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4-in-1 Gas Detector-HRP-B1000-C
4-in-1 Gas Detector-HRP-B1000-C
4-in-1 Gas Detector-HRP-B1000-C
4-in-1 Gas Detector-HRP-B1000-C
4-in-1 Gas Detector-HRP-B1000-C
4-in-1 Gas Detector-HRP-B1000-C
4-in-1 Gas Detector-HRP-B1000-C
4-in-1 Gas Detector-HRP-B1000-C

4-in-1 Gas Detector-HRP-B1000-C

The equipment features an integrated and compact design, making it lightweight and easy to operate. It supports both wearable and one-handed operation. Equipped with four imported independent sensors, it ensures accurate detection of each gas without cross-interference. It also features a high-definition LCD backlit display screen that displays the concentration data of the four gases in real time. With multi-level intelligent alarms and long battery life, it can adapt to harsh industrial environments such as high temperature, high humidity, and dust, fully protecting the lives of operators.

  • SIL 2 Certification

  • CE Certification
  • Ex Certification
  • PA Certification
  • FC Certification
  • High precision

  • Global Shipping

  • Customized

  • 24*7 support

  • OEM/ODM

  • Features
  • Parameters
  • Accessories
  • Gases and Ranges

The HRP-B1000-C is a portable four-in-one gas detector, a standard emergency detection device in the industrial safety field. Designed specifically for confined space operations and emergency rescue personnel, it can detect four core gases: flammable gas (LEL), carbon monoxide (CO), hydrogen sulfide (H₂S), and oxygen (O₂). This comprehensive safety solution is suitable for complex environments and is an essential piece of equipment for high-risk industries. It effectively prevents safety accidents such as gas poisoning, explosions, and oxygen deficiency.

1.Multi-gas synchronous monitoring: it can be flexibly configured to detect combustible gas, oxygen, carbon monoxide, hydrogen sulfide and other gases at the same time to meet the needs of different high-risk environments.
2.Specific gas detection: for specific industries, such as chemical industry and refrigeration, there are special models for detecting dichloromethane and halogen gas, which have high sensitivity and strong anti-interference ability.
3.Pump-suction sampling: Some models have built-in sampling pumps, which can be used to remotely sample and detect hard-to-reach areas (such as the inside of pipelines and storage tanks) through probe pipes, thus expanding the detection range.

  • 4-in-1-Gas-Detector-HRP-B1000-C-Real-shot-1
  • 4-in-1-Gas-Detector-HRP-B1000-C-Real-shot-2
  • 4-in-1-Gas-Detector-HRP-B1000-C-Real-shot-3

Portable Four-in-One Gas Detector

Product Overview

Portable four-in-one gas detector is a personal gas monitoring device specially designed for industrial safety protection, which can detect four dangerous gases at the same time. Common detection combinations include combustible gas (LEL), oxygen (O₂), carbon monoxide (CO) and hydrogen sulfide (H₂S), which can provide workers with comprehensive protection against toxic gas, hypoxia, oxygen enrichment and explosion risk.

The equipment adopts advanced sensor technology and has the functions of real-time monitoring, multiple alarms and data recording, which can continuously detect the change of gas concentration in the environment and give an alarm in time when dangerous situations occur. The product is small in size, easy to carry and easy to operate. It is widely used in oil and gas, petrochemical industry, mines, sewage treatment, fire rescue, confined space operation and other fields, and is an important equipment to ensure the safety of industrial site personnel.


Principle of Operation

The detector adopts natural diffusion sampling method to continuously monitor the surrounding air environment. The target gas enters the detection area of the sensor through diffusion, and various sensors independently measure the corresponding gas.

The signal collected by the sensor is converted into accurate concentration data after analysis and calculation by the internal microprocessor, and displayed on the LCD screen in real time.

When the concentration of any gas exceeds the preset alarm value, or the oxygen concentration exceeds the safe range, the equipment will immediately start the triple alarm system of sound, light and vibration to remind the staff to take timely measures to reduce the safety risk.

According to different application requirements, the equipment can be configured as follows:

  • Electrochemical sensor (oxygen, toxic gas)
  • Catalytic combustion sensor (combustible gas)
  • Infrared sensor (hydrocarbon gas, carbon dioxide)
  • PID photoionization sensor (volatile organic compound VOC)

Main Application Industries

Oil and Gas Industry

It is widely used in drilling platforms, refineries, LNG receiving stations, natural gas transmission and distribution stations, storage tank areas, oil and gas pipelines and other places, which can effectively monitor the risks of combustible gas leakage and toxic gas and ensure the safety of workers.

