Expand the capabilities of your OHAUS Guardian™ 5000 hotplate, magnetic stirrer, or hotplate stirrer with genuine OHAUS accessories for temperature control, probe mounting, vessel support, splash protection, connectivity, and laboratory setup.
This combined accessory listing includes PT100 and PT1000 temperature probes, probe holders, RS232 interface kits, splash shields, vessel clamps, support kits, and specialty clamps for compatible Guardian 5000 configurations.
Because compatibility varies by Guardian 5000 model and accessory type, use the tables below to select the correct part number before ordering.
| Part Number | Accessory | Category | Primary Use |
| 30304101 | RS232-to-USB Interface Kit | Connectivity | Connect a compatible Guardian 5000 RS232 port to a USB-equipped computer or compatible system. |
| 30304102 | RS232-to-Ethernet Interface Kit | Connectivity | Adds Ethernet connectivity for compatible remote-control or data-logging workflows. |
| 30500590 | PT1000(A) Probe, 20 cm, SS316/304, -40 to 400°C | Temperature Probe | Direct sample-temperature measurement and control on compatible heating models. |
| 30500591 | PT1000(A) Probe, 20 cm, PTFE, -40 to 200°C | Temperature Probe | PTFE-covered temperature probe for applications requiring a different wetted material than stainless steel. |
| 30500592 | PT1000(A) Probe, 25 cm, SS316/304, -40 to 400°C | Temperature Probe | Longer stainless-steel probe for deeper vessels or applications requiring additional immersion length. |
| 30500593 | PT1000(A) Probe, 25 cm, PTFE, -40 to 200°C | Temperature Probe | Longer PTFE probe option for compatible sample-temperature monitoring. |
| 30973654 | PT100(A) Probe, 25 cm, SS316/304, -40 to 400°C | Temperature Probe | Stainless-steel PT100 temperature probe for compatible OHAUS applications. |
| 30973655 | PT1000(A) Probe, 25 cm, Hastelloy, -40 to 400°C | Temperature Probe | Hastelloy probe option for applications where that wetted material is preferred. |
| 30973298 | Probe Holder Kit-1 | Probe Support | Positions a compatible temperature probe in the sample during heating. |
| 30400146 | Support Rod & Clamp Kit | Support Hardware | Provides support hardware for holding temperature probes, thermometers, or other laboratory glassware above the hotplate or stirrer. |
| 30400145 | Ultra Flex Support Kit | Support Hardware | Flexible support arrangement for compatible laboratory accessories and positioning needs. |
| 30500597 | Vessel Clamp | Vessel Support | Helps secure compatible vessels during heating or stirring applications. |
| 30392195 | Clamp Holder CLC-CLMPHA | Clamp Hardware | Clamp-holder component for compatible OHAUS laboratory support systems. |
| 30392233 | Specialty Rod Clamp CLS-RODS | Clamp Hardware | Specialty support clamp for rod-based laboratory mounting systems. |
A compatible temperature probe allows supported Guardian 5000 heating models to monitor and control based on the actual sample temperature rather than relying only on the top-plate temperature.
| Part Number | Probe Type | Length | Material | Temperature Range |
| 30500590 | PT1000(A) | 20 cm | SS316/304 | -40 to 400°C |
| 30500591 | PT1000(A) | 20 cm | PTFE | -40 to 200°C |
| 30500592 | PT1000(A) | 25 cm | SS316/304 | -40 to 400°C |
| 30500593 | PT1000(A) | 25 cm | PTFE | -40 to 200°C |
| 30973654 | PT100(A) | 25 cm | SS316/304 | -40 to 400°C |
| 30973655 | PT1000(A) | 25 cm | Hastelloy | -40 to 400°C |
Probe selection should be based on the required temperature range, immersion depth, sample chemistry, wetted material, and compatibility with your Guardian 5000 model.
Stainless steel, PTFE, and Hastelloy probes are not interchangeable from a chemical-compatibility perspective. Confirm suitability for your sample before ordering.
OHAUS offers model-specific splash shields to help provide additional protection around the work area during compatible heating and stirring applications.
| Part Number | Description | Guardian 5000 Fit |
| 30910731 | Splash Shield for e-G52XX07C | 7 x 7 in Guardian 5000 configurations |
| 30910732 | Splash Shield for e-G52HS10C | 10 x 10 in e-G52HS10C |
| 30910733 | Splash Shield for e-G52HSRDA | 5.3 in round e-G52HSRDA |
Splash shields are plate-size specific. Confirm your Guardian 5000 model before ordering.
