H3 Tuya Smart Wi-Fi Alarm Kit
- Replaceable plug(US, EU, BR)
- Doorbell function, you can choose the ringgtones between 17songs & 32alarming ring
- Wireless two-way communication, no need wiring
- 50pcs detectors can be added, each detector can be programmed
- Defense zones support disarm/arm, home arm, 24h arm, delay arm, etc..
- Built-in back-up battery, standby time is about 4 hours