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JENCO INSTRUMENTS was established more than 40 years ago on the idea that innovative water quality instruments should be available at competitive prices and their mission is to bring innovation to anyone who works with analytical instruments.

Since the launching of the world's first portable digital pH meter in 1975, Jenco Instruments has continued to focus only on building water quality instruments for measuring pH, ORP, conductivity, TDS, salinity, resistivity, dissolved oxygen, ion, turbidity and temperature. 

This single minded-focus is combined with Jenco's obsession with finding the best balance between quality and value - whether it is the simplest testers or the most advanced, gesture-operated, WIFI-enabled benchtop meters.   

Optical DO/Temp Portable Meter


Optical DO/Temp Portable Meter


Features :
  • The 9030M measures dissolved oxygen in water using optical technology
  • Simultaneous display of dissolved oxygen and temperature measurements
  • Easy to use user interfaces
  • 50 data set of reviewable memory
  • Automatic temperature compensated (ATC) dissolved oxygen readings
  • User selectable salinity and pressure compensated dissolved oxygen readings
  • IP65 waterproof housing
  • Automatic shutoff function
  • Low battery indicator
  • RoHS and CE compliant


Range :

Dissolved oxygen : 0.00~20.00mg/L
Dissolved oxygen : 0.0~200.0%
Temperature : 0.0~50.0°C

Resolution :

Dissolved oxygen : 0.01mg/L
Dissolved oxygen : 0.1%
Temperature : 0.1°C

Accuracy :

Dissolved oxygen : ±1.5% of reading or ±1.5mg/L, whichever is greater
Dissolved oxygen : ±1.5% of reading or ±1.5% air saturation, whichever is greater
Temperature : ±0.3°C

Pressure Compensation : 500 to 1125 mBar 
Salinity Compensation : 0.0 to 40.0 ppt
Electrode Type : Optical 
Calibration Backup : Yes
Automatic Temperature Compensation : Yes
Power : 9V alkaline battery 
Operating Ambient Conditions : 0~50°C, at 90% RH
Weight / Dimensions : 260g (including batteries) / 70mm X 198mm x 37mm

Accessories :

LSDO Probe : Optical dissolved oxygen DO probe with 4m cable, 4pin connector
Replacement Sensor Cap : Replacement sensor cap for LSDO probe 
Carrying case : Hard carrying case


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