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Crowcon Triple Plus Plus / Triple Plus IR Portable Gas Monitors

Crowcon's Triple Plus + Multigas Portable Gas Detector can detect 4 types of gas, is dust proof and floats if dropped in water...The IR Version features Infrared Hydrocarbon Sensors...

With thousands of units in use worldwide, Crowcon's Triple Plus + portable gas detector provides customers with a rugged, reliable multigas instrument that provides quality gas leak detection in harsh environments.  Triple Plus+ is even buoyant, making it easy to recover if accidentally dropped in water.  Triple Plus + measures up to four gases and comes  with interchangeable sensors allowing complete flexibility.  When detecting a gas above a pre-set level, or for oxygen a pre-set depletion level, the Triple Plus + emits a loud, piercing alarm and a flashing red LED visual alarm.  Triple Plus + is intrinsically safe, meets ingress protection standards to IP65 and offers 12 hour's of continuous operation with rechargeable batteries.

Triple Plus + IR is a new version of the Triple Plus + utilizing infrared sensing technology for detection and measurement of flammable hydrocarbons.  Ideal for purge monitoring, infrared sensors are suitable for both high gas concentrations and for use in inert (oxygen free) backgrounds.  The IR version extends the capability of the established Triple Plus + range for gas detection. The unique design of the Crowcon IR sensor module used in Triple Plus + IR allows measurement of hydrocarbons at both % LEL and % volume ranges.  Triple Plus + IR is well designed for detection of hydrocarbons in confined space entry and for line and tank monitoring.

Triple Plus + IR Features...

  • Available with single or dual range IR sensors
  • Measures hydrocarbons at both %LEL and % volume ranges
  • Rugged, durable casing provides ingress protection to IP65 standards
  • Large simultaneous four gas display with backlight
  • Loud audible alarm - bright visual alarm
  • Available for diffusion, manual aspirator or pumped sampling
  • Full timed data-logging file with 100 hour capacity
  • Each sensor module carries its own identity and calibration data
  • Perfect instrument for purging applications
  • A version of Triple Plus Plus IR is also available for carbon dioxide detection.
Crowcon Triple Plus + IR

Crowcon Triple Plus IR
Infrared MultiGas Monitor for Combustible Hydrocarbons plus 3 other Gases

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Crowcon Triple Plus Portable Gas Monitor

Crowcon Triple Plus Plus
MultiGas Portable Gas Monitor

crowcon tripple plus+ portable gas monitor

Battery Charger
For Crowcon Triple Plus Plus and Triple Plus IR Gas Monitors


Sophisticated Construction and Easy Operation...

Crowcon's Triple+ Plus Multigas Portable Gas Detector features Triax (TM) casing that will not crack or shatter when dropped and floats in water for easy recovery.  It's unique internal design resists the harshest treatment and environments.  Piercing 85dBA @1m audio alarm and highly visible alarms provide maximum user protection.  Featuring a large, easy to read text display, Triple+ Plus offers a variety of sophisticated, interchangeable sensors.  Displays for four gases can be read simultaneously, allowing easy and convenient monitoring of multiple gas hazards.  QuickCal features simple and fast instrument calibration.  Triple+ Plus allows many possible sensor combinations and can be easily customized for flammable gas factors and time zones.

With over 35 years of experience, Crowcon provides the latest Gas Detection Equipment.  Crowcon's highly regarded reputation for quality, reliability and innovative technology offers customers a wide variety of high quality, fair priced gas leak detection instruments.Crowcon Triple Plus+ Gas Monitor Accessories

Triple Plus Accessories...

  • Carry case and belt
  • Baffle plate (to protect sensors)
  • Earpiece
  • Aspirator Manual bulb and 2 m hose, both non-absorbent and hydrocarbon resistant, 1 m probe, water trap and extra hose available
Triple Plus+ Specifications...
Weight 2 lbs (900grams)
Dimensions 118 h x 167 w x 73 d mm
(4.65 x 6.6 x 2.9 inches)
Ranges and alarms Gas Range Alarm
Up to 3 levels of alarm are available per channel Flammable 0-100% 20%
Methane 0-100% -
Oxygen 0-25% 19%23%
Hydrogen sulphide 0-50ppm 10ppm
Carbon Monoxide 0-500ppm 30ppm
Sulphur dioxide 0-10ppm 2ppm
Chlorine 0-5ppm 0.5ppm
Nitrogen dioxide 0-10ppm 2ppm
Phosphine 0-5ppm 0.5ppm
Ammonia 0-50ppm 25ppm
Hydrogen 0-2000ppm -
Hydrogen cyanide 0-25ppm 10ppm
Hydrogen cyanide 0-10ppm 5ppm
Ozone 0-1ppm 0.5ppm
Other sensors available
Typical Alarm Response Time Methane 20 s, Oxygen 10 s, Typical Toxic Gas 20 s.
Expected sensor life Flammable 5 years, Toxic 3 years, Oxygen 2 years.
Audible Alarm Piercing, rapid intermittent, piezo-electric tone,
85 dBA at 1 m.
Confidence blip (selectable).
Distinctive double blip for low battery.
Visible Alarm Ultra bright flashing red LED in gas hazard.
Slow flashing green LED indicates instrument is working.
Distinctive double flash of green LED indicates low battery.
Display 2 lines of 24 characters, dot matrix high contrast LCD with back light operating for 30 minutes. Values and units for up to 4 gases displayed simultaneously at current, TWA or peak levels. Low battery, pump failure, real time and elapsed time, calibration and configuration data also displayed.
Datalogging Adjustable sample rate, 100 hours @ 1 minute sample rate (maximum 6000 data points per channel), logging of events, user and site.
Battery Sealed lead acid 1.2 Ah, interchangeable rechargeable battery pack. Option for UL approved units: 5xAA disposable alkaline batteries.
Battery Life Standard instrument 12 hours.
Pumped instrument 8-10 hours.
Battery Charging Dual rate ‘drop in’ charger for instrument.
Dual rate charger/PC interface for instrument
and battery pack.
Electric Pump Optional internal pump with on/off button.
Operating temp. range -20°C to +50°C (-4°F to 122°F).
Humidity 0 – 95% RH non condensing.
Approval Codes  
Europe: ATEX I M2: EEX lb d I ATEX II 2G: EEx ib d IIC T4
USA: Class 1 Division 1, Groups A, B, C, D
Safety Standards  
Europe EN50014, EN50020, 94/9/EC, SFA3009
USA & Canada UL 913, CSA 22.2
Ingress protection IP65
RF radiation EN50081-2, EN50270
RF immunity EN50082-2, EN50270
PC Interface PC access is achieved through an RS232 serial link by locating the instrument in the charger/PC interface. The Windows™ compatible software Set portable is then used to adjust or set: all alarms, levels of alarm (3 for all channels, oxygen 2 descending 1 ascending), clock, password, flammable gas correction factors, time zones,
user and site. Log manager controls datalogging, giving the user a choice of direct graphical output or a data file compatible with all leading spreadsheets.
Auto Calibrator Triple Plus+ can be routinely calibrated quickly and simply using Autocalibrator. The internal pump of Autocalibrator handles up to five gases. A PC interface provides easy access with optional data logging for proof of calibration.
Accessories Carry case and belt
Baffle plate (to protect sensors)
Aspirator Manual bulb and 2 m hose, both non-absorbent and hydrocarbon resistant, 1 m probe, water trap and extra hose available


See our entire line of Portable Gas Monitors or read about all Gas Monitors.

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