We Invent to Prevent.
We Invent to Prevent.
+39 030 353-14-23
Via Lorenzo Bernini 12, 25010 San Zeno Naviglio BS
Handheld laser methane detectors
Handheld Laser Methane Detectors for Demanding Industries
From natural gas and energy to utilities and infrastructure, many industries rely on portable methane detectors to keep their operations safe and efficient. Pergam’s laser-based solutions meet this need with precision, speed, and proven reliability. Powered by TDLAS technology, they detect methane remotely and selectively even at low concentrations. Built for demanding field conditions, Pergam detectors feature Bluetooth connectivity, integrate with the LeakFinder app, and can be mounted on vehicles or trolleys for large-area inspections, depending on the model.
Handheld laser methane detectors key features and advantages
-
Compact and lightweight build
for convenient everyday carrying -
Fast response and large measurement range
for efficient leak detection -
TDLAS technology
for methane-selective, interference-free measurements -
Explosion-proof design (LM Smart, LPD M-30/60, LM-100, SELMA Smart)
for safe use in hazardous environments -
High sensitivity
detects methane concentrations as low as 5 ppm×m -
Wavelength locking (SELMA Smart)
ensures long-term stability without regular calibration -
Dust- and moisture-proof construction
for reliable outdoor operation -
LeakFinder app (LM Smart)
for online leak quantification -
Bluetooth connectivity (LPD M-30/60, LM-100)
for data logging and transfer
As the beam passes through the gas, some of the light is absorbed by its molecules. A sensor then captures the reflected light, and by analyzing how much was absorbed, the system determines the gas concentration.
Laser methane detectors use TDLAS (Tunable Diode Laser Absorption Spectroscopy) technology to provide precise methane detection with a tunable diode laser. The laser emits a narrow beam of light at a wavelength that matches methane’s absorption profile. As the beam passes through the gas, some of the light is absorbed by the molecules. A sensor then captures the reflected light, and by analyzing how much is absorbed, the system calculates the methane concentration.
Laser methane detectors use TDLAS (Tunable Diode Laser Absorption Spectroscopy) technology to provide precise methane detection with a tunable diode laser. The laser emits a narrow beam of light at a wavelength that matches methane’s absorption profile. As the beam passes through the gas, some of the light is absorbed by the molecules. A sensor then captures the reflected light, and by analyzing how much is absorbed, the system calculates the methane concentration.
SELMA Dome G5 utilizes TDLAS (Tunable Diode Laser Absorption Spectroscopy) technology that enables precise gas detection using a tunable diode laser. The laser emits a narrow beam of light at a wavelength that matches the absorption profile of the target gas.
How laser methane detectors work
How laser methane detectors work
Applications for handheld laser methane detectors
Portable laser methane detectors are designed for operative monitoring of methane and natural gas leaks in urban environments as well as at gas storage facilities and along pipelines
Gas Distribution
System
System
Gas Distribution
Station
Station
Gas Processing
Plant
Plant
Gas Compression
Station
Station
Gas
Storage
Storage
Transportation Gas Pipeline
Applications for handheld laser methane detectors
Portable laser detectors are designed for operative monitoring of methane and natural gas leaks in urban environments as well as at gas storage facilities and along pipelines
-
Gas Distribution System
-
Transportation Gas Pipeline
-
Gas Distribution Station
-
Gas Processing Plant
-
Gas Compression Station
-
Gas Storage
CHOOSE YOUR DETECTOR
Complex of LaserMethane Smart detector & LeakFinder app
Quantify Leak Flow Rates and Generate Persuasive Evidence with the LeakFinder App
Laser Methane Smart features
Learn more Laser Methane Smart features
- Measuring sound and light blinking increase the visibility of the measuring point
- Stable measurement results with constant monitoring of oscillation wavelength by a built-in gas cell
- Remote, high-speed and selective methane detection up to 30 m (98.4 ft) with 0.1 s response time even at low concentrations thanks to TDLAS
- Self-testing and calibration, operates on standard rechargeable AA batteries instead of costly custom ones
- The LeakFinder app makes it easy to locate natural gas leaks with laser detectors and quantifies methane emissions online at the facility in grams per hour
Palm-sized remote laser methane detector
LPDM-15 – a compact and lightweight solution for professional methane detection. Small enough to take anywhere, yet strong enough to detect leaks instantly from up to 15 meters away. Powered by advanced TDLAS technology, it delivers ultra-fast response and highly selective measurements that react only to methane, even through glass. With a pinpoint targeting laser, rugged aluminum body, IP54 protection, and all-day battery life, the LPDM-15 makes methane monitoring fast, accurate, and hassle-free.
