LS790B Leak-Seeker | Refrigerant Leak Detector

10 sensitivity ranges enable the LS790B to detect all non-combustible CFC, HCFC, HFC gases and blends.

General Details

The LS790B Leak-Seeker combines the most advanced microcomputer circuitry with field-proven Ion-pump sensor technology creating a highly sensitive, accurate electronic refrigerant leak detector. Over 100 computer-generated tones and a high-intensity bar graph display quickly alerts the user to varying halogen concentrations. Patented automatic calibration design eliminates the need for manual balance or tick rate adjustments while the user-selectable 10 sensitivity ranges enable the LS790B Leak-Seeker to detect all non-combustible CFC, HCFC, HFC gases and blends.

LS790B Leak-Seeker Features:

  • Individually calibrated to detect a leak rate of better than 0.25 oz/yr (7g/yr) of HFC
  • Patented Ion-Pump® sensor technology proven effective in detecting all refrigerant types
  • Patented water vapor filter provides greater stability under high humidity conditions
  • Patented automatic calibration circuit ensures optimal performance at all times
Detector TypeProprietary Ion-Pump sensor with built-in selective filter housing
SensitivityBetter than 0.25 oz (7g) / year leak rate of HFC
Sensitivity SelectionManual
Refrigerant SensitivityAll, including those with hydrocarbon components (CFC, HCFC, HFC, HFO, NH3, HC)
Visual AlarmHigh intensity LED
(Varies in brightness)High intensity bar graph display
Flex Probe18˝ long metal flex probe
Operating Temperature0 to 140ºF (-18 to 60ºC)
Controls6 button keypad
Power (Battery Life)(4) AA alkaline batteries (>40 hr continuous use)
Weight18 oz (500g)
Audible Alarms128 computer generated tones to precisely guide user to the source of the leak
Lock-Out ModeYes
Low Battery IndicationCenter LED above “*” lights during operation
Auto-OffYes, after 15 minutes of inactivity
Sensor LifeReplace seasonally
Warranty2 years
Replacement Parts
LSXSFSelective Filter Housing
LSXBMKMaintenance Kit: (1) LSXS + (1) LSXSF
LSXSIon-Pump Sensor
LSXBCBattery Compartment Cover (Yellow)
LSXCFabric Carrying Case

“LS790B is the best leak detector I’ve owned. This leak detector will pick up the smallest of leaks with no effort on my part. The alarm sounds funny, but man this thing works. I’m not going to use my old leak detector anymore after buying this CPS leak detector.” – Amazon Verified Purchase

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