Zealviz 433MHz Wireless Smoke Detector, Smart Home Fire Alarm

Standalone Smoke and Heat Alarm，This product is suitable for fire alarms in homes, shops, dance halls,hotels, factories, warehouses, trains, office buiidings and other places.High sensitivity, stable and reliable, low power consumption, attractiveand durable, easy to use. It can self-check the circuit and power supplyfor fire prevention – a must-have!