Brand Name: PGST
·Model Number: PG-100
·Power adapter: DC 12V 1A
·Standby power: ≤90mA
·Alarm current: ≤450mA
·Back-up battery: Li-ion7.4V 500mAh
·Built-in Siren Volume: 90dB
·Wireless frequency: 315MHz/433MHz/868MHz
·Housing material: ABS
·Temperature range: -10â„�~+55â„�
·Humidity range: ≤80% (No freezing)