate stirrers and synthesis kits with CAD pricing and shipping across Canada. We work with chemistry and research laboratories, pharmaceutical and materials labs, and universities and colleges, and can help with quotes and choosing the right kit. Browse our \u003ca href=\"\/fr\/collections\/lab-equipment-collection\"\u003elab equipment\u003c\/a\u003e collection for more.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3 style=\"font-size: 18px; line-height: 1.35;\"\u003eWhat is a dry synthesis kit?\u003c\/h3\u003e\n\u003cp\u003eIt's a hotplate stirrer paired with a solid aluminum block that holds a round-bottom flask. The block heats the flask directly, replacing an oil bath or heating mantle.\u003c\/p\u003e\n\u003ch3 style=\"font-size: 18px; line-height: 1.35;\"\u003eWhat's the difference between Kit 2A, 2B and 2C?\u003c\/h3\u003e\n\u003cp\u003eOnly the base block size: 2A fits a 250 mL flask, 2B a 500 mL flask and 2C a 1000 mL flask. The hotplate, probe, probe holder and flask clamp are the same.\u003c\/p\u003e\n\u003ch3 style=\"font-size: 18px; line-height: 1.35;\"\u003eCan I use smaller flasks?\u003c\/h3\u003e\n\u003cp\u003eYes, with insert blocks that fit inside the base block, down to 25 mL. Inserts are sold separately. Contact Cambridge for options and pricing.\u003c\/p\u003e\n\u003ch3 style=\"font-size: 18px; line-height: 1.35;\"\u003eWhat's the maximum temperature?\u003c\/h3\u003e\n\u003cp\u003eThe hotplate goes up to 360 °C, but the aluminum blocks are rated to 300 °C working temperature.\u003c\/p\u003e\n\u003ch3 style=\"font-size: 18px; line-height: 1.35;\"\u003eIs a temperature probe included?\u003c\/h3\u003e\n\u003cp\u003eYes. Each kit includes a stainless steel PT1000 Class A probe (−40 °C to 400 °C) and a probe holder.\u003c\/p\u003e\n\u003ch3 style=\"font-size: 18px; line-height: 1.35;\"\u003eCan I use the hotplate on its own?\u003c\/h3\u003e\n\u003cp\u003eYes. Remove the block and use the e-G52HSRDA as a standard 135 mm round-top hotplate stirrer.\u003c\/p\u003e\n\u003ch3 style=\"font-size: 18px; line-height: 1.35;\"\u003eAre these kits available in Canada?\u003c\/h3\u003e\n\u003cp\u003eYes. Cambridge Environmental Products supplies OHAUS Guardian 5000 synthesis kits across Canada with CAD pricing.\u003c\/p\u003e\n\u003cdiv style=\"border: 1px solid #d9d9d9; padding: 18px; margin: 24px 0; border-radius: 8px; background: #f8f8f8;\"\u003e\n\u003ch3 style=\"font-size: 18px; line-height: 1.35; margin-top: 0;\"\u003eNeed Help Choosing a Synthesis Kit?\u003c\/h3\u003e\n\u003cp\u003eTell us:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eThe flask sizes you use\u003c\/li\u003e\n\u003cli\u003eYour typical reaction temperatures\u003c\/li\u003e\n\u003cli\u003eWhether you need inserts for smaller flasks\u003c\/li\u003e\n\u003cli\u003eWhether you need data logging (RS232, USB or Ethernet)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eWe'll recommend the right kit and accessories.\u003c\/p\u003e\n\u003ca href=\"\/fr\/pages\/contact\" style=\"display: inline-block; padding: 12px 18px; background: #1f4e79; color: #ffffff; text-decoration: none; border-radius: 5px; font-weight: bold;\"\u003e Contact Cambridge for Product Support \u003c\/a\u003e\n\u003c\/div\u003e","brand":"Ohaus","offers":[{"title":"Kit 2A (250 mL)","offer_id":50025493037315,"sku":"G52HSRDA K-2A","price":2236.25,"currency_code":"CAD","in_stock":true},{"title":"Kit 2B (500 mL)","offer_id":50025493070083,"sku":"G52HSRDA K-2B","price":2177.24,"currency_code":"CAD","in_stock":true},{"title":"Kit 2C (1000 mL)","offer_id":50025493102851,"sku":"G52HSRDA K-2C","price":2312.65,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2006\/8997\/files\/e-G52HSRDA-Synthesis-Kit2B-500mL-Right.jpg?v=1793107818","url":"https:\/\/cambridgeenviro.com\/fr\/products\/ohaus-guardian-5000-dry-synthesis-kit","provider":"Cambridge Environmental Products, Inc.","version":"1.0","type":"link"}