- Long-distance gas monitoring with laser-based detection technology
- Non-contact measurement reduces maintenance and sensor contamination
- High accuracy with minimal cross-interference from other gases
- No false alarms due to selective wavelength absorption
- Ultra-fast response time compared to catalytic or electrochemical sensors
- Long service life with significantly reduced maintenance requirements
- Reliable leak detection over large monitoring areas
- Extended battery life enabling long-term field operation
 Datasheet
|
|
User Manual
|
- Portable 4-gas detector for protection against CO, H₂S, combustible gases and oxygen deficiency
- Extended battery life of up to 18 hours for full work shifts
- Large backlit display with 180° flip function for easy readability
- Rugged design with 4 m drop protection and IP65 / IP67 protection rating
- ATEX and UL certified for use in hazardous environments
- Traffic-light status indicator for quick overview of device status
- Powerful 95 dB audible alarm with LED visual and vibration alerts
- Simple one-button operation – even when wearing gloves
 Datasheet
|
- Portable multi-gas detector for simultaneous monitoring of up to 4 gases
- Detects more than 15 flammable gases simultaneously with a single calibration
- Extended battery life of up to 35 hours for longer work shifts
- Large backlit display with 180° flip function for easy readability
- Rugged design with 4 m drop protection and IP65 / IP67 rating
- ATEX Zone 0 and UL Class 1 Division 1 certified for hazardous environments
- Traffic-light status indicator for quick overview of device and compliance status
- Powerful 95 dB audible alarm with LED visual and vibration alerts
| Datasheet |
| User manual |
- Maintenance-free personal single gas detector for industrial safety applications
- Continuous gas monitoring with up to 2 years operational lifetime
- Available for hydrogen sulfide (H₂S), carbon monoxide (CO) or oxygen (O₂)
- Configurable alarm thresholds for flexible safety requirements
- Bump test warning indication and simple configuration via docking station
- Compact lightweight design with simple single-button operation
- Rugged housing with IP66 / IP67 protection for harsh industrial environments
- Real-time gas readings and countdown display for device status monitoring
|
Datasheet
|
- Compact personal single gas detector for industrial safety applications
- Rugged polycarbonate housing with IP65 protection rating
- 95 dB audible alarm, bright LED visual alarm and vibration alert
- Available for flammable gases, oxygen and toxic gases
- Rechargeable versions available for all gas types
- Simple one-button operation with easy-to-read display
- TWA and peak value display for reliable gas monitoring
- Lightweight ergonomic design for comfortable everyday use
| Datasheet |
- Portable multi-gas detector for monitoring up to 5 gases
- Optional integrated pump for sampling and pre-entry testing
- Large top-mounted display for quick and clear readings
- Simple single-button operation – even when wearing gloves
- Compatible with IR, PID and electrochemical sensors
- Rugged housing with IP65 / IP67 protection for harsh industrial environments
- High-capacity lithium-ion battery with more than 14 hours runtime
- Automatic reminders for bump tests and calibration
|
Datasheet
|
The Gas-Pro IR is ideal for the oil and gas industry. This personal multigas monitor can detect methane, pentane or propane using infrared (IR) sensor technology. The Gas-Pro IR is ideal for detecting potentially explosive gases where traditional, ”pellistor”, catalytic sensors will struggle – especially in a low oxygen environment.
|
Datasheet
|
- Portable multi-gas detector for monitoring up to 5 gases
- Optional integrated pump for sampling and pre-entry testing
- Large top-mounted display for easy and quick readings
- Simple one-button operation with ergonomic, hand-friendly design
- PID technology for detection of volatile organic compounds (VOC)
- Supports both diffusion and pumped operation
- Rugged housing with IP65 / IP66 protection for harsh industrial environments
- Powerful pump enables sampling from distances up to 30 m
|
Datasheet
|
- Designed specifically for tank inspection in tanks and vessels containing inert gases
- Detects combustible gases from Vol.% levels down to low % LEL concentrations
- Automatic range switching between % LEL and % Vol depending on gas concentration
- Monitors oxygen levels to support safe tank entry and system access decisions
- Tank testing mode with alarms disabled to avoid nuisance alarms at high gas concentrations
- Automatic flow plate detection with sampling possible from up to 30 m distance
- Lightweight portable device with simple one-hand operation, even when wearing gloves
- Can also be used as a personal gas detector with audible, visual and vibrating alarms
| Datasheet |
The Tetra:3 multigas monitor is a compact, robust and easy-to-use diffusion based detector. Single button operation, small size and clear top-mounted display make it a favourite in the market amongst those working in demanding industrial environments, such as those in the water, telecoms, food, brewing or hydrocarbons sectors.
