Portable Infrared Combustible Gas Detector
**Model Number:** 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 fast response time. The device is ideal for environments where safety is a top priority, such as underground coal mines, chemical plants, oil refineries, and confined spaces.
The JHB4 model features a large OLED display, internal audible and visual alarms, and a simple push-button interface. It continuously monitors the surrounding gas levels and alerts users when concentrations exceed pre-set low or high thresholds. Additional features include adjustable alarm setpoints, calibration gas values, and a peak/hold function to capture the highest reading during a shift. A unique flip-cap calibration adapter ensures quick and easy calibration without the need for external tools.
The device is lightweight at just 102g, making it easy to carry on a belt, in a pocket, or on a hard hat. It is built to withstand harsh conditions with an IP67 rating and Exibd I explosion protection. The bright backlight display enhances visibility in low-light settings, while the two-year warranty from the date of manufacture ensures long-term reliability.
**Key Features & Benefits:**
- **Sensor Lifetime:** Up to 10 years with NDIR infrared technology
- **Warranty:** 2-year coverage for reduced total cost of ownership
- **Display:** High-brightness OLED screen for clear readings
- **Calibration:** User-friendly calibration via built-in flip-cap adapter
- **Portability:** Compact size and light weight for easy wear
- **Alarms:** Adjustable low and high setpoints for customized monitoring
- **Safety:** IP67 rating and Exibd I certification for safe use in hazardous areas
**Technical Specifications:**
| Feature | Details |
|-------------------|-------------------------------------------------------------------------|
| Sensor | NDIR Infrared |
| Sensor Life | 10 Years |
| Range | 0–5.0%vol or 0–100%vol |
| Accuracy | Low: ±1.0%vol / High: ±3.0%vol (for 0–5.0%)
Low: ±5%vol / High: ±10%vol (for 0–100%vol) | | Resolution | 0.01%vol (for 0–5.0%)
1%vol (for 0–100%vol) | | Power Source | 1500mAh Lithium Rechargeable Battery | | Operating Temperature | -20°C to 50°C (-4°F to 122°F) | | Humidity Range | 0–95% RH (typical) | | Alarms | Adjustable low and high alarm setpoints | | Dimensions | 93mm × 49mm × 22mm | | Weight | 102g | This gas detector is widely used in mining operations, fire safety, industrial inspections, and other hazardous environments where real-time detection of combustible gases is essential. With its durable construction, advanced features, and user-friendly design, the JHB4 is a trusted solution for professionals who prioritize safety and performance.
Low: ±5%vol / High: ±10%vol (for 0–100%vol) | | Resolution | 0.01%vol (for 0–5.0%)
1%vol (for 0–100%vol) | | Power Source | 1500mAh Lithium Rechargeable Battery | | Operating Temperature | -20°C to 50°C (-4°F to 122°F) | | Humidity Range | 0–95% RH (typical) | | Alarms | Adjustable low and high alarm setpoints | | Dimensions | 93mm × 49mm × 22mm | | Weight | 102g | This gas detector is widely used in mining operations, fire safety, industrial inspections, and other hazardous environments where real-time detection of combustible gases is essential. With its durable construction, advanced features, and user-friendly design, the JHB4 is a trusted solution for professionals who prioritize safety and performance.
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