MASTECH MS6310 Portable Combustible Gas Leak Detector Natural Gas Propane Gas Analyzer With Sound Light Alarm Features: 1. Quickly identifies and pinpoints gas leaks 2. One hand operation and manual regulate sensitivity to eliminate background gas level 3. High sensitivity 4. Visible and audible alarm at 10% ~ 40% LEL 5. Resume calmness approx 7~10 minutes in pure air 6. Power supply 6V( 4x“AA”1.5V alkaline batteries, but not included according to Post office shipping requirement) Gas Detected: Natural Gas, Methane, Ethane, Propane, Butane, Acetone, Alcohol, Ammonia, Steam, Carbon Monoxide (not to quantify) , Gasoline, Jet Fuel, Hydrogen Sulfide, Smoke, Industrial Solvents, Lacquer Thinner, Naphtha Specifications: Specifications Range Sensitivity 50 ppm methane Sensor Solid State Alarm 10%~40% LEL Warm-up Approx. 2minute Response Time < 2 seconds Duty Cycle Intermittent Battery life Approx.9 hours continuous use typical Operating Temperature 0 ~50° Operating Humidity 10 ~90% RH (non-condensing) Dimensions 172×70×46 mm Package Includes: 1 * MS6310 combustible gas detector 1 * User manual ---------------------------------------------------------------------------------------------------------------------------------------------------------------- ¢ÍãºàʹÍÃÒ¤ÒËÃ×ÍÊͺ¶ÒÁ¢éÍÁÙÅà¾ÔèÁàµÔÁ 0922530999 , 0848744848ËÃ×Í email ( t_phuttharat@hotmail.com ) ªÓÃФèÒÊÔ¹¤éÒâ´Â¡ÒÃâ͹à§Ô¹ â´Â¨Ð·Ó¡ÒÃÊè§ÊÔ¹¤éÒã¹Çѹ¶Ñ´ä»â´ÂºÃÔ¡Òà EMS áÅШÐÊè§ Tracking NO. ãËé·Ò§ EMS ÃÍÃѺÊÔ¹¤éÒÀÒÂã¹ 2-3 ÇѹËÅѧ¡ÒèѴÊè§ »Å. ¡Ã³ÕäÁèÁÕÊÔ¹¤éÒã¹ÊµçÍ¡ÍÒ¨µéͧãªéàÇÅÒ㹡ÒÃÊÑ觫×éÍ»ÃÐÁÒ³ 10-20 Çѹ·Ó¡Òà ·´ÅͧãªéÊÔ¹¤éÒáÅÐÊÔ¹¤éÒäÁèµÃ§¡ÑºÃÒÂÅÐàÍÕ´äÇé ËÃ×Í äÁè¾Íã¨ã¹µÑÇÊÔ¹¤éÒ àÃÒÂÔ¹´Õ¤×¹à§Ô¹ 100% (ÀÒÂã¹ 7 Çѹ)