| Datasheet |
Detective+ is a multi-gas temporary area monitor for use in turnaround/shutdown procedures, hot work maintenance, confined space entry work and many other utility, construction and oil and gas industry applications. Go solo or link together using Detective Net to form a perimeter, Detective+ gives a loud and clear alarm providing effective warning of gas hazards. The rugged, water and impact resistant design make Detective+ the ideal choice for your transportable gas detection needs.
| Datasheet |
Detective Wireless is a module that can replace interconnecting cables for Detective+. Detective Wireless will transmit gas alert signals and other alarms wirelessly between Detective units using a 433MHz signal up to 100 metres in distance.
| Datasheet |
With regulations driving tighter calibration routines and the requirement for daily bump testing, there is a real need for test gas. Gas detectors play a key part for people and plant safety so equipment cannot afford to be out of service.
| Datasheet |
I-Test is Crowcon’s fully automated solution for testing and verifying that your Gas-Pro and T4 are in a compliant state to carry out your daily work. Bump testing standards are getting tighter in all regions and the need for controlled bump and calibration records is a must. I-Test and the accompanying I-Test manager software makes this as easy as can be. It takes less than 1 minute to complete a bump test!
| Datasheet |
| User Manual |
- Precise measurement locations – measurement values tied to a captured image (measuring point, value and time stamp)
- Reliability – little maintenance with self-check or automatic calibration on start-up
- Remote detection – searching range of 30m removes safety risk for operators
- Quick response – allows for swift searching
- Persuasive evidence – laser co-axis digital camera records photos and videos and stores them on a cloud server
- User friendly – point and shoot technology with little or no training
- Clear laser – green laser pointer is visible in bright sunshine
| Datasheet |
| User Manual |
The LaserMethane mini (LMm) is an innovative long-range portable detector which allows methane gas to be detected at distances of up to 100m. This enables easy access to hard-to-reach locations, such as elevated piping or locked premises, and helps keep the operator away from potential leak sources.
Latest development – LMm is now available with Bluetooth connectivity.
Previously only available in a ‘safe-area’ version, Bluetooth is now an available option for the ATEX approved LMm. This allows connection to an Android device using the GasViewer app delivering data storage functionality. This means that important survey data including gas level, time, date and location can be combined, saved or emailed to a central point.
| Datasheet |
Portable Gas Detectors
Portable gas detectors provide personal protection in work environments where hazardous gas releases may occur. They detect flammable, toxic, or oxygen-altering gases directly in the user’s breathing zone. These compact, battery-powered devices are designed for reliable operation in confined, variable, or demanding industrial areas. They feature integrated optical, acoustic, and vibrating alarms and utilize robust sensor technologies suited for industrial, municipal, and technical applications.
FAQ
Which sensor technologies are used in portable gas detectors?
Typical sensors include electrochemical sensors (for toxic gases and oxygen), catalytic bead sensors (for combustible gases), infrared sensors (for CO₂ and certain hydrocarbons), and PID sensors for volatile organic compounds. The appropriate sensor depends on the target gas.
Which gases can portable detectors measure?
Common target gases include oxygen (O₂), carbon monoxide (CO), hydrogen sulfide (H₂S), combustible gases such as methane or propane, and VOC depending on the installed sensors.
How do single-gas and multi-gas detectors differ?
Single-gas detectors monitor one specific gas. Multi-gas detectors combine several sensing channels in one device, enabling simultaneous monitoring of gases such as O₂, CO, H₂S, and combustibles.
How do portable gas detectors alert the user?
They use audible alarms, LED visual indicators, and vibration alarms. This combination ensures clear warnings even in noisy or low-visibility environments.
What testing and maintenance procedures are required?
Regular bump tests, calibrations, and functional checks are necessary to maintain accuracy and responsiveness. The required intervals depend on the device and its operating conditions.
What is the typical battery runtime?
Runtime varies by model, number of active sensors, and operating mode. Typical portable detectors operate between 8 and more than 24 hours on a single charge.
What protection ratings do portable detectors have?
Many devices feature IP65 or IP66 protection, ensuring resistance to dust and water jets, making them suitable for harsh industrial or outdoor environments.
How do temperature and humidity affect measurement performance?
Extreme temperatures and humidity can affect sensor accuracy. Portable detectors are specified for certain environmental ranges and should be used within these limits.
How are portable gas detectors worn?
They are typically attached via clips to clothing, belts, respiratory gear, or tool harnesses, ideally in the breathing zone to reflect actual exposure.
Which data can portable detectors record?
Many models include data logging for concentration trends, alarm events, and device diagnostics, supporting safety documentation and analysis.