Door-Windows Alarm with Time delay 10-160seconds Assembled Kit 9-12VDC [MXA077] &lt;==Beware to Add To Cart !!! Only sold by Thaikits for product warrantee and free technical support. Power supply : 9-12VDC / 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 : 2.81x1.84 in. / Comes with the schematic diagram