We pride ourselves on our ability to evolve, innovate, and consistently deliver better value to our customers. Every product is informed by decades of engineering experience and industry know-how and is hand-tested to function flawlessly right out of the box. No matter what your water quality monitoring needs are, we have a solution designed to make your job easier.
FEATURED 
9011M DO/Temperature Basis Portable Meter
Portables DO TEMP
The Basis Portable Series is Jenco’s latest iteration of our portable meters and represents a huge step forward for on-location water quality measurements.
3951
Inlines DO TEMP
DO & temperature monitor/transmitter with menu driven, sealed, backlit LCD, and an Modbus RS-485 output for DO. Tinned lead connectors.
3931
Inlines DO TEMP
DO & temperature monitor/transmitter with menu driven, sealed, backlit LCD, and an isolated and reversible 4 to 20 mA current output for DO. Tinned lead connectors.
6312DTF/6312DTB
Inlines DO SAL TEMP
Dissolved Oxygen, Temperature In-line Analyzer. 1/4 DIN, IP65, panel mount DO/Temp analyzer with two sets of 2 wire 4 to 20 mA current output, 2 sets of programmable on/off relay, RS-485 output and backlight
9030M
Portables DO TEMP
Jenco Light Sensing Optical DO handheld portable meter with Jenco LSDO optical DO sensor allows user selectable salinity and pressure compensated DO readings with 50 data sets of reviewable memory packaged in a waterproof IP65...
3921
Inlines DO TEMP
DO & temperature controller with 2 sets of On/Off relays, stored calibration data, backlit LCD display for DO and temperature.
9250M/9251N
Portables DO TEMP
Field or lab polarographic DO/temperature meter, water resistant case, RS-232, 8-pin DIN connector.
9010M/9020M
Portables DO TEMP
Reliable, easy to use general purpose portable DO meters with 50 sets of memory storage