Waterproof dissolved oxygen test pen LX100WDO is microprocessor-based test pen with automatic temperature compensation (ATC) that provides high accuracy results under fluctuating temperatures. Polarographic DO electrode has a built in temperature sensor measures dissolved amount of oxygen in water and easy replaceable membrane cap. Provision for 2 points automated push button calibration.
| DO range | 0 ~ 19.9 mg/L |
|---|---|
| DO resolution | 0.1 mg/L |
| DO electrode | Polarographic electrode |
| DO electrode measurement range | 0 ~ 19.99 mg/L |
| DO accuracy | ± 0.5 mg/L |
| Temperature range | 0 ~ 99.9 °C |
| Temperature resolution | 0.1 °C |
| Temperature accuracy | ± 0.5 °C |
| Temperature compensation | 5 °C ~ 45 °C |
| Display | Dual-display |
| Power | 4 V × 1.5 V |
| Dimensions ( L × W × H ) | 170 × 37 × 37 mm |
| Weight | 90 g |
Auto-off conservation of energy
Low cost and long life span electrode
High accuracy results
Used for water quality testing such as drinking water, swimming pools, laboratory applications, pharmaceutical, medical, hydroponics, aquariums and aquaculture, etc.

| DO electrode | Polarographic oxygen (LX4000) |
| Temperature range | 5 °C ~ 45 °C |
| Measurement range | 0 ~ 19.99 mg/L |
| Accuracy | ± 1.5 % FS |
| Dimensions | 12 mm × 165 mm |