LD7 Premium 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 sensor
  • Sweep 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

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SKU: LD7 Categories: , ,


Tech Specs:

Dimensions: 1.75in x 2.50in x 10.75in
Weight: 1.50 lb

Product Specs:

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)


LD7 Premium Refrigerant Leak Detector
4 AA alkaline batteries
Leak test vial
5 replacement sensor filters
Blow molded carrying case
Operator’s manual


Product Brochure

Operating Instructions – EnglishSpanishFrench


Additional information

Weight 1.5 oz
Dimensions 1.75 × 2.50 × 10.75 in

TOMAD International