Multi gas detector can measure 4 gases (CO, H2S, O2, LEL) at the same time with high accuracy and reliability, and it is widely used in oil, metallurgy, chemical, medical, agriculture, refinery and other industries.
- Use high accuracy sensors
- LCD dot matrix display, easy to read
- Gas unit ppm and mg/m3 can be switched quickly
- Alarm with ultra-high buzzer sound and light, high and low alarm values are settable
- Rechargeable lithium polymer battery with high capacity enables long working time
- With a clip, easy to carry
- Rugged and durable housing, comfortable touch
||Carbon Monoxide (CO), Hydrogen Sulfide (H2S), Oxygen (O2), Combustible (LEL)
||CO: 0 to 1000ppm, H2S: 0 to 100ppm, O2: 0 to 30%VOL, EX: 0 to 100%LEL
||CO: 1ppm, H2S: 0.1ppm, O2: 0.1%VOL, EX: 1%LEL
||LCD dot matrix display
||Backlight time is settable; the backlight will be auto on when alarming.
|Signal Output (Optional)
||High speed data transmission by USB, available for data downloading and printing
||Sound and light
||Gas units ppm and mg/m3 are switchable
||3.7V rechargeable lithium battery
Operating time about 13h
Typical charge time less than 6 hours
||Exia ll CT4
Tips: What does it mean, the gas units PPM, %LEL, %VOL in multi-gas detector's specification?
PPM refers to parts per million, a unit of gas volume concentration.
For solution: it means that there’s 1/1000 ml solute in the 1L aqueous solution, so its concentration is 1ppm.
For gas: it’s one of representation method of pollutant concentration in the ambient atmosphere (air).
LEL refers to the lower explosive limit. When the combustible gas reaches 100%LEL, it’s easy to explode, and the explosion occurs as soon as contacting an electric spark. Therefore, 0-100%LEL generally refers to the range of combustible gas measurement. For example, hydrogen: 4%VOL=100%LEL, methane: 5%VOL=100%LEL.
VOL refers to the volume ratio of target gas in per volume. It’s generally used for high concentration. 1%VOL is equal to 10000PPM, and generally it is for oxygen and combustible gases. For example, how much oxygen in a space.