How to Choose Gas Detector for Industrial Use?
Selecting the appropriate gas detector is crucial for ensuring workplace safety in industrial environments. The following guide will help you understand key factors to consider, such as gas type, detection range, and resolution options. GasDog industrial gas detectors (GD200/300/400/500/600/700) are designed to monitor various gases commonly found in industrial settings, including Ammonia (NH3), Carbon Dioxide (CO2), Carbon Monoxide (CO), Chlorine (Cl2), Formaldehyde (CH2O), Methane (CH4), Hydrogen Sulfide (H2S), and more. With ATEX and CE certifications, these gas monitors provide real-time alerts through sound & light alarms, ensuring a quick response to gas leaks. Whether you need a portable gas detector for confined space entry or a fixed gas detection system for continuous monitoring, GasDog offers a variety of models to meet your specific industrial safety needs. Explore the options below to find the best gas detector for your application.
Portable Gas Detector vs. Fixed Gas Detector
| Feature | Portable Gas Detector | Fixed Gas Detector |
| Series | GD200/400/500/600 | GD300/700 |
| Detection Gas | Single gas & multi gas | Single gas & multi gas |
| Detection Method | Mobile, portable gas detection | Continuous monitoring in a fixed location |
| Installation | Handheld or clip-on for personal use | Mounted on walls, ceilings, or equipment |
| Power Supply | Rechargeable battery | External power supply (12-36V DC) |
| Detection Area | Monitors the immediate surrounding area | Monitors a specific area or zone |
| Alarm Type | Sound, vibration, and light alarms | Sound, light, and relay output for external control |
| Signal Output | No external signal output | 4-20mA & RS485, 1NO+1NC relay output |
| Application | Personal safety, emergency response and fieldwork | Industrial plants, warehouses and confined spaces |
GasDog Industrial Gas Detectors
Built-in pump for rapid gas suction, ensuring a fast response time Clear LCD screen can display the monitored gas type and gas unit ABS plastic makes the detector anti-slip, waterproof, dustproof, and explosion-proofPortable Gas Detector, Single Gas Monitor
Handheld gas detector is manufactured with an advanced sensor and audible, visual and vibration alarms to provide precise measurement of combustible gases, VOC gases and toxic gas detection.
Portable single gas monitors can detect Carbon Monoxide (CO), Carbon Dioxide (CO2), H2S, Hydrogen (H2), Oxygen (O2), Natural gas, Ammonia (NH3), Methane, Ozone, Chlorine, Formaldehyde, and more.
GasDog yellow gas detectors come with ATEX, CE and IP67 protection certificates, and optional 480mm probes, data logging function, & calibration kits, making them the best choice for single or multi-gas detectors.
GD200 Series Portable Gas Detectors
| SKU | Measure Range | Resolution |
| GD200-C2H2 | 0-100% LEL | 1% LEL |
| GD200-NH3 | 0-10/20/50/100/200/500/1000/2000/5000ppm | 0.01ppm/0.1ppm/1ppm |
