Model No:L&L-558B-W
 wireless gas alarm (AC110-240V)

other types:
Name: (1): Independent combustible gas detector with AC110-240V         L&L-558
      (2): Networking combustible gas detector with AC110V or 220V   L&L-558B-W
      (3): Networking combustible gas alarm with DV12-24V     L&L-558C

FEATURES:
1 Independent mode: It works as wireless auto gas leakage alarm.
2 Compatible mode: It is compatible with our burglar alarm system.
3 Self-detector and automatically give an alarm warning to users. When it works with our burglar alarm, with LED indicated, it sends a wireless signal to alarm host if detecting density with time reaches the limit figure required as below and then it alarms and the alarm host auto-dials the pre-setting telephone or mobile phone
4 It is strictly compliance with quality system, It can be effective to prevent fire by flammable gas, such as coal gas, liquid petroleum gas and natural gas. And monitor automatically
5 Widely use for house, coal station, colliery and so on

SECIFICATION:
1: Power supply: AC220V 50MHz
2: Start warm-up current: Less than 60MA
3: Working voltage: 6VDC
4: Static current: Less than 40MA
5: Alarm current: Less than 150MA
6: Static consume: <1W
7: Alarm consume <2W
8: Alarm volume: More than 90dB
9: Working environment: Temperature: -15 to + 50 degree
10:Humidity: Less than 97%
11: Alarm density: Coal gas: 1000~5000ppm, Liquid petroleum gas: 1000~5000ppm, natural gas: 1000ppm~5000ppm
12: Responding time: ≤ 30S
13: Alarm output: Frequent on or off signal, control exhaust fan, electrical magnetic valve signal
14:wireless frequency: 315Mhz / 433Mhz
15: Alarm output: wireless signal output
16:Size: 110mm×70mm×40mm