Dual sensors and automatic range switching
The instrument switches between a 0–1000 ppm trace range and a 0.1–4% Vol range for hydrogen leak inspection.
Product ImageRD-3 Hydrogen Leak Detector
HANDHELD HYDROGEN LEAK DETECTOR
RD-3 Hydrogen Leak Detector
Dual sensors and automatic range switching•Pump-suction sampling•Fast response•Audible and visual alarms
Measuring ranges0–1000 ppm / 0.1–4% Vol
Measurement methodPump suction, 200 mL/min
Response time<2 s
Resolution1 ppm
Battery endurance6 h
Probe length320 mm
HOW THE PRODUCT WORKS
Dual-range hydrogen leak detection for portable inspections
The RD-3 Hydrogen Leak Detector is a handheld instrument designed to locate hydrogen leaks in production, refueling, fuel-cell and laboratory environments. Its dual-sensor design automatically switches between a 0–1000 ppm trace range and a 0.1–4% Vol range, combining low-concentration sensitivity with a wider measurement range for field inspection.
A pump-suction sampling system draws a sample at 200 mL/min through a 320 mm probing rod. The instrument displays readings on an LCD, supports peak detection and data hold, and provides audible and visual alarms when a preset threshold is reached. A rechargeable lithium battery supports portable operation for up to 6 hours under the specified conditions.
Plan a suitable leak inspection
For a configuration review, share the target range, sampling access, expected inspection duration, site classification, and operating temperature and humidity. The product materials list an Ex ib IIC T3 marking; confirm the exact certificate scope and suitability with the manufacturer and the applicable site requirements before use in a hazardous area. These details help select a handheld hydrogen leak detector for plant, laboratory, or fuel-cell inspection.
Key product features
Pump-suction sampling
An integrated pump samples gas at a specified flow rate of 200 mL/min through the probe.
Fast response and measurement aids
The reference specifies response below 2 seconds and lists automatic zero correction, peak detection, data hold and quick return to zero.
Readable alarm thresholds
An LCD and auxiliary LEDs indicate alarm thresholds at 10 ppm, 100 ppm, 1000 ppm and 1% Vol.
Audible and visual alarms
The instrument provides audible and visual alarms with different frequencies for alarm conditions; the alarm sound can be manually silenced.
Rechargeable portable operation
A 2300 mAh, 3.7 V lithium battery provides approximately 6 hours of endurance; battery-level and low-voltage prompts support field use.
User operation protection
The product supports user password changes for operation protection.
APPLICATIONS
Typical applications
Hydrogen production stations
Use the handheld detector during site inspection and equipment leak checks.
Hydrogen refueling stations
Support portable leak inspection around hydrogen station equipment.
Fuel-cell production workshops
Check hydrogen-related equipment and work areas during production and maintenance.
Hydrogen energy bus operations
Use for field leak inspection in hydrogen vehicle service and operating environments.
Hydrogen testing laboratories
Carry out portable hydrogen leak checks in testing and laboratory facilities.
RD-3 Hydrogen Leak Detector technical specifications and integration requirements
| Parameter | Specification |
|---|---|
| Model | RD-3 |
| Measured gas | Hydrogen (H₂) |
| Measuring ranges | 0–1000 ppm; 0.1–4% Vol |
| Measurement error | ±30% of displayed value (ppm range); ±5% F.S. (vol% range) |
| Response time | <2 s |
| Resolution | 1 ppm |
| Detection type | Pump suction, 200 mL/min flow rate |
| Display | LCD with auxiliary alarm-threshold LEDs |
| Battery | Rechargeable lithium battery, 2300 mAh, 3.7 V |
| Endurance time | 6 h |
| Operating temperature | −20 to +55 °C |
| Storage temperature | −20 to +60 °C |
| Ambient humidity | 20–80% RH, non-condensing |
| Probing rod length | 320 mm |
| Instrument dimensions | 169 × 60 × 28 mm (L × W × H) |
| Instrument weight | Approx. 400 g |
| Explosion-proof marking | Ex ib IIC T3 |
| Charger input | 220–240 VAC, 50/60 Hz, 0.3 A |
| Charger output voltage | 5.0 V |
Confirm the measuring range, output, power supply, and process conditions for your application when requesting a quotation.
What to include in your inquiry
For a project-specific RD-3 Hydrogen Leak Detector quotation and application review, share your target measurement range, gas composition, operating temperature and humidity, pressure, installation method, required signal output, and project location. This helps our team assess the right configuration for your hydrogen monitoring or gas analysis system.
Send your application detailsFAQ
Frequently asked questions about RD-3 Hydrogen Leak Detector selection and applications
Find guidance on RD-3 Hydrogen Leak Detector measuring range, installation, operating conditions, and integration with hydrogen monitoring systems.
What ranges does the RD-3 Hydrogen Leak Detector cover?
The product materials list 0–1000 ppm and 0.1–4% Vol ranges with dual sensors.
How does the RD-3 collect a gas sample?
It uses pump-suction sampling at a specified flow rate of 200 mL/min.
How quickly does the RD-3 respond?
The listed response time is under 2 seconds; resolution is 1 ppm.
How long can the RD-3 operate on its battery?
The listed 2300 mAh, 3.7 V rechargeable lithium battery supports approximately 6 hours of operation.
What should I confirm before using it in a hazardous area?
Confirm the exact explosion-proof certificate, Ex marking, site zone and applicable local requirements with the manufacturer and site safety team.
What information helps with a product inquiry?
Share the application, target range, sampling access, site classification, expected inspection duration and operating temperature/humidity.
Discuss RD-3 Hydrogen Leak Detector for your application
Send your operating conditions and project requirements for a technical review and quotation.
Contact the Sales Team