EziLab offers the Compact Dissolved Oxygen Meter EZL-CDO121, a portable DO meter reading 0 to 20 mg/L through a polarographic electrode that also tracks temperature and salinity. Automatic temperature, salinity, and pressure compensation correct readings, and auto-calibration with a calibration sleeve gets the probe ready after 3 to 5 minutes of polarization. A backlit LCD, 200-set data storage, and auto power-off fit a 360 g IP57 housing run on two AA batteries. Screw-on membrane caps replace the sensing membrane with a simple twist, and the anti-slip, impact-resistant shell survives field handling, so this dissolved oxygen tester suits stream banks, pond edges, and treatment plant walkways. Technicians log readings on site instead of carrying samples back, avoiding oxygen loss in transit. Three spare membrane caps, electrolyte, and backup batteries ship with the kit. Aquaculture farms check fish ponds and tanks to prevent oxygen crashes, while water utilities monitor source water and aeration basins. Sewage treatment plants track dissolved oxygen through biological stages, and environmental protection agencies survey rivers and lakes. As a handheld dissolved oxygen meter, it gives field crews and teaching labs a light, waterproof option. See the Dissolved Oxygen Meters and Compact Dissolved Oxygen Meter pages for full specifications.
| Dissolved Oxygen | { |
|---|---|
| Working Conditions | { |
| Power | 2 AA batteries (1.5 V) |
| Dimensions (W×D×H) | 160×90×30 mm (Instrument), 480×300×60 mm (With Packing) |
| Weight | 360 g (Instrument), 1 kg (With Packing) |
Large LCD screen with adjustable white backlight
Rack and skid proof shell
DO mode have functions of ATC, auto salinity compensation and auto pressure compensation
Polarographic DO electrode can measure temp., salinity and DO
Equipped with DO electrode calibration sleeve, only need 3-5 minutes for polarization
Built in microprocessor chip with auto-calibration, auto- temperature compensation, data storage, self-diagnosis, auto-power off and low voltage display
Combined diaphragm cap, replace sensitive membrane just by screwing new cap
IP57 waterproof housing
Data storage of 200 sets
These compact DO meters are suitable for many applications like: aquaculture, water source monitoring, sewage treatment, environmental protection monitoring.
Compact DO Meter LO-CDOM400 Series 1 unit
Dissolved Oxygen Electrode 1 pc
Temperature Electrode 1 pc
Membrane Cap 3 pcs
Electrode Electrolyte (30 ml) 1 bottle
Back up AA battery 2 pcs
Operation Manual 1 copy
