


Fixed multi-gas detector HRP-T2000-G
This industrial-grade fixed gas monitoring equipment integrates multiple independent sensors and is designed for complex and high-risk scenarios where multiple gases coexist. It enables 24-hour synchronous and accurate monitoring, hierarchical early warning, and centralized management of 1-4 gases, reducing the deployment cost and maintenance difficulty of composite gas protection.
-
High precision
-
Global Shipping
-
Customized
-
24*7 support
-
OEM/ODM
- Features
- Parameters
- Accessories
- Gases and Ranges
The fixed multi-gas detector is an industrial-grade intelligent safety device integrating "multi-channel independent detection and a one-piece design." It supports flexible combination and customization, with sensor types selectable as needed: electrochemical/catalytic combustion/infrared. Its ppm-level high sensitivity allows for simultaneous detection of trace leaks of multiple gases, ensuring blind-spot-free monitoring. Equipped with a high-definition LCD color backlit display, it shows the concentration value, unit, alarm level, and device status of each gas in real-time, in separate columns. Supporting RS485 Modbus-RTU digital communication, it can seamlessly connect to gas alarm controllers, DCS systems, or cloud platforms, enabling centralized display, historical tracing, and control of multi-gas monitoring data. A single device can replace multiple single-gas devices, significantly reducing installation and wiring costs and space requirements.
1.One machine integrates four kinds of gas detection, without installing multiple devices, which greatly saves procurement cost and installation space.
2.LCD high-definition color screen displays four kinds of data on the same screen, and with color warning, the security status is clear at a glance.
3.Modular slot design supports flexible customization of gas combination, and sensors can be replaced and maintained independently.
4.The standard signal output is seamlessly connected to the control system, and the fan valve can be automatically linked to eliminate risks when alarming.
5.Industrial-grade explosion-proof and anti-corrosion shell, not afraid of harsh environment, to ensure long-term stable operation.
Single Gas Detec
- Detectable Gas Quantity: 1-4 gases
- Detected Gas Types: Combustible gas, toxic gas, O₂
- Detection Mode: Diffusion Type
- Measuring Range: PPM, %LEL, %VOL, mg/m³
- Measurement Accuracy: ±3% FS
- Response Time: Combustible gases < 30s (T90), Toxic gases < 60s
- Alarm Method: Audible and Visual Alarm, Status Indicator, Relay Output Signal
- Power Supply: DC 24V
- Output Signal: RS485
- Operating Temperature: -20℃ ~ +55℃
- Relative Humidity: ≤ 95% (no condensation)
- Explosion-Proof Rating: ll 2G Ex db lIC T6 Gb
- Ingress Protection: IP66
- Enclosure Material: Die-Cast Aluminum
- Dimensions: 195 × 185 × 95 mm
- Product Weight: <1000g
- Connection Thread: M20 × 1.5 or G1/2
- Mounting Method: Wall-Mounted

LED Display Screen(Optional, not required):
This gas concentration monitoring display screen features a dual-color display and connects to the host computer via RS485 protocol. It is primarily used to display real-time concentration data for various gases. The font colors differ between alarm and normal states. Normal state text is blue, while alarm state text is red.
Mounting Bracket(Optional selection):
High-strength metal mounting brackets are specifically designed for mounting gas monitors and actuators, and are typically used for wall-mounted installations.
Calibration Hood(Optional selection):
This is a standard calibration cover specially designed for HIREP series fixed gas detectors, which is used for fast and accurate gas concentration calibration and sensor testing on the equipment site. It has simple structure and good sealing performance, which ensures that the gas can evenly cover the sensor probe during calibration and avoid external interference.
Sampling Tube(Optional):
The sampling tube is made of polytetrafluoroethylene (PTFE), which is resistant to high temperatures and corrosion. It is usually used in conjunction with an external pump to safely and stably deliver the gas to be tested in the environment to the sensor analysis unit. It is suitable for remote sampling, detection in confined spaces, or gas monitoring under complex working conditions.
Explosion-Proof Cable Gland(Optional):
Used for the safe wiring connection of fixed gas detector, alarm host or electrical equipment in explosive environment. Its structure conforms to international explosion-proof standards, ensuring reliable sealing and electrical isolation in flammable and explosive gas environment and preventing accidents caused by sparks or high temperature.
