Battery Operated (3X1.5V;1X9V)
Inter-Connected (can be communicated) with 58pcs;
Low Battery Single 9V battery at 6.8V, 3X1.5V

Battery Operated (3X1.5V;1X9V)
Inter-Connected (can be communicated) with 58pcs;
Low Battery Single 9V battery at 6.8V, 3X1.5V at 3.3V
Test Button(RED LED)
Learn Button(Green LED)
Solid Connections And Battery Included
Size: 124X48mm
Technical Data:
Working voltage:
DC9V (smoke testing)
DC4.5V (transmission/Receiver3X1.5V battery)
Current:
DC9V   average stand-by current≤10uA
DC9V   average alarming current ≤ 15mA
DC4.5V average working current ≤115 uA
Alarming decibel: ≥85dB/3m
Alarming LED: Red LED
LEARN LED: Red/Green LED
Frequency: 433.92MHz
Transmission/Receiver distance: Spacious distance≤50m
Working temperature: -10°C~40°C