NA-8 Hydrogen Gas Detection Alarm Instrument
Portable hydrogen detection and alarm support for elevated leak inspection, hard-to-reach hydrogen systems, and industrial safety applications.

Overview
The NA-8 is a hydrogen gas detection alarm instrument designed for elevated hydrogen inspection. It uses a high-sensitivity sensor and a 6-meter telescopic probe rod, allowing operators to inspect hydrogen points up to 8 meters high during normal handheld use. It is especially suitable for hydrogen coolers, dryers, circulation fans, oil-water detectors, and hydrogen system pipe joints or interfaces that are difficult for ordinary leak detectors to reach.
Key Applications
Hydrogen-cooled generators
Hydrogen coolers and dryers
Circulation fan areas
Hydrogen system pipe joints and flanges
Elevated process equipment
Hard-to-reach hydrogen inspection points
Problems It Solves
Detects hydrogen leakage at elevated positions where standard handheld leak detectors are difficult to use
Helps inspect flanges, connectors, and hydrogen system joints that are beyond normal reach
Improves safety checks around hydrogen coolers, dryers, circulation fans, and other raised equipment
Supports faster leak confirmation in high-position inspection workflows across hydrogen systems
Key Features
Uses a high-performance catalytic combustion sensor for fast response, good measuring accuracy, and long service life
Includes a telescopic probe rod that helps users inspect hydrogen system flanges and interfaces at high positions
Supports elevated inspection up to 8 meters under normal handheld use conditions
Uses an OLED self-luminous display with high brightness, low power consumption, and good viewing from different angles
Allows adjustable calibration gas concentration and supports automatic or manual storage and lookup of measurement data
Includes over-range self-protection to help protect the sensor during demanding field use
Technical Specifications
Product name
NA-8 hydrogen gas detection alarm instrument
Detected gas
Hydrogen gas (H2)
Product type
Portable high-position hydrogen gas detector and alarm instrument
Typical use
Elevated hydrogen leak inspection for hydrogen system joints, flanges, coolers, dryers, fans, and other hard-to-reach points
Detection range
(0 to 100) %LEL
Low and high alarm range
Low: 10 to 25 %LEL; High: 25 to 80 %LEL
Detection method
Diffusion type
Detection principle
Catalytic combustion principle
Response time
Less than 30 seconds
Measurement accuracy
Less than or equal to plus or minus 5% F.S
Operation
Touch keys
Display
OLED self-luminous display
Working temperature
-20 to 55 °C
Ambient humidity
0 to 95 %RH, non-condensing
Storage temperature
0 to 40 °C
Probe rod
Telescopic rod, 6 m
Reach height
Up to 8 m during handheld inspection
Weight
Less than 1 kg
How It Fits Into a Complete Solution
The NA-8 can be used as part of a wider hydrogen safety solution together with fixed hydrogen sensors, gas analyzers, alarm systems, and process monitoring equipment. It is especially valuable where elevated leak inspection is needed alongside continuous fixed monitoring, such as in hydrogen-cooled generator systems, hydrogen production stations, and industrial hydrogen transfer equipment.
Industries
Power plants
Suitable for hydrogen-cooled generator systems and other elevated hydrogen equipment inspection points.
Hydrogen production
Helps inspect elevated connections, interfaces, and hydrogen handling points in production systems.
Hydrogen pipeline systems
Supports leak checks at high-position joints, flanges, and pipe interfaces that are difficult to access.
Industrial processing
Useful where hydrogen detection is needed around raised process equipment and operating structures.
Maintenance inspection
Designed for field personnel who need portable inspection tools for elevated leak checking.
High-standard safety checks
Supports routine and targeted hydrogen safety checks where normal handheld detectors may not reach.
FAQ
What is the NA-8 used for?
The NA-8 is used for high-position hydrogen leak detection and alarm inspection in industrial hydrogen systems.
What makes the NA-8 different from a normal handheld detector?
Its telescopic probe rod allows users to inspect elevated hydrogen points that standard handheld detectors usually cannot reach easily.
Where can the NA-8 be used?
It can be used around hydrogen-cooled generators, hydrogen coolers, dryers, circulation fans, pipe joints, flanges, and other raised hydrogen system points.
Is the NA-8 suitable for power industry hydrogen inspection?
Yes. It is especially suitable for elevated inspection points in hydrogen-related power industry applications.
What sensing principle does the NA-8 use?
The NA-8 uses a catalytic combustion sensing principle for hydrogen detection.
Tell Us Your Hydrogen Application
Contact us for quote support, datasheet details, lead time, and product matching for the NA-8 hydrogen gas detection alarm instrument, especially for elevated hydrogen inspection and hard-to-reach leak points.
Why Contact Our Team
- Nearly 30 years of hydrogen equipment manufacturing experience
- Support for hydrogen sensing, detection, analysis, and process projects
- Product recommendations based on your application needs
- Fast response for technical and sales inquiries
- Global support for industrial hydrogen applications