MK-601 composite Gas Detector is a portable four-Gas Detector, the explosion-proof mark is Ex ib IIC T4 Gb, it is suitable for Zone 1, Zone 2, containing IIA ~ IIC, T1 ~ T4 explosive gas mixture places, by the National Explosion-proof Electrical Products Quality Inspection Center inspection qualified, to obtain the explosion-proof certificate. It can detect 1~4 kinds of gases at the same time, color screen display, simple and clear menu operation, support a variety of flammable, explosive, toxic and harmful gas detection, and the detected gases are detailed in Appendix 1.
The design, production and verification of this product comply with the following national standards:
GB3836.1-2010 Explosive atmospheres - Part 1: General requirements for equipment
GB3836.4-2010 Explosive atmospheres Part 4: Equipment protected by intrinsically safe type "i".
GB15322.3-2019 Combustible Gas Detectors Part 3: Portable Combustible Gas Detectors for Industrial and Commercial Use
JJG915-2008 V.R. for Carbon Monoxide Detection Alarm
JJG693-2011 Verification regulations for combustible gas detection alarms
JJG365-2008 V.R. of Electrochemical Oxygen Analyzer
JJG695-2003 V. R. of Hydrogen Sulfide Gas Detector
*Detect 1~4 kinds of gases at the same time;
*There are many types of detectable gases that can be supported, which can be freely combined;
* Color screen display, simple and convenient operation;
* Support no less than 100,000 data records storage;
* Standard TYPE C charging port (only used in safe areas), compatible with mobile phone chargers, charging protection, charging instructions;
* A variety of alarm methods, including sound, light, vibration, and can display color change indication alarm through the screen, support high concentration, low concentration, STEL, TWA and other alarms;
*Zero-point automatic tracking and temperature compensation algorithm to ensure the long-term stability of the instrument;
*IP protection grade IP65, splash-proof and dust-proof;

1 display, 2 buttons, 3 sensor air intakes, 4 LED indicators, 5 buzzers, 6 crocodile clips, 7 labels, 8 Type-C interfaces
| Detection Gas: | Detection range: | Underreporting: | High Newspaper: | Unit: | |
| Toxic gases | Oxygen (O2) | 0-30.0% | 19.5 | 23.5 | %vol |
| Hydrogen sulfide (H2S) | 0-100 | 10 | 15 | ppm/umol | |
| Hydrogen sulfide (H2S) | 0-500 | 10 | 15 | ppm/umol | |
| Carbon Monoxide (CO) | 0-1000 | 24 | 100 | ppm/umol | |
| Sulphur dioxide (SO2) | 0-100 | 2 | 5 | ppm/umol | |
| Chlorine (CL2) | 0-20.0 | 1.5 | 3 | ppm/umol | |
| Hydrogen cyanide (HCN) | 0-30.0 | 1.5 | 3 | ppm/umol | |
| Nitrogen dioxide (NO2) | 0-20.0 | 2 | 5 | ppm/umol | |
| Ammonia (NH3) | 0-100 | 20 | 40 | ppm/umol | |
| Ammonia (NH3) | 0-500 | 20 | 40 | ppm/umol | |
| acrylonitrile | 0-100 | 2 | 4 | ppm/umol | |
| Methanol (CH3OH) | 0-100 | 3 | 5 | ppm/umol | |
| ETO (Ethylene Oxide) | 0-100 | 2 | 4 | ppm/umol | |
| Nitric Oxide (NO) | 0-250 | 25 | 50 | ppm/umol | |
| Benzene (C6H6) | 0-100 | 10 | 15 | ppm/umol | |
| Chlorine dioxide (ClO2) | 0-10 | 1.5 | 3 | %LEL | |
| Combustible gas | Alkanes (methane, ethane, propane, etc.) | 0-100 | 20 | 50 | %LEL |
| Esters (methyl formate, ethyl acetate, etc.) | 0-100 | 20 | 50 | %LEL | |
| Olefins (ethylene, propylene, butylene, etc.) | 0-100 | 20 | 50 | %LEL | |
| Benzene (toluene, ethylbenzene, styrene, etc.) | 0-100 | 20 | 50 | %LEL | |
| Ethers (methyl ether, ether, etc.) | 0-100 | 20 | 50 | %LEL | |
| Ketones (acetone, methyl ethyl ketone, etc.) | 0-100 | 20 | 50 | %LEL | |