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Dissolved Oxygen Meters and sensors »

Waterproof pocket DO/Temp meter


$275.00 inc GST

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The EZDO 7031 Dissolved Oxygen meter offers easy measurement of DO and Temperature in a super pocket size kit. Great for Aquariums and Aquaculture systems 

The kit includes a carry case, 3 membranes, Electrolyte, Gold Cathode polishing paper and 4 AA Batteries.

Simply calibrate in air (101.7% ) after Polarisation . Zero can also be calibrated using water mixed with Sodium Sulphite . A small amount depletes the Dissolved oxygen to zero.


  1. Microprocessor based for fast-accurate DO calibration and measurements.
  2. Special viewing angle designed and waterproof housing IP 57 rated. It floats on water.
  3. Large LCD display pH or ORP or Conductivity or TDS or Salinity or DO and Temperature .
  4. Simple to calibrate by one pushbutton,automatic temperature compensation(ATC), Manual Salinity(MSC) and Altitude(MAC) Compensation.
  5. Multi-function with Data-hold, Max/Min and shows PTS after calibration. Degree ℃/℉ are switchable.
  6. Low battery indicator and auto off after 10 min if not used. 
  7. Easy to replace membrane -Pack of 3 included in the kit.
  8. Replaceable DO sensor 


  DO O2 Temp
Range 0~20.00mg/L 0~200% 0~90.0℃
Accuracy  ±0.2 + 1digit ± 2% FS ±0.2+1 digit
Resolution 0.01 0.1 0.1
ATC 0~50 ℃
MSC 0~50 ppt
MAC 0-20000 ft
Calibration 100% in air
Power  DC1.5V x 4 battery  size:AAA/UM-4
Dimensions Meter: 195 x 40 x 36 mm, Kits: 230 x 205 x 50 mm
Weight Meter: 135g(with battery), Kits: 780g




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