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 Product Name: gas detector 
 Product Type: Sn-838-2U 
 Product Type: Gas detector series 
 Product Specifications: Standard 

 High quality gas sensors for combustible gas detector, the microprocessor combined with a precision temperature sensor can be intelligent compensation the drift of the sensors, the environment to adapt to a wide range of job stability, need to debug using the ceiling installation, easy to install, easy to wire, widely the presence of combustible gas used for households, hotels, apartments and other places for security monitoring. Can detect natural gas, liquefied petroleum gas, artificial gas. 

 Note: 
 Combustible gas detector should be installed in gas appliances, may leak rooms, other rooms of the gas leak may not be an alarm. 
 Prohibited during the installation process, vibration, drop, impact, combustible gas detector, or combustible gas detector will be invalid. 

 Combustible gas detector installation location, not being on the gas fumes. 
 Not be installed in the larger at a well-ventilated or air. 
 Other objects must not be obscured. 
 Not be installed next to the vibrating object such as refrigerators, air conditioners. 
 The green light is flashing, you can not jet to check. 
 Do not spray combustible gas detector around the paint, spray a lot of irritating gases, such as pesticides, alcohol, and so on. 
 Do not cut off the power to ensure the power supply. 
 Should be installed in accordance with the requirements in the manual is not free to move and change the installation location 

 Mounting position: 
 The gas detector should be installed on the leakage of gas gathering place or the only way is less than 3 meters away from the gas source. 
 Gas, natural gas users: about 0.3 m from the ceiling. 
 Liquefied gas users: about 0.3 m from the ground. 
 Do not alarm installed in the kitchen or gas with the top of the combustion exhaust and cooking fumes will that frequent alarm accelerated aging. 

 Features: 
 Supply of gas detector / gas detector manufacturers / gas detectors wholesale 
 1, automatic reset 
 2, microprocessor-controlled 
 3, high-reliability sensor 
 4, automatic fault detection indication 
 5, the detection of natural gas, liquefied petroleum gas 
 6, SMT manufacturing process, stability 

 Technical parameters: 
 Induction gases: combustible gases (natural gas, liquefied petroleum gas, gas, etc.) 
 Working voltage: AC220V 
 Power consumption: ≤ 2W 
 Operating Temperature: -10 ° C to +50 ° C Operating Humidity: ≤ 95% RH 
 Alarm mode: network output / sound and light alarm 
 The alarm sound pressure: ≥ 70dB / m 
 Alarm concentration: 10% LEL 
 Alarm concentration of error: ± 5% LEL 
 Alarm output: relay output (normally closed) 
 Dimensions: 110 * 70 * 40mm 

 After-sales service: three months, there are quality problems within the package returned for repair within one year and lifetime maintenance 

 Contact: 
 Name: Don salty winter 

 QQ: 2267820676 

 Phone: 15112355110 

 Tel :0755 -61,233,259 

 Fax :0755 -61,233,268 

 Postal Code: 518000