Petrochemical Industry

It is suitable for chemical production equipment, reaction kettle area, storage tank area, dangerous chemical warehouse and other environments, and can deal with various gas risk factors at the same time to improve the safety management level of enterprises.

Sewage Treatment and Environmental Protection Industry

In sewage treatment plants, pumping stations, underground pipe networks and landfill sites, the concentration changes of dangerous gases such as hydrogen sulfide, methane and oxygen can be monitored in real time to prevent poisoning and explosion accidents.

Mine and Tunnel Engineering

It is suitable for coal mine, metal mine, underground tunnel construction and other scenes, and can monitor the concentrations of methane, carbon monoxide and oxygen in real time to reduce the risk of underground operation.

Fire Rescue and Emergency Response

It is widely used in hazardous chemical accident disposal, gas leakage detection, fire site assessment and emergency rescue operations, providing reliable gas detection guarantee for rescuers.

Confined Space Operation

It is suitable for storage tanks, underground pipe corridors, inspection wells, sewers, closed containers and other confined space environments. It is an important safety equipment for personnel to detect before entering and continuously monitor during operation.

Electric Power and Public Utilities

It can be used for the maintenance of power plants, substations and public facilities, and real-time monitoring of dangerous gases that may be generated during industrial operation.


Product Advantage

Simultaneous Detection of Four Gases

A single device can monitor combustible gas, oxygen, carbon monoxide and hydrogen sulfide at the same time, providing all-round gas safety protection for workers.

High Precision Sensor Technology

The industrial-grade high-performance sensor has the characteristics of high sensitivity, fast response and good long-term stability, ensuring accurate and reliable detection results.

Real-Time Continuous Monitoring

Continuous detection of gas concentration changes in the environment around the clock helps staff find potential dangers in time and avoid accidents.

Triple Alarm Protection

It integrates sound alarm, bright LED flash alarm and vibration alarm, and can find alarm information in time even in high noise environment.

High Definition LCD Screen

Equipped with a large backlit LCD display screen, it can simultaneously display various gas concentrations, alarm status, battery power and equipment operation information, making reading more intuitive and convenient.

Rugged and Durable Industrial Design

Made of high-strength engineering materials, it has excellent impact resistance, dustproof and waterproof performance, and can adapt to various complex and harsh industrial environments.

Super Long Endurance

Low-power circuit design combined with high-capacity rechargeable lithium battery can meet the needs of long-term continuous operation and reduce the impact of frequent charging.

Data Storage and Event Recording

Support gas concentration record, alarm record, calibration record and operation log storage, which is convenient for safety management, equipment maintenance and accident analysis.

Intrinsically Safe Explosion-Proof Design

It meets the industrial explosion-proof safety requirements, can be safely applied to inflammable and explosive dangerous places, and meets the safety standards of petroleum, chemical industry, mining and other industries.

Simple Operation and Convenient Maintenance

Humanized operation interface, simple calibration process, reducing training cost and improving on-site use efficiency.


Product Features

  • Simultaneous monitoring of four dangerous gases
  • Detection of combustible gas (LEL), oxygen (O₂), carbon monoxide (CO) and hydrogen sulfide (H₂S)
  • Real-time concentration display
  • Triple alarm of sound, light and vibration
  • High performance industrial-grade sensor
  • Large-capacity rechargeable lithium battery
  • Alarm and event data recording
  • IP66/IP67 protection grade
  • Intrinsically safe explosion-proof design
  • Small and light, strong and durable

Provide Reliable Guarantee for Dangerous Environment Operation

Portable four-in-one gas detector can provide continuous, accurate and reliable gas monitoring and early warning function in petroleum refining plant area, chemical production workshop, underground mine, sewage treatment facilities and confined space working environment. Through advanced sensor technology, rapid alarm mechanism and durable industrial design, the risks of gas leakage, poisoning, hypoxia and explosion are effectively reduced, and the safety production of enterprises and the health of personnel are escorted.

