TPI 721 Combustible Gas Leak Detector

  • Detects natural gas, propane, butane etc with 16” Goose neck.
  • Dual display with analogue bargraph and backlight.
  • Audible and Visual alarm indication.
  • Earphone jack for use in noisy environments.
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£158.00 (ex VAT)

£189.60 (inc VAT)

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In Stock - Express Delivery Available
  • Detects natural gas, propane, butane etc with 16” Goose neck.
  • Dual display with analogue bargraph and backlight.
  • Audible and Visual alarm indication.
  • Earphone jack for use in noisy environments.
Free Shipping

Spend over £100 on any new goods order and receive automatic free shipping

Rewards

Points make purchases! For every £1 spent, earn back 1p that can be spent on any future new goods purchase

Our Price Promise

We offer a Price Match Promise! Find an equivalent tester for a cheaper price on a competitor site, and we’ll do our best to match it

Express Delivery & Calibration

Express Delivery is currently unavailable for customers wishing to add calibration to their New Goods order. For more information, visit our Delivery Information page. 

£158.00 (ex VAT)

£189.60 (inc VAT)

Earn 158 points

In Stock - Express Delivery Available
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TPI 721 Combustible Gas Leak Detector

The TPI 721 Combustible Gas Leak Detector offers dependable performance for professionals needing to pinpoint gas leaks in demanding environments. This handheld tool detects combustible gases with 10ppm sensitivity and provides accurate visual and audible alerts. Its ergonomic design ensures ease of use with one hand, even in confined spaces or complex pipework.

With a clear dual display, the TPI 721 allows you to monitor real-time ppm values, stepped ppm, and %LEL readings with ease. The 16-inch gooseneck probe features an integrated LED indicator for targeted inspections. In addition, its thumbwheel-controlled adjustable tic rate helps reduce background interference for precise leak location.

Versatile Detection Capabilities

The TPI 721 is compatible with a broad range of gases, including natural gas, methane, propane, butane, and more. It supports applications in gas line inspections, equipment maintenance, and environmental safety checks. This flexibility makes it ideal for HVAC engineers, utility providers, and industrial technicians.

User-Centric Functionality

Designed for clarity and control, the TPI 721 includes a user-adjustable alarm threshold and an earphone jack for noisy work areas. It automatically calibrates on startup, and its two C-cell batteries provide up to 20 hours of use. Durable, portable, and easy to operate, the TPI 721 meets essential gas detection needs without the need for an internal pump.

Key Features
  • Detects a wide range of combustible gases such as methane, propane, butane, and more
  • Displays readings in real ppm, stepped ppm, and %LEL formats
  • Sensitivity down to 10ppm for methane detection
  • 16-inch flexible gooseneck probe with LED sensor housing
  • Dual display with backlight and analogue bargraph
  • Adjustable audio and visual alarms for safety alerts
  • Thumbwheel control for setting tic rate and enhancing accuracy
  • Automatic sensor test and zeroing at startup
  • Earphone jack enables use in high-noise environments
  • Lightweight design with approx. 20-hour battery life
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TPI 721 Combustible Gas Leak Detector

The TPI 721 Combustible Gas Leak Detector offers dependable performance for professionals needing to pinpoint gas leaks in demanding environments. This handheld tool detects combustible gases with 10ppm sensitivity and provides accurate visual and audible alerts. Its ergonomic design ensures ease of use with one hand, even in confined spaces or complex pipework.

With a clear dual display, the TPI 721 allows you to monitor real-time ppm values, stepped ppm, and %LEL readings with ease. The 16-inch gooseneck probe features an integrated LED indicator for targeted inspections. In addition, its thumbwheel-controlled adjustable tic rate helps reduce background interference for precise leak location.

Versatile Detection Capabilities

The TPI 721 is compatible with a broad range of gases, including natural gas, methane, propane, butane, and more. It supports applications in gas line inspections, equipment maintenance, and environmental safety checks. This flexibility makes it ideal for HVAC engineers, utility providers, and industrial technicians.

User-Centric Functionality

Designed for clarity and control, the TPI 721 includes a user-adjustable alarm threshold and an earphone jack for noisy work areas. It automatically calibrates on startup, and its two C-cell batteries provide up to 20 hours of use. Durable, portable, and easy to operate, the TPI 721 meets essential gas detection needs without the need for an internal pump.

Key Features
  • Detects a wide range of combustible gases such as methane, propane, butane, and more
  • Displays readings in real ppm, stepped ppm, and %LEL formats
  • Sensitivity down to 10ppm for methane detection
  • 16-inch flexible gooseneck probe with LED sensor housing
  • Dual display with backlight and analogue bargraph
  • Adjustable audio and visual alarms for safety alerts
  • Thumbwheel control for setting tic rate and enhancing accuracy
  • Automatic sensor test and zeroing at startup
  • Earphone jack enables use in high-noise environments
  • Lightweight design with approx. 20-hour battery life

 

Technical Specifications
SpecificationDetails
Leak Detection Sensitivity (methane)10ppm
Accuracy±10%
Sensor TypeLow power semiconductor
Probe Length16 inches
Leak IndicationAudio / Visual
Adjustable Tic RateYes
AlarmAudible / Visual (User settable)
Display TypeDual display with backlight
Leak Level Read OutYes, 0 to 9999ppm
%LEL IndicationYes, 0% to 19.9%
Stepped ppm Read OutYes, 0, 500, 1000, 3000, 5000, 9999ppm
Internal Sample PumpNo
Intrinsic Safety RatedNo
Battery TypeC cell x 2
Battery LifeApproximately 20 hours
Weight1.1 lb (approx. 500g)
Manufacturer Part CodeTPI 721

What’s Included
  • TPI 721 Combustible Gas Leak Detector
  • Carrying pouch (A780)
  • Instruction manual
  • Installed and calibrated battery and sensor

QUESTIONS

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