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Milwaukee SE600 Lab Grade Combo pH / EC / TDS Probe

SKU: 9139-SE600~ea

SKU: 9139-SE600~ea

This product may be backordered. General ETA is 10-14 business days for delivery. Please feel free to contact us: or 1-800-535-3751 to confirm stock / lead time. We appreciate your business!


Milwaukee SE600 Lab Grade Combo pH / EC / TDS Probe

The SE600 probe is designed for use with the Milwaukee MW801 and MW802 PRO 3-in-1 pH, EC, TDS Combo Meters.

The resin body is highly durable, chemically resistant, and protects against accidental damage while the double junction design reduces the risk of clogging.  The gel filled design feature removes the need to maintain electrolyte levels. 


  • Body: Polypropylene
  • Reference: Single, Ag/AgCl
  • Junction: Cloth
  • Electrolyte: Gel
  • pH Range: 0 - 13 pH
  • Temp Range: 20 - 40 C (68 - 104 F)
  • Tip Shape: Spheric
  • Pressure: 0.1 bar
  • Length: 3.8 inches
  • Cable length: 7 pole / 3.3 feet
  • Connection: DIN


The SE600 Combo electrode includes both a pH and EC electrode which requires maintenance.  All pH sensors have a limited life and response time gets longer with age. Properly maintaining the PRO pH Tester will give fast, accurate results for longer.

EC sensors are more robust but can still be affected by residue build up.  Here are tips to keep the probe working properly:

  1. Always store with the cap full of buffer or storage solution, not water.
  2. Clean the probe regularly by soaking it in cleaning solution.
  3. Calibrate after cleaning and/or storage before testing to adjust for changes in the pH and EC sensor.
  4. Gently stir the probe in the sample for a faster result.
  5. Rinse in water after every test.