Rain cover(Optional):
Prevents rainwater, dew, and spray water from entering the detector housing, circuitry, and sensor cavity, preventing short circuits due to moisture on the circuit board, reducing rainwater corrosion, and minimizing aging damage to the detector housing and probe caused by ultraviolet radiation. Significantly improves equipment durability, especially suitable for outdoor, open-air, and factory outdoor installation scenarios.
| Name | Chemical Formula | Lower Explosive Limit(Volume Fraction)in Air%VOL|Lower Limit | Serial No | Name | Chemical Formula | Lower Explosive Limit(Volume Fraction)in Air%VOL|Lower Limit | |
| 1 | Ethane | C₂H₆ | 3.0 | 49 | Cyclohexane | CH₂ (CH₂)₄CH₂ | 1.2 |
| 2 | Ethanol | C₂H₅OH | 3.4 | 50 | Cyclohexanol | CH₂ (CH₂)₃CHOHCH₂ | 1.2 |
| 3 | Ethylene | C₂H₄ | 2.8 | 51 | Cyclohexanone | CH₂ (CH₂)₃COCH₂ | 2.8 |
| 4 | Hydrogen | H₂ | 4.0 | 52 | Cyclopropane | CH₂CH₂CH₂ | 2.4 |
| 5 | Methane | CH₄ | 5.0 | 53 | Decane | C₁₀H₁8 | 0.7 |
| 6 | Methanol | CH₃OH | 5.5 | 54 | Cyclohexene | CH₂ (CH₂)₃CHCHCH₂ | 1.2 |
| 7 | Acetylene | C₂H₂ | 2.5 | 55 | Diacetone Alcohol | (CH₃)₂COHCH₂COCH₃ | 1.8 |
| 8 | Propanol | C₃H₇OH | 2.5 | 56 | Di-n-butyl Ether | C₄H₉OC₄H₉ | 0.9 |
| 9 | Propane | C₃H₈ | 2.2 | 57 | Dichlorobenzene | (C₆H₄)Cl₂ | 2.2 |
| 10 | Propylene | C₃H₆ | 2.4 | 58 | Diethylamine | (C₂H₅)₂NH | 1.7 |
| 11 | Toluene | C₆H₅CH₃ | 1.2 | 59 | Dimethylamine | (CH₃)₂NH | 2.8 |
| 12 | Xylene | C₆H₄ (CH₃)₂ | 1.0 | 60 | Dimethylaniline | (CH₃)₂C₆H₃NH₂ | 1.2 |
| 13 | Dichloromethane | C₂H₄Cl₂ | 5.6 | 61 | Dicyclohexylamine | (CH₂)₄O₂ | 1.9 |
| 14 | Dichloroethylene | C₂H₂Cl₂ | 6.5 | 62 | Ethylene Oxide | OCH₂CH₂CH₂ | 1.9 |
| 15 | Dichloropropane | C₃H₆Cl₂ | 3.4 | 63 | Diethyl Ether | C₂H₅OC₂H₅ | 1.8 |
| 16 | Diethyl Ether | C₂H₅OC₂H₅ | 1.7 | 64 | Ethyl Acetate | CH₃COOC₂H₅ | 2.1 |
| 17 | Dimethyl Ether | CH₃OCH₃ | 3.0 | 65 | Ethyl Acrylate | CH₂CHCO₂C₂H₅ | 1.7 |
| 18 | Formaldehyde | CH₂OCH | 4.0 | 66 | Styrene | C₆H₅C₂H₃ | 1.0 |
| 19 | Acetic Acid | CH₃COOH | 4.0 | 67 | Ethylene Oxide | CH₂CH₂O | 2.6 |
| 20 | Acetone | CH₃COCH₃ | 2.3 | 68 | Ethanethiol | C₂H₅SH | 2.3 |
| 21 | Acetyl Chloride | (CH₃CO)₂CH₂ | 1.7 | 69 | Ethyl Mercaptan | C₂H₅SCH₃ | 2.0 |