| GD200-C6H6 | 0-1/5/10/20/50/100/200/500/1000/2000/5000/10000ppm | 0.001ppm/0.01ppm/0.1ppm/1ppm |
| GD200-CO2 | 0-1000/2000/5000/10000/20000/50000ppm, 0-10%/20%/30%/50%/100% VOL | 1ppm, 0.01% VOL |
| GD200-CO | 0-10/20/50/100/500/1000/2000ppm | 0.001ppm/0.01ppm/1ppm |
| GD200-Cl2 | 0-5/10/20/50/100/200ppm | 0.001ppm/0.01ppm/0.1ppm |
| GD200-ClO2 | 0-1/5/10/20/50/100ppm | 0.001ppm/0.01ppm/0.1ppm |
| GD200-C2H4 | 0-10/20/50/100/500/1000/2000ppm | 0.001ppm/0.01ppm/0.1ppm/1ppm |
| GD200-F2 | 0-100% LEL | 1% LEL |
| GD200-CH2O | 0-10/20/50/100/500/1000ppm | 0.01ppm/0.1ppm/1ppm |
| GD200-N2H4 | 0-1ppm | 0.01ppm |
| GD200-HC | 0-100% LEL | 1%LEL |
| GD200-H2 | 0-10/20/100/500/1000/2000/3000/5000/10000/20000/40000ppm, 0-4% VOL | 0.001ppm/0.01ppm/0.1ppm/1ppm, 0.001% VOL |
| GD200-HCL | 0-10/20/50/100/200/500/1000/2000ppm | 0.01ppm/0.1ppm/1ppm |
| GD200-HCN | 0-10/20/50/100ppm | 0.01ppm/0.1ppm |
| GD200-HF | 0-1/5/10/50ppm | 0.001ppm/0.01ppm |
| GD200-H2S | 0-5/10/20/50/100/200/500/1000/2000ppm | 0.001ppm/0.01ppm/0.1ppm/1ppm |
| GD200-CH4 | 0-100% LEL, 0-50%/100% VOL | 1% LEL, 0.01% VOL |
| GD200-CH3Br | 0-50/100/200/500/1000/2000/3000ppm | 0.1ppm/1ppm |
| GD200-NO | 0-20/50/100/250/500/1000ppm | 0.01ppm/0.1ppm/1ppm |
| GD200-N2 | 0-99.99%/100% VOL | 0.01% VOL |
| GD200-NO2 | 0-20/50/100/500/1000ppm | 0.01ppm/0.1ppm/1ppm |
| GD200-NOX | 0-1/5/10/20/50/100/250/500/1000ppm | 0.001ppm/0.01ppm/0.1ppm/1ppm |
| GD200-O2 | 0-25%/30%/100% VOL | 0.01% VOL |
| GD200-O3 | 0-1/5/10/20/50/100/200/500/1000/2000ppm | 0.001ppm/0.01ppm/0.1ppm/1ppm |
| GD200-COCl2 | 0-1/5/10ppm | 0.001ppm |
| GD200-PH3 | 0-10/20/50/100/500/1000/2000/3000ppm | 0.01ppm/0.1ppm/1ppm |
| GD200-SO2 | 0-20/50/100/500/1000ppm | 0.01ppm/0.1ppm/1ppm |
| GD200-SF6 | 0-1000/2000/3000ppm | 1ppm |
Fixed Gas Detector, Industrial Gas Monitor
Specialized sensors are built into fixed gas detectors to detect the presence of specific gases. Different sensors are used for different types of gases, such as Methane, Carbon Monoxide, Hydrogen Sulfide, Oxygen, etc.
Fixed gas detectors provide continuous monitoring of the surrounding air to ensure timely detection of gas leaks or abnormal levels. This continuous monitoring helps in identifying potential hazards before they reach dangerous levels.
GasDog fixed gas detectors feature sound & light alarms, along with 4-20mA and RS485 signal outputs. They also include 1NO+1NC relay outputs (24V, 100mA), which activate when the gas concentration exceeds a preset threshold.
Digital display screen shows gas leak concentration readings in real time, ensuring safety in industrial environments. Installation methods of wall-mounted, piping type, and flow-type are available according to the detected environment. Infrared controller can remotely control the alarm point setting, zero calibration and address modification. Audible and visual alarms activate and flash to alert when the gas concentration reaches the alarm point. GD300 Series Fixed Gas Detectors
| SKU | Measure Range | Resolution |
