à¤Ã×èͧµÃǨ¨Ñºá¡çÊ Gas Detector Gas Meter SPD202 Combustible Gas Leak Detector à¤Ã×èͧµÃǨ¨Ñºá¡êÊ LPG NGV Product Description Features: SPD202 combustible gas detector can be used in hazardous areas indoors and outdoors, where combustible gas is produced, stored, used, etc., such as chemical, petroleum, metallurgy, oil depot, LPG (Liquefied Petroleum Gas) station, pharmaceutical, gas transmission and distribution, etc. To detect the leakage and show the leaking concentration with a digital display. This device can set two-level alarming value. The detector can raise the acousto-optic alarming when the detected concentration reaches the preset value Technical specification: 1) Detecting principle: Catalytic combustion 2) Detected gas: Combustible gas 3) Measurement range: 0-100% LEL (LEL: Low Explosion Level - the lowermost concentration of combustible gas to generate an explosion in air when meeting a naked flame) 4) Resolution: 0.1% 5) Error: ± 2% 6) Response time: <30s 7) Operation temperature: -10~60 8) Operation humidity: <99%RH 9) Display mode: Digital display with large LCD screen 10) Alarming method: Acousto-optic alarming 11) Power supply: 4× 1.5V AA batteries 12) Current: <110mA (measuring status) <15mA (non-measuring status)