Dear Sir, We need the gas leak detector. Specification is as below: Gas Leak Detector (Detection of LPG & NG) Quantity: 380 units Application: Residential usage Alarm Concentration: - LPG Gas: 600 ~ 4500 ppm - Natural Gas: 600 ~ 12500 ppm Detection type: Diffusion Measuring Method: Catalytic Combustion Type Response Time: less than 20 sec. Operation Temperature: 20 deg C to 25 deg C Operation Humidity: 10% to 90% RH (non-condensing) Alarm Signal: Alarm Lamp (Yellow or Red), Buzzer (audible), and DC: 12 V Output Approval: CE @ Approved Third party Inspection Report We would like to request for a quotation and catalogues/specification/inspection/test procedure for the above item. 联系方式Co:Hanter Maju (m) Sdn Bhd Add:Malaysia Tel:60-3-56335122 Fax:60-3-56330122 Email:peter@hanter.com.my