Gas alarm

Product description:
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 opened rely contacts
(3)Operating Frequency: 433 MHZ/315MHZ (optional)
6.Size:115mm*70mm*40mm
7.Weight:228g/pcs
8.Package size:58.5cm*28.5cm*53.3cm
9.Quantity/Box:100pcs
10.CtnWei(kg):28kg
11.Q`CTY/20`FT：35200pcs