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Measure Leaks, LEL, 02, CO and H2S. Designed to provide personal protection from potential hazardous conditions and help find the source of combustible gases fast!

  • Internal Pump
  • Water/Dust Filter
  • Push Button Operation
  • Field Calibration
  • Date/Time Display
  • Calibration Alert
  • Operation Memory
  • Calibration Memory
  • Infrared Download
  • Audible/Visual Alarms
  • Backlit LCD
  • Programmable Auto Shut Off

Product Documentationpdf-icon1

Click below to view or download product documentation PDFs:

739A Data Sheet

735A and 739A Manual

$1,995.00 USA Suggested List Price

Where to Buy TPI Products

Model 739A Gas Leak Detector

Designed to provide personal protection from potential hazardous conditions and help find the source of combustion gases fast!

Partial List of Users:

  • Utilities
  • Maintenance
  • Fire Departments
  • Safety Inspectors
  • Home Inspectors
  • Water/Sewer

Departments

  • Heating Contractors
  • Utility Contractors
  • Industrial Plants
  • Propane Marketers

 Model 739A Specifications
 Sensor
TYPE RESOLUTION RANGE ACCURACY
Leak N/A 0 -50,000 ppm N/A
LEL 0.1% 0-100 ±10%
O2 0.1% 0-25% ±0.2% or 2%*
CO 1pppm 0-2000ppm ±5ppm or 5%*
H2S 1ppm 0-100ppm ±1ppm or 5%*
*Whichever is Greater

Model 739A Applications

  • Gas Leak Survey/Investigations
  • Confined Space Monitoring
  • Gas Emergency Investigations
  • Vessel Testing

Frequently Asked Questions

1. What is the difference between the HXG-2 and the 720b?
The HXG-2 is intrinsically safe and has an adjustable alarm.

2. Can I use the 720b or HXG-2 to test for carbon monoxide as well as combustible gas leaks?
The HXG-2 and 720b are designed to detect combustible gas leaks. The 735 or 775 are the best choices to test for carbon monoxide as well as combustible gas leaks.

3. What is the difference between the 735 and 775?
Both the 775 and 735 can be used to test for carbon monoxide in ambient air as well as test for combustible gas leaks. The 735 is pump driven and can be used to test for CO infurnaces as well. When testing for combustible leaks the 775 uses an audible “tic” and visual indication while the 735 has audible indicationand displays the leak level in %LEL.

4. I only need to test for combustible gas leaks, which detector should I choose?
The 725 is pocket sized with LED and audible indicators that activate at preset leak levels. The 725 can detect a leak but does nothave the capability to determine the source. The 720b and HXG-2 are more sensitive, utilize a thumb wheel adjustable “tic” rate, and have goosenecks that enable them to reach into tight areas and not only detect a leak but determine the source. The HXG-2 has an adjustable alarm and is intrinsically safe.

5. I need to be able to produce a “hardcopy” of test results. Do any of the TPI detectors have this capability?
Yes, the 735 has an infrared interface for printing testing results.

6. What gases can be detected?
Gases that can be detected include but are not limited to Acetone, Alcohol, Butane, Gasoline,Kerosene, Methane, Natural Gas, and Propane.

TPI Model 719 Demonstration Video

Coming Soon!

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