ZL-7863A Temperature and Humidity Controller with Day and Night control version 2 .0 ZL-7863A has 2 timer outputs for illumination, ventilation, air inlet or exhaustion. Timer 1's on/off period could have different temperature and humidity, to simulate day and night. It could be applied to control climate for green house, reptile, and so on. Heat hump (compreor) can save energy. Beside simple heating R6/cooling R7 outputs control, the controller provides optional heat pump control. Cooling only by compreor, driving by R6 only. Constant temperature control by compreor, driving by R6, R7 and R2. Heating, cooling, or constant temperature control Humidifying, de-humidifying, or constant wet level control Two timer outputs Over temperature or wet level warning Restart after power supply comes back Compreor delay protection (if heating or/and cooling by compreor) Power supply: 100 ~ 240Vac, 50/60Hz. Output:3A@250Vac, for all 7 outputs. To drive bigger loads, use intermediate relay 10A ~ 40A, SSR-XXAA, or magnetic contactor. Input: One humidity sensor, provided cable length 2 meters. One temperature sensor, R10K@25/B3470@25/50, cable length 2 meters. Humidity sensor:If humidity lower than 80%RH, select ZL-SHr05J. If humidity higher than 80%RH, select ZL-SHr05P. Setting range: Humidity 0 ~ 99%RH, temperature 0 ~ 65. Sensor precision:Humidity 2%(ZL-SHr05P), 3%(ZL-SHr05J), temperature 1% @ 25. Control resolution:Humidity 1%RH, temperature 0.1. Working environment:-10 ~ 45; 90%RH without dew. Case dimension:L78 x W34.5 x D71 (mm). Drilling size: L 71 x W29 (mm). Case materials: PC + ABS, fireproof. Protection level:IP65 (Front panel only).