GSM AC Power Monitoring Alarm

Sending sms text message to owner once ac power failure & recovery!
inquiry ac power status from your mobile phone anywhere!
the gsm ac power monitoring alarm rtu5012 is special for monitoring 110~220vac power status by sms text message, it integrated high performance gsm module and ac power status monitoring circuit inside, while ac power goes off, will send ac power goes off to the authorized number immediately, and while the external ac power goes on, will send ac power goes on to the authorized number immediately. When the backup battery voltage lower than 3.6v, will send the sms backup battery low voltage to the authorized number immediately. It includes internal large capacity rechargeable battery which can standby upto 8 hours after ac power failure. No need any other detector!