The Multi-Gas Meter is a portable and handheld instrument that is capable to use continuously monitoring four different gas: O₂, LEL, CO, H₂S, 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.

• It is capable of detecting 4 kinds of gas: carbon monoxide (CO), hydrogen sulfide (H₂S), oxygen (O₂) 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 SENSOR
• Model: ST8990
• Material: ABS
• Carbon Monoxide Range: 0～999ppm
• Hydrogen Sulfide Range: 0～500ppm
• Oxygen Range: 0～30%VOL
• Combustible Gas Range: 0～100%LEL
• Operation Current: 220mA
• Short Circuit Current: ≤3A
• Operation Voltage: 3.7V
• Maximum Open Circuit Voltage: ≤4.2A
• Battery: Lithium battery
• Battery Capacity: 2500mAh
• Display Type: Segment type LCD
• Operation Humidity: 15%~95%RH
• Operation Temperature: 10℃～50℃
• Storage Temperature: 0～40℃
• Item Size: 11.45 * 6.44 * 4.45cm / 4.50 * 2.53 * 1.75in
• Item Weight: 200g / 7oz

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.