■ 144X144 Microcomputer-Designed Dissolved Oxygen Transmitter ■ Compatible with various electrodes such as MT, WTW, KOZE, and more ■ Large LCD screen with operational status and special symbols display ■ Outdoor waterproof design suitable for wall mounting, panel mounting, and cylindrical pipe installation ■ Features two isolated 0/4–20mA outputs corresponding to set DO and Temperature values ■ Simple and user-friendly operation interface **Measurement Range** mg/L O?: 0.00–50.00 mg/L % Air Saturation: 0–500% Temperature: –5.0 to +55.0?°C **Accuracy** mg/L O?: ±1% ±1 digit % Air Saturation: ±1% ±1 digit Temperature: ±0.1% ±1 digit **Temperature Compensation** Automatic compensation from –5.0 to +55.0?°C **Pressure Compensation** Automatic compensation from 500 to 1100 mbar **Salinity Compensation** Manual compensation setting from 0.0 to 70.0 ppt **Analog Output 1** Isolated 4–20mA output, programmable to correspond to DO measurement **Analog Output 2** Isolated 4–20mA output, programmable to correspond to temperature measurement **Relays** Two sets of ON/OFF outputs with programmable high/low points and hysteresis settings **Cleaning Contact** One set of ON/OFF output with programmable timer control **Operating Temperature** –20 to 50?°C **Power Input** 88–265V AC wide-range power supply, 50/60 Hz **Protection Rating** IP65 **Dimensions** 144mm × 144mm × 115mm (H × W × D) **Panel Cutout** 138mm × 138mm (H × W) **Mounting Options** Wall mounting, panel mounting, cylindrical pipe mounting **Weight** 0.8 kg