Designed to hold a compatible temperature probe in position during sample-temperature monitoring and control.
Provides a laboratory support arrangement for holding temperature probes, thermometers, and other compatible glassware or accessories above the hotplate or stirrer.
Provides a more flexible mounting option for compatible laboratory support applications where adjustable positioning is useful.
Helps support and stabilize compatible vessels during laboratory heating or stirring applications.
OHAUS specialty clamps can be used as part of compatible laboratory support assemblies for holding probes, glassware, vessels, or other laboratory apparatus.
| Part Number | OHAUS Description |
| 30392195 | Clamp Holder CLC-CLMPHA |
| 30392233 | Specialty Rod Clamp CLS-RODS |
| 30392314 | Specialty Column Clamp CLS-COLMNSS |
| 30392315 | Specialty Column Clamp CLS-COLMNSM |
| 30392316 | Specialty Column Clamp CLS-COLMNSL |
| 30392317 | Specialty Column Clamp CLS-COLMNSX |
| 30392318 | Specialty Nester Clamp CLS-NESTXS |
Clamp selection depends on the apparatus being held and the support configuration. Contact Cambridge Environmental Products if you need help matching OHAUS clamp hardware to a specific vessel, probe, thermometer, or laboratory setup.
Guardian 5000 models include an RS232 port for compatible remote-control and data-logging applications.
Use 30304101 when an RS232-to-USB connection is required, or 30304102 when an RS232-to-Ethernet connection is needed.
| Part Number | Interface | Typical Requirement |
| 30304101 | RS232 to USB | Connection to a compatible computer through USB |
| 30304102 | RS232 to Ethernet | Compatible network or Ethernet-based communication setup |
These accessories are designed for use with compatible models in the OHAUS Guardian 5000 Hotplate, Stirrer & Hotplate Stirrer Series, including:
Not every accessory applies to every Guardian 5000 configuration. Temperature probes require a compatible heating model, while splash shields are model and plate-size specific. Confirm the instrument model and required application before ordering.
Guardian 5000 K1 configurations use the OHAUS 30500590 PT1000(A) 20 cm stainless-steel probe together with the 30973298 probe-holder kit.
They differ in wetted material and maximum listed temperature range. The stainless-steel PT1000 probes listed here are rated from -40 to 400°C, while the PTFE versions are listed from -40 to 200°C. Select probe material based on your sample chemistry and application requirements.
The primary difference is probe length. A 25 cm probe may be useful for deeper vessels or installations where greater immersion reach is required.
OHAUS part number 30910731 is the splash shield listed for compatible e-G52XX07C Guardian 5000 configurations.
Use OHAUS part number 30910732 for the 10 x 10 in e-G52HS10C.
Use OHAUS part number 30910733 for the 5.3 in round e-G52HSRDA.
Guardian 5000 models include RS232 communication. OHAUS part number 30304101 provides an RS232-to-USB interface for compatible computer connections.
Yes. OHAUS part number 30304102 is the RS232-to-Ethernet interface kit for compatible communication setups.
A probe-holder system helps maintain consistent probe position and immersion during temperature-controlled heating. The appropriate holder depends on the vessel and laboratory setup.
Cambridge Environmental Products supplies OHAUS Guardian 5000 temperature probes, interface kits, splash shields, clamps, probe holders, and support accessories in Canada with CAD pricing and Canadian purchasing support.
Cambridge Environmental Products supplies OHAUS Guardian 5000 accessories in Canada for research laboratories, universities, food and beverage QA/QC, environmental laboratories, industrial quality control, and general laboratory applications.
If you are unsure which accessory is compatible, provide your Guardian 5000 model number, application, vessel size, required temperature range, and sample material and we can help confirm the appropriate part number.
With more than 20 accessory options on this listing, the easiest way to avoid ordering the wrong part is to match the accessory to your exact Guardian 5000 model and application.
Send us your Guardian model number and tell us whether you need temperature control, probe mounting, splash protection, vessel support, USB/Ethernet connectivity, or another accessory.
