Power supply voltage: AC100 - 240V 50/60HZ Output load: R1 load 5A/250Vac, R2, R3 load 16A/250Vac, R4, R5 load 3A/250Vac (all loads are resistive). Setting range: humidity 5% - 95% RH score 0.1%; The temperature is -20 - 60, and the graduation value is 0.1 Measurement accuracy: temperature 1%; Humidity 5% Working environment:-20 - 45; No condensation at 10 - 90 RH. Product introduction: ZL-7801A is an intelligent temperature and humidity controller, which adopts miniaturization and IP65 grade panel protection design, with small volume, light weight, simple operation and convenient installation. Main functions: Refrigeration control Heating control Dehumidification control Humidification control Dew warning Alarm output Timing load output Load delay output Overall dimensions: length 78 x width 34.5 x depth 71 (mm) Opening size: length 71 x width 29 (mm) Protection grade: IP65 (front panel) Note:Due to different factory batches, the words of products are different, and the color and appearance of product accessories are slightly different, but it does not affect the normal use. Colour:As Shown Material:PC+ABS Package Contents: 1 * ZL-7801A Temperature and humidity controller 1 * ZL-SHR05A sensor Only the above package content, other products are not included. Note: Light reflection 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.