| 22 | Chloroform | CH₃COCl | 5.0 | 70 | Methyl Ethyl Ketone | C₃H₇COCH₃ | 1.8 |
| 23 | Acrylonitrile | CH₂CHCN | 2.8 | 71 | Ethylamine | C₂H₅NH₂ | 3.5 |
| 24 | Allyl Chloride | CH₂CHCH₂Cl | 3.2 | 72 | Gasoline | — | 0.9 |
| 25 | Methylacetylene | CH₃CCH | 1.7 | 73 | Kerosene | — | 0.7 |
| 26 | Amyl Acetate | CH₃CO₂C₅H₁1 | 1.0 | 74 | Turpentine | — | 1.8 |
| 27 | Aniline | C₆H₅NH₂ | 1.2 | 75 | Nitrobenzene | C₆H₅NO₂ | 1.8 |
| 28 | Benzene | C₆H₆ | 1.2 | 76 | Nitromethane | CH₃NO₂ | 7.1 |
| 29 | Benzaldehyde | C₆H₅CHO | 1.4 | 77 | Phenol | C₆H₅OH | 1.3 |
| 30 | Benzyl Chloride | C₆H₅CH₂Cl | 1.1 | 78 | Phenylacetylene | C₆H₅C₂H | 1.1 |
| 31 | Bromobenzene | C₆H₅CH₂Br | 2.5 | 79 | Ethylbenzene | C₆H₄C₂H₅ | 1.0 |
| 32 | Bromoethane | CH₃CH₂Br | 6.7 | 80 | Methyl Formate | HCOOC₂H₅ | 2.7 |
| 33 | Butadiene | CH₂CHCHCH₂ | 2.0 | 81 | p-Dioxane | C₄H₈O₂ | 2.0 |
| 34 | Butane | C₄H₁0 | 1.9 | 82 | Isobutane | i-C₄H₁0 | 1.8 |
| 35 | Butanol | C₄H₉OH | 1.8 | 83 | Naphthalene | C₁₀H₈ | 1.9 |
| 36 | Butylene | C₄H₈ | 1.6 | 84 | Nonane | CH₃ (CH₂)₇CH₃ | 0.7 |
| 37 | Butyraldehyde | C₃H₇CHO | 1.4 | 85 | Nonanol | CH₃ (CH₂)₇CH₂OH | 0.8 |
| 38 | Butyl Butyrate | C₃H₇COOC₄H₉ | 1.2 | 86 | Valeraldehyde | C₆H₁₀0 | 1.2 |
| 39 | Butyl Methyl Ketone | C₄H₉COCH₃ | 1.2 | 87 | Pentane | C₅H₁2 | 1.4 |
| 40 | Carbon Disulfide | CS₂ | 1.0 | 88 | Pentanol | C₅H₁₁OH | 1.2 |
| 41 | Chlorobenzene | C₆H₅Cl | 1.3 | 89 | Propylamine | C₃H₇NH₂ | 2.0 |
| 42 | Chlorobutane | C₄H₉CH₂Cl | 1.8 | 90 | Propyl Methyl Ketone | C₄H₉COCH₃ | 1.5 |
| 43 | Chloroethane | CH₃CH₂Cl | 3.8 | 91 | Pyridine | C₅H₅N | 1.7 |
| 44 | Chloroethylene | CH₂CHCl | 3.8 | 92 | Tetrahydrofuran | C₄H₈O | 2.0 |
| 45 | Chloromethane | CH₃Cl | 8.1 | 93 | Tetrahydrofurfuryl | C₅H₁₀O₂ | 1.5 |
| 46 | 2-Chloropropane | CH₃CHCICH₃ | 2.6 | 94 | Triethylamine | (C₂H₅)₃N | 1.2 |
| 47 | Cresol | C₆H₄OH | 1.1 | 95 | Trimethylamine | (CH₃)₃N | 2.0 |
| 48 | Cyclobutane | CH₂CH₂CH₂CH₂ | 1.8 | 96 | Trioxane | (CH₂O)₃ | 3.0 |
Send Message
Just drop us a line, call, or fill out the form. Our team will provide you with transparent pricing, detailed technical data sheets,very feasible solution, and genuine after-sales support—no hidden costs, no empty promises.

