LPDM-15 features
Learn more LPDM-15 features
- Durable aluminum alloy housing
- Detection distance up to 15 meters
- Small size and weight
- Up to 8 hours of battery life
- Impact, moisture and dust resistance (IP54)
- Fast response and large measurement range
Small and robust remote laser methane detector with detection range up to 20 m
Compact yet powerful methane detector for harsh environments. Its IP66 rating allows reliable operation in dusty and wet conditions, while its 5 ppm×m sensitivity, enabled by modern TDLAS technology, ensures accurate leak detection results. This makes the LPD-20M well-suited for natural gas facilities where reliability and precision are critical.
LPD-20M features
Learn more LPD-20M features
- Durable aluminum alloy housing
- Detection distance up to 20 meters
- Small size and weight
- Up to 8 hours of battery life
- Impact, moisture and dust resistance (IP66)
- Fast response and large measurement range
Handheld explosion-proof remote laser methane detector with detection range of up to 30 m
The LPD M-30 detects methane at distances of up to 30 meters using reliable TDLAS technology. Its explosion-proof construction ensures safe use in hazardous locations, reducing the need to approach potential leak sources directly. Built-in Bluetooth enables convenient data logging and wireless transfer, so inspection records are easy to capture and share. Durable, precise, and straightforward to use, the LPD M-30 helps teams work safer and faster in demanding field environments.
LPD-M30 features
Learn more LPD-M30 features
- Explosion-proof housing 1Ex ib IIC T4 Gb X
- Detection distance up to 30 meters
- Small size and weight
- Powerful battery
- Impact, moisture and dust resistance (IP65)
- Fast response and large measurement range
- Bluetooth recording and data transfer function
- Simple and clean user interface
Handheld explosion-proof remote laser methane detector with detection range of up to 60 m
The LPD M-60 is built for situations where distance and safety matter. It detects methane at ranges up to 60 meters using reliable TDLAS technology, making it easy to check elevated, fenced-off, or hard-to-access areas without getting too close. Its explosion-proof design allows safe use in hazardous locations, and Bluetooth capability streamlines data logging and wireless reporting. With extended reach and straightforward operation, the LPD M-60 helps field teams work safely and efficiently.
LPD M-60 features
Learn more LPD M-60 features
- Explosion-proof housing 1Ex ib IIC T4 Gb X
- Detection distance up to 60 meters
- Small size and weight
- Powerful battery
- Impact, moisture and dust resistance (IP65)
- Fast response and large measurement range
- Bluetooth recording and data transfer function
- Simple and clean user interface
Handheld, explosion-proof laser methane detector with 100 m detection range
The LM-100 detects methane from up to 100 meters away using reliable TDLAS technology, allowing operators to inspect hard-to-reach areas without approaching the source. The device is explosion-proof and supports Bluetooth data logging and transfer. With its long detection range and user-friendly operation, the LM-100 helps teams work safely and efficiently during routine and emergency inspections.
LM-100 features
Learn more LM-100 features
- Explosion-proof housing 1Ex ib IIC T4 Gb X
- Detection distance up to 100 meters
- Small size and weight
- Powerful battery
- Impact, moisture and dust resistance (IP65)
- Fast response and large measurement range
- Bluetooth recording and data transfer function
- Simple and clean user interface
Pump-suction laser methane detector with wavelength locking
The SELMA Smart is a pump-suction laser methane detector engineered for reliable leak detection in gas distribution networks and field operations. Based on wavelength-locked TDLAS technology, it provides stable, methane-specific measurements without the need for regular calibration. This reduces maintenance workload and keeps the instrument in continuous field service instead of frequent workshop visits. The device can be installed on trolleys, electric carts, or vehicles to support mobile surveys across large areas. The result is higher efficiency, longer operational life, and a more streamlined leak detection workflow for utility teams.
SELMA Smart features
Learn more SELMA Smart features
- Advanced wavelength locking technology for calibration-free operation
- Up to 10 hours of operation on a single battery charge
- Explosion-proof housing Ex ib IIC T3 Gb
- Small size and weight
- Moisture and dust resistance (IP66)
- Fast response time 0.1 s
Specifications
FAQ
Honest answers to important questions
No, each device is designed to detect a specific gas. This provides a 100% probability of leak detection of methane and not any other gas.
Laser radiation is completely safe, it corresponds to class 1.
Yes, the instrument works in all weather conditions.
No, there is no impact.
No. The detector contains a reference cell with methane inside and calibration is performed at each start-up and during operation.
It works remotely. There is no direct contact with the hazardous environment.
Contact us
You can order the equipment or ask questions here
Your opinion matters!
Missing some functionality? Do you know how to improve the equipment? Please share your thoughts!