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Yellow handheld gas detector with 16 in flexible probe and soft carrying case

TEST PRODUCTS INTERNATIONAL 720B Combustible Gas Detector 10 ppm

SKU CH-FZXX-BTPMD

Detects combustible gases including methane at 10 ppm with a 16 in probe and audible-visual alerts

  • TypeEnvironmental & Mechanical
  • Detects leaks at 10 ppm sensitivity
  • Adjustable tick rate gives clear audible alerts
  • 16 in probe reaches tight engine spaces
  • One-hand operation frees the other hand for repairs
  • CE and RoHS certified for regulated environments

720B Combustible Gas Detector

The 720B detects butane, diesel, gasoline, kerosene, methane and propane down to 10 ppm methane. A 16 in probe and one-hand operation let technicians check confined spaces. CE and RoHS certification covers professional environmental and mechanical testing.

Upgrade from basic sniffers

Simple leak sniffers only signal presence without a concentration scale. The adjustable tick rate on this unit gives an audible indication of gas level so the operator can trace a leak to its source. The jump is worth it when pinpointing the exact fitting matters.

Detection limits at 10 ppm

Sensitivity is specified at 10 ppm for methane; other listed gases may require higher concentrations to trigger the alarm. Operating range stops at -4 °F and 104 °F, so the detector cannot be relied on in extreme cold or engine-bay heat. The 16 in probe reaches many fittings but not deep ductwork.

Highlights

  • Detects leaks at 10 ppm sensitivity
  • Adjustable tick rate gives clear audible alerts
  • 16 in probe reaches tight engine spaces
  • One-hand operation frees the other hand for repairs
  • CE and RoHS certified for regulated environments

Specifications

BrandTEST PRODUCTS INTL.
TypeEnvironmental & Mechanical

Questions about this item

How long is the probe on the 720B gas detector?

The probe measures 16 in, letting you reach into tight engine bays or around fuel lines without bending the main unit.

What is the first step when installing the A739 sensor into the 720B detector?

Align the sensor pins with the socket and press firmly until seated; the step users miss is skipping the warm-up period before taking readings.

When should the A739 sensor be replaced on the 720B detector?

Replace the A739 sensor when the adjustable tick rate no longer responds to known gas concentrations or after the calibration certificate expires.

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