| GD300-NH3 | 0-50/100/200/500/1000/2000/5000ppm | 0.01ppm/0.1ppm/1ppm |
| GD300-C6H6 | 0-1/10/50/100/200/1000/2000/5000/10000ppm | 0.001ppm/0.01ppm/0.1ppm/1ppm |
| GD300-CO2 | 0-1000/2000/5000/9999ppm, 0-2/5/10/20/25/30/50/100% VOL | 0.1ppm/1ppm, 0.001%/0.01%/0.1% VOL |
| GD300-CO | 0-10/20/50/100/500/1000/2000ppm | 0.01ppm/0.1ppm/1ppm |
| GD300-Cl2 | 0-5/10/20/50/100ppm | 0.001ppm/0.01ppm/0.1ppm |
| GD300-ClO2 | 0-1/5/10/20/50/100ppm | 0.001ppm/0.01ppm/0.1ppm |
| GD300-C2H4 | 0-10/20/50/100/500/1000/2000ppm | 0.01ppm/0.1ppm/1ppm |
| GD300-CH2O | 0-10/20/50/100/500/1000ppm | 0.01ppm/0.1ppm/1ppm |
| GD300-HC | 0-100% LEL | 1% LEL |
| GD300-H2 | 0-10/20/500/1000/2000/5000/9999ppm, 0-2/4% VOL, 0-100% LEL | 0.1ppm/1ppm, 0.001% VOL/1% LEL |
| GD300-HCL | 0-10/20/50/100/200ppm | 0.01ppm/0.1ppm |
| GD300-HCN | 0-10/20/50/100ppm | 0.01ppm/0.1ppm |
| GD300-H2S | 0-5/20/50/100/200ppm | 0.001ppm/0.01ppm/0.1ppm |
| GD300-CH4 | 0-50/100% VOL, 0-100% LEL | 0.01%/0.1% VOL, 1% LEL |
| GD300-NO | 0-1/5/10/20/50/100/250/500/1000ppm | 0.001ppm/0.01ppm/0.1ppm/1ppm |
| GD300-N2 | 0-99.99/0-100% VOL | 0.01%/0.1% VOL |
| GD300-NO2 | 0-1/5/10/20/50/100/500/1000ppm | 0.001ppm/0.01ppm/0.1ppm/1ppm |
| GD300-NOX | 0-1/5/10/20/50/100/250/500/1000ppm | 0.001ppm/0.01ppm/0.1ppm/1ppm |
| GD300-O2 | 0-25/30/100% VOL | 0.01//0.1% VOL |
| GD300-O3 | 0-1/5/10/20/50/100ppm | 0.001ppm/0.01ppm/0.1ppm |
| GD300-PH3 | 0-10/20/50/100/500/1000/2000/3000ppm | 0.01ppm/0.1ppm/1ppm |
| GD300-SO2 | 0-1/5/10/20/50/100/500/1000ppm | 0.001ppm/0.01ppm/0.1ppm/1ppm |
GD400, 500 and 600 Portable Series Gas Detectors
| SKU | Measuring Range | Resolution |
| GD400-H2 | 0-40000ppm, 0-4% VOL | 1ppm, 0.001% VOL |
| GD400-H2S | 0-200ppm | 0.001/0.1ppm |
| GD400-4GAS | CO (0-2000ppm), H2S (0-500ppm), O2 (0-30% VOL), EX (0-100% LEL) | 1ppm/0.1ppm/0.1% VOL/1% LEL |
| GD400-5GAS | O2 (0-30% VOL), EX (0-100% LEL), CO (0-1000ppm), H2S (0-100ppm), VOC (0-5000ppm) | Contact Us |
| GD500-CO | 0-2000ppm | 1ppm |
| GD500-4GAS | CO (0-1000ppm), H2S (0-100ppm), O2 (0-30% VOL), EX (0-100% LEL) | 1ppm/0.1ppm/0.1% VOL/1% LEL |
| GD600-GAS | NO2 (0-10ppm), SO2 (0-10ppm), CO (0-20ppm), O3 (0-10ppm) | 0.001ppm |
GD700 Series Fixed Gas Detectors
GD700 industrial fixed gas detectors are equipped with advanced sensors, remote control, and sound & light alarms, delivering effective gas monitoring solutions to enhance workplace safety and ensure environmental protection.
These wall mounted gas monitors provide 24-hour real-time online monitoring of gas leaks and include an automatic verification and zero calibration function to enhance detection accuracy and reliability.
| SKU | Measuring Range | Resolution |
| GD700-NH3 | 0-50/100/200/500/1000/2000/5000ppm | 0.01ppm/0.1ppm/1ppm |
| GD700-CO2 | 0-1000/2000/5000/9999ppm, 0-2%/5%/10%/20%/25%/30%/50%/100% VOL | 1ppm, 0.001% VOL/0.01% VOL/0.01% VOL/0.1% VOL |
| GD700-CO | 0-10/20/50/100/500/1000/2000ppm | 0.01ppm/0.1ppm/1ppm |
| GD700-Cl2 | 0-5/10/20/50/100ppm | 0.001ppm/0.01ppm/0.1ppm |
| GD700-ClO2 | 0-1/5/10/20/50/100ppm | 0.001ppm/0.01ppm/0.1ppm |
