Weatherproof outdoor on-site alarm system wireless 433MHZ big siren with loudly sounds

Main function:
1. Support 20pcs Wireless sensors and 10pcs wireless remote controls
2. Sound level: 110dB
3. Waterproof
4. Input Voltage: DC12V 1A
5. Static Current:＜75mA
6. Alarm Current:＜850mA
7. Wireless frequency: 433MHz (±75MHz)
8. On-site High-decibel alarm product, will make big soud when be activated
9. Product size: 100*90*90mm(siren)