Product details :
This circuit is used to alarm when you leave the door or window open everywhere such as the air-conditioned room , car door , etc.
-Power supply : 9-12 VDC
-Consumption : 1.9uA (standby) @ 9VDC , 60mA (working) @ 9VDC
-Duration of delay time before alarm : 10-60 seconds
-Included the magnetic switch in this set
-PCB Dimensions : 2.81 x 1.84