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A/C Refrigerant Leak Detector

The Robinair LD7 Premium Refrigerant Leak Detector features a new color graphic display that highlights leak sizes in two unique ways. Bar graph mode shows the amount of refrigerant detected in the air and changes colors as the sensor gets closer to the leak. Sweep mode allows the user to see the level of refrigerant detected in the air through a line graph that helps the user trace back and forth to pinpoint the exact source of the leak.

The LD7 also uses an audible alarm to alert technicians of a refrigerant leak, UV LED lights to locate leaks using UV dye and an inspection light for searching in dark locations. The LD7 is compatible with most commonly used refrigerants today, including R-134a and 1234yf, and is equipped with a stable, long life sensor that will last up to 10 years. The LD7 meets all of the current industry leak detector standards and is covered by a 2-year warranty. Uses 4 AA batteries, included.


  • Patented 3 LED UV lights with 395-415 nm wave length is optimum for a/c dye fluorescence
  • Unique color graphic LCD screen
  • Long life, stable sensorSweep mode function to pinpoint leak source
  • Automatic calibration and reset to ambient
  • User friendly message and error screens
  • High intensity LED inspection light
  • 3 adjustable sensitivity levels
  • Low battery indicator
  • True mechanical pump
  • Audio mute function
  • Uses 4 AA alkaline batteries, included
  • Comfortable handle grip


  • Sensitivity: .05 oz/yr R134a, .0123 oz/yr R1234yf
  • UV mode: 3 UV LEDs
  • UV wave-length: 395-415 nanometers
  • Sensor life: Up to 10 years
  • Response time: Instantaneous
  • Power supply: 4 AA alkaline batteries, included
  • Battery life: 4 hours continuous
  • Warm up time: Less than 20 seconds
  • Alarm near sensor: Visual probe LED
  • LCD screen: 128 x 160 full color graphic display
  • Probe length: 17 inches
  • Weight: 1.5 lbs
  • Warranty: 2 years (includes sensor)
Refrigerant TypeR1234YF R134A
Part NumberLD7
Line CodeROB
TerminologyA/C Refrigerant Leak Detector
For warranty information please contact Auto-Wares.