Smart Sensor ST-8990 Portable Multi Gas Detector

Introduction: The Multi-Gas Meter is a portable and handheld instrument that is capable to use continuously monitoring four different gas: O?, LEL, CO, H?S, when detected these gases, all the concentration will displayed on the LCD. The unit also provided user to configure high and low alarms, also STEL/TWA alarm function. The unit has audio and visual alarm once the alarm condition is exceeded. Features: It is capable of detecting 4 kinds of gas: carbon monoxide(CO), hydrogen sulfide(H?S), oxygen(O?) and combustible gas(LEL).Premium material and selected top quality electronic components ensure excellent sensitivity and accurate measurement.Pocket-size, light weight and ergonomics design make it convenient to carry and use.Built in 2500mAh lithium-ion battery after a full charge allows this alarm to work for 8 hours operation, and work about 6 hours with external gas sampling pump.Backlight enables you to see the value clearly even in dark environment.2 alarm methods: audio alarm and icons showed on the screen.Various functions meet your demand: gas monitoring, peak value display, low alarm setting mode, high alarm/TWA setting mode, etc.It is suitable to be used in petroleum, chemical industry, metallurgy, refining, etc. Specifications: Brand: SMART SENSORModel: ST8990Color: YellowMaterial: ABSCarbon Monoxide Range: 0?999ppmHydrogen Sulfide Range: 0?500ppmOxygen Range: 0?30%VOLCombustible Gas Range: 0?100%LELOperation Current: 220mAShort Circuit Current: ?3AOperation Voltage: 3.7VMaximum Open Circuit Voltage: ?4.2ABattery: Lithium batteryBattery Capacity: 2500mAhDisplay Type: Segment type LCDOperation Humidity: 15%~95%RHOperation Temperature: 10??50?Storage Temperature: 0?40?Item Size: 11.45 * 6.44 * 4.45cm / 4.50 * 2.53 * 1.75inItem Weight: 200g / 7ozPackage Size: 20 * 11 * 7cm / 7.87 * 4.33 * 2.75inPackage Weight: 475g / 16.8oz Notes: -Gas monitor only, other accessories are not included.-Due to manual measurement, there may be deviation.-Due to photograph light or other reasons, the item in picture and material object may have slight difference, please in kind prevail.-Please read the manual carefully before you use it. Packing List: 1* Multi-Gas Meter1* Manual1* USB Cable Additional Information Production Capacity 100