- Operating Voltage: DC9V battery
- Static Current: less than 10uA
- Alarm Current: less than 20mA
- Alarm Indication: Red LED flash
- Sound Level: More than 85dB/m
- Operating Temperature: -10°C ~+50°C
- Operating Humidity: less than 95% RH
- Detecting Area: 20 square meter
- Wireless frequency:433mhz or 315mhz, default 433mhz, please inform us if you need 315mhz
- Timing resistor: 1.5M/3.3M/4.7M optional, default:4.7M
- Radio Distance: 100m(in open area)
- Dimension:107mm dia. * 37mm
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