The ZL-6x0A-R series is a thermostat with RS485 communication. The device is suitable for controlling cold storage, seafood storage, water heaters, etc. Cooling or heating mode. Regular or intellectual thaw. Fan control. Temperature calibration. High/low over temperature warning. Temperature output delay protection. Sensor failure warning. Buzzer warning. External warning input. RS485 communication. Sensor line: 1.5 meters long (including sensor) Sensor: NTC Setting range: -40-120 Celsius Display range: -50-130 Celsius Power: 185-245Vac, 50 / 60Hz Load: 3A, 10A, 250Vac (resistance) Storage temperature -30-70 Celsius Working temperature: -10-45 Celsius Voltage: 220Vac Work: relative humidity 5-85%, no condensation Protection level: IP65 (front only) Colour: Black Material: Plastic Size: L78 x W34.5 x D71 (mm) Installation drilling: L71 x W29 (mm) Package Contents: 1 x digital thermostat 1 x copper head sensor Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is 1-3cm. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.