S150 is a cost-effective remote SMS monitoring controllers, supporting 8 digital input alarm, recovery status alarm and 2 relay output. Users can easily achieve remote control (on and off) of equipment, status inquiry, monitoring and anti-theft protection through SMS or cell phone SMS APP software anytime and anywhere. â??8 channels digital input, 1 associated relay output, 1 SMS control relay output; â??SMS arming and disarming; â??Power failure alarm function, automatically send SMS to user's cell phone for alarm when AC power is lost or restored; â??Timing patrol, you can set 0-24 hours host automatic reporting function, so as to avoid the failure of alarm due to the lack of sufficient balance of SIM card in the host.