Temperature Alarm: When the ambient temperature is less than the minium setting temperature or higher than the maximum setting temperature, the module alarm to remind you to turn on or turn off the air conditioning to keep your home with the moderate temperature. Alarm: With alarm in one channel, you can set the alarming time by random. Clock keep going when power down: After tune the preset time, even if power is off, power after that, no need to re-set the time., Manufacturer: Mcnhbdgg