Portable Infrared Combustible Gas Detector
Model No.: JHB4
Explosion Protection: Exibd I
Protection Grade: IP67
Dimensions: 93mm × 49mm × 22mm
Weight: 102g
Trademark: Topsky
Transport Package: Hard Plastic Case
Specification: SGS
Origin: Beijing, China
HS Code: 9027100090
This compact and reliable infrared combustible gas detector is designed for continuous and rapid detection of flammable gas concentrations in ambient air. It uses NDIR (Nondispersive Infrared) technology, offering high accuracy and quick response time. The device is ideal for monitoring methane (CH4) levels in the range of 0–5.0% or 0–100% vol.
Despite its small size, the JHB4 features a large OLED display, internal audible and visual alarms, and simple push-button operation. It continuously displays gas readings and alerts users when levels exceed preset low or high thresholds. Additional features include adjustable alarm setpoints, calibration gas values, and a user-selectable text-only display.
The unit includes a peak/hold function to capture the highest reading during a shift and a flip-cap calibration adapter for easy and fast calibration. It also has a 5-second delay shut-off protection to prevent accidental power-off. The detector comes with a two-year warranty from the date of manufacture.
Applications:
- Underground coal mines
- Mine safety inspections
- Firefighting operations
- Confined spaces
- Chemical industry
- Oil and gas environments
- Any area requiring combustible gas monitoring
Qualifications:
- Coal Mine Safety Certificate
- Explosion-proof Certificate
- Inspection Certification
Technical Specifications:
- Sensor: NDIR Infrared
- Sensor Life: Up to 10 years
- Range: 0–5.0%vol or 0–100%vol
- Accuracy: ±1.0%vol (low), ±3.0%vol (high) or ±5%vol (low), ±10%vol (high)
- Resolution: 0.01%vol or 1%vol
- Power Source: 1500mAh rechargeable lithium battery
- Operating Temperature: -20°C to 50°C (-4°F to 122°F)
- Humidity Range: 0–95% RH
- Alarms: Adjustable low and high setpoints
- Explosion Protection: Exibd I
- Protection Grade: IP67
- Dimensions: 93mm × 49mm × 22mm
- Weight: 102g
Key Features:
- Long-lasting sensor life
- Two-year warranty for cost-effective ownership
- High-brightness backlight display
- User-friendly calibration process
- Lightweight and portable design (102g)
- Built-in flip-cap calibration adapter
- OLED display showing gas concentration and battery life
- Customizable alarm settings
- High-visibility case for easy identification
- 5-second delay on/off button for accident prevention
Whether you're working in hazardous environments like coal mines, chemical plants, or confined spaces, the JHB4 provides accurate and reliable gas detection. Its compact form factor allows it to be easily carried on a belt, in a pocket, or on a hard hat, making it an essential tool for any safety professional.
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