Single Gas Detec

  • Detected Gase: Combustible gases, toxic and hazardous gases, oxygen, and TVOC
  • Detection Principle: Catalytic combustion, electrochemical, NDlR,PID,semiconductor
  • Detection Mode: natural diffusion
  • Measuring Range: 0-1000 ppm; 0-100% LEL; 0-100% VOL
  • Measurement Accuracy: ≤ 3% F.S.
  • Response Time: Combustible gases< 30 s; Toxic gases < 60 s
  • Alarm Modes: Audible, visual, and vibration alarms with status indicators
  • Data Storage: 1000 records
  • Setting Method: Button
  • Power supply: DC 3.7V
  • Battery Type: 2000 mAh rechargeable lithium battery
  • Charging Time: 6-8 hours
  • Battery Runtime: >8H
  • Operating Temperature: -10℃~+55℃
  • Relative Humidity: ≤ 95% (non-condensing)
  • Pressure Range: 86 kPa- 106 kPa
  • Explosion-Proof Type: Intrinsic Safety
  • Explosion-Proof Rating: II 2G Ex db IIC T6 Gb
  • Ingress protection: IP66
  • Enclosure Material: ABS engineering plastic
  • Dimensions: 145*70*35 mm
  • Product Weight: 250 g
4-in-1-Gas-Detector-HRP-B1000-C-Real-shot
  • Usb-cable

Usb cable(Standard):

This Micro USB cable features thickened copper cores and high-density nylon braiding, offering excellent resistance to bending and abrasion for long-lasting durability.

  • Portable-Calibrator-Calibration-Gas-Cylinder

Portable Calibrator Calibration Gas Cylinder(Optional):

The high-precision standard gas supply device designed by portable gas detector is used for periodic calibration, zero correction and range verification of sensors in the field or laboratory to ensure the accuracy and reliability of long-term operation data of testing equipment.

  • Calibration-Hood

Calibration Hood(Standard):

The compact calibration cover designed by portable hand-held gas detector is used to quickly and accurately complete the zero calibration and range calibration of sensors on the equipment site. It is small, light and precise in structure, which ensures that the standard gas can cover the sensor probe efficiently and avoid the interference of ambient airflow. It is an indispensable professional accessory for daily maintenance and compliance testing.

  • Air-Sampling-Probe

Air Sampling Probe(Optional):

The high-precision and long-distance gas sampling extension tool designed by portable hand-held gas detector is used to safely and stably extend the probe into narrow space, high place, deep well, pipeline or dangerous area for remote gas detection, which greatly improves the operation safety and detection coverage.Typically used with sampling tubes.

  • Portable-hand-held-gas-detector-charger

Portable Hand-held Gas Detector Charger(Standard):

The high compatibility, safe and reliable charging solution designed by portable hand-held gas detector includes a standard two-pin plug power adapter and a USB-A to Micro-USB/Type-C data cable (matched according to the equipment interface), which ensures that the equipment can quickly recover power after field inspection, factory duty or emergency tasks, and ensures continuous and stable operation.

  • Extended-Sampling-Tube

Extended Sampling Tube(Optional):

The portable hand-held or pumping gas detector is designed with a high flexibility and corrosion resistance to extend the sampling catheter, which is used to extend the gas inlet of the equipment to the detection points that are difficult to directly contact, such as the depth of the pipeline, the equipment interlayer, the high vent, the inside of the closed container, etc., so as to realize "remote accurate sampling" and greatly improve the detection coverage and operation safety.

  • Water-vapor-and-dust-filter

Water Vapor and Dust Filter(Optional):

Blocks solid particles from entering the detector's gas path, preventing blockage and avoiding particle adhesion to the sensor surface, which could cause sensor poisoning, decreased sensitivity, slowed response, or even permanent failure. It also avoids physical interference from dust, ensuring the sensor only contacts the measured gas, thus guaranteeing measurement accuracy.

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
Ethane C₂H₆ 3.0  49  Cyclohexane CH₂ (CH₂)₄CH₂ 1.2 
Ethanol C₂H₅OH 3.4  50  Cyclohexanol CH₂ (CH₂)₃CHOHCH₂ 1.2 
Ethylene C₂H₄ 2.8  51  Cyclohexanone CH₂ (CH₂)₃COCH₂ 2.8 
Hydrogen H₂ 4.0  52  Cyclopropane CH₂CH₂CH₂ 2.4 
Methane CH₄ 5.0  53  Decane C₁₀H₁8 0.7 
Methanol CH₃OH 5.5  54  Cyclohexene CH₂ (CH₂)₃CHCHCH₂ 1.2 
Acetylene C₂H₂ 2.5  55  Diacetone Alcohol (CH₃)₂COHCH₂COCH₃ 1.8 
Propanol C₃H₇OH 2.5  56  Di-n-butyl Ether C₄H₉OC₄H₉ 0.9 
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 

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