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  • Waterproof Enclosure
  • Requires 12V DC power
  • Low power consumption - less than 10 mA
  • Easy to Install
  • Easy to Use
  • User-selectable for 0 to 1 V DC or 0 to 5 V DC Outputs
  • Australian Made

All microCHEM units are easy to install. The enclosure is waterproof to IP65, so a separate cabinet is not required. Waterproof cable glands are provided for the input and output cables.

The microCHEM series is the best value range of water quality transmitter available today. They are ideal for environmental monitoring, cooling tower control, and any industrial site utilising centralised control systems. The microCHEM series is an excellent solution for Original Equipment Manufactures (OEM's) who wish to incorporate water quality monitoring into their own designs. Over 30 years experience in this industry ensures that the microCHEM series provide accuracy and reliability without the OEM needing to spend any time or money on R & D.

The microCHEM series is proudly designed and manufactured in Australia. The TPS Quality System has been certified in accordance with AS/NZS ISO9001 standards. You can always be assured of the best quality, service and value for money.

0 to 200.0 % Saturation or 0 to 20.00 ppM (mg/L)

Ranges selectable by jumper setting.

0.1% of full scale

+/-0.2% of full scale

+/-0.1% of full scale

+/-0.2% of full scale

Ambient Drift
<0.05% span/oC

Long Term Drift
<0.2% per year

Temperature Compensation
Dual automatic temperature compensation system, (sensor limit 45 oC)

Zero Range

Span Range
70 to 130%

Sensor YSI5739 Polarographic sensor with inbuilt ATC sensor.

Polycarbonate, waterproof to IP65

0 to 1 V DC
0 to 5 V DC
(selectable by jumper setting)

Galvanic isolation of sensor input

12V DC, approx 10 mA

Enclosure : 125 x 85 x 56 mm
PCB only : 115 x 77 mm
(82 x 58 mm mounting hole centres) 

Instrument only : Approx 250 g 
Full Kit : Approx 1.0 kg

Instrument Operating Environment
Temperature : 5 to 45 oC
Humidity : 0 to 95% R.H.

The Kit Without Probes:

  • MicroChem-DO
  • Instruction Manual

The Kit With Probes:

  • MicroChem-DO
  • Instruction Manual
  • YSI Cable
  • YSI Sensor