| GD700-C2H4 | 0-10/20/50/100/500/1000/2000ppm | 0.01ppm/0.1ppm/1ppm |
| GD700-CH2O | 0-10/20/50/100/500/1000ppm | 0.01ppm/0.1ppm/1ppm |
| GD700-H2 | 0-500/1000/2000/5000/10000/20000/40000ppm, 0-2%/4% VOL | 1ppm, 0.001% VOL |
| GD700-HCL | 0-10/20/50/100/200ppm | 0.01ppm/0.1ppm |
| GD700-HCN | 0-10/20/50/100ppm | 0.01ppm/0.1ppm |
| GD700-H2S | 0-5/20/50/100/200ppm | 0.001ppm/0.01ppm/0.1ppm |
| GD700-CH4 | 0-100% LEL, 0-50%/100% VOL | 1% LEL, 0.01%/0.1% VOL |
| GD700-N2 | 0-100% VOL | 0.01% VOL |
| GD700-NO | 0-1/5/10/20/50/100/250/500/1000ppm | 0.001ppm/0.1ppm/1ppm |
| GD700-NO2 | 0-1/5/10/20/50/100/500/1000ppm | 0.001ppm/0.01ppm/0.1ppm/1ppm |
| GD700-NOX | 0-1/5/10/20/50/100/250/500/1000ppm | 0.001ppm/0.01ppm/0.1ppm/1ppm |
| GD700-O2 | 0-30%/25% VOL | 0.01% VOL |
| GD700-PH3 | 0-10/20/50/100/500/1000/2000/3000ppm | 0.01ppm/0.1ppm/1ppm |
| GD700-SO2 | 0-1/5/10/20/50/100/500/1000ppm | 0.001ppm/0.01ppm/0.1ppm/1ppm |
| GD700-4GAS | CO (0-500/1000/2000ppm), H2S (0-100/200ppm), O2 (0-25%/30% VOL), LEL (0-100% LEL, 0-5%/50%/100% VOL) | CO (1ppm), H2S (0.1ppm), O2 (0.1%VOL), LEL ( 1% LEL, 0.001% VOL/0.01% VOL/0.1% VOL) |
| GD700-5GASNH3 | CO (0-500/1000/2000ppm), H2S (0-100/200ppm), O2 (0-25%/30% VOL), LEL (0-100% LEL), NH3 (0-50/100/200ppm) | CO (1ppm), H2S (0.1ppm), O2 (0.1%VOL), LEL ( 1% LEL), NH3 (0.1ppm) |
| GD700-5GASCO2 | CO (0-500/1000/2000ppm), H2S (0-100/200ppm), O2 (0-25%/30% VOL), LEL (0-100% LEL), CO2 (0-2000/5000/10000/20000/50000ppm, 20% VOL) | CO (1ppm), H2S (0.1ppm), O2 (0.1%VOL), LEL ( 1% LEL), CO2 (1ppm, 0.01% VOL) |
| GD700-5GASCL2 | CO (0-500/1000/2000ppm), H2S (0-100/200ppm), O2 (0-25%/30% VOL), LEL (0-100% LEL), CL2 (0-10/20/50/100ppm) | CO (1ppm), H2S (0.1ppm), O2 (0.1%VOL), LEL ( 1% LEL), Cl2 (0.1ppm) |
| GD700-5GASNO | CO (0-500/1000/2000ppm), H2S (0-100/200ppm), O2 (0-25%/30% VOL), LEL (0-100% LEL), NO (0-20/50/100/250ppm) | CO (1ppm), H2S (0.1ppm), O2 (0.1%VOL), LEL ( 1% LEL), NO (0.1ppm) |
| GD700-5GASNO2 | CO (0-500/1000/2000ppm), H2S (0-100/200ppm), O2 (0-25%/30% VOL), LEL (0-100% LEL), NO2 (0-20/50/100ppm) | CO (1ppm), H2S (0.1ppm), O2 (0.1%VOL), LEL ( 1% LEL), NO2 (0.1ppm) |
| GD700-5GASSO2 | CO (0-500/1000/2000ppm), H2S (0-100/200ppm), O2 (0-25%/30% VOL), LEL (0-100% LEL), SO2 (0-20/50/100ppm) | CO (1ppm), H2S (0.1ppm), O2 (0.1%VOL), LEL ( 1% LEL), SO2 (0.1ppm) |
| GD700-5GASVOC | CO (0-500/1000/2000ppm), H2S (0-100/200ppm), O2 (0-25%/30% VOL), LEL (0-100% LEL), VOC (0-100/200/500/1000/2000ppm) | CO (1ppm), H2S (0.1ppm), O2 (0.1%VOL), LEL ( 1% LEL), VOC (0.1ppm/0.1ppm/1ppm) |
***Note
- Gas detectors and alarms are sold directly by GasDog. Please consult the Limited Warranty, Shipping & Returns, Privacy Notice and Conditions of Use for related terms and conditions before purchasing.
- The latest price list is available. If you would like to purchase our gas detection equipment in bulk or require a custom model, please contact us at sales@gasdog.com.
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