gas alarm,gas detector,Gas leakage detector,Natural gas detector

1\Hot wire type sensor
2\POWER:110VAC/220VAC/230VAC \9V-20VDC
3\Working temperature: -10degree~60 degree
4\Alarm density: Coal gas:1000~5000ppm, Liquid petroleum gas:1000~10000ppm, natural gas:1000ppm~5000ppm
5\INTERCONNECTING GAS DETECTOR 
  (1)CIRCUIT FOR NORMALLY CLOSED RELY CONTACTS
  (2)CIRCUIT FOR NORMALLY OPEN RELY CONTACTS
  (3)Operating Frequency: 433 MHZ/315MHZ (optional)
6\SIZE:125mm*30mm
7\Weight:228g/pcs
8\PACKAGE size:58.5cmX42.5CmX30.6cm
9\Quantity/BOX:80pcs
10\CtnWei(kg):24kg
11\QTY/20`FT:339200pcs