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Amprobe RLD-1 Refrigerant Leak Detector

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Specifications for this item
Number of Items
Overall Height
33  millimeters
Overall Width
70  millimeters
Part Number
Temperature Range
0/50  Degrees Celsius
Item Weight
1 pounds
Brand Name
Measurement Accuracy
+/- 0.3 C
Liquid Crystal Display (LCD)
Overall Length
175  millimeters

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Key Features

  • Senses leaking refrigerant in air-conditioning systems
  • Semiconductor sensor detects halogenated refrigerants, including R-134a, R-404A, R-407C, R-410A, R-22, and Freon
  • Suction pump cleans sensor and improves efficiency
  • Flexible stainless steel probe provides access to hard-to-reach areas
  • Ambient concentration reset feature helps locate leaks in areas with airborne refrigerant

Package Details

Shipping Weight: 3.05 pounds
Package Size: 13 x 9.9 x 2.9 inches

Product Description

The Amprobe RLD-1 leak detector senses leaking refrigerant in home and heating, ventilation, and air-conditioning (HVAC) maintenance applications. The unit has a semiconductor sensor that detects halogenated refrigerants, including R-134a, R-404A, R-407C, R-410A, R-22, and Freon. The detector has a built-in suction pump that cleans the sensor and improves efficiency. The attached flexible, stainless steel probe is 15.5" (400 mm) long and provides access to hard-to-reach areas. It has a sensor cap that protects the sensor during transportation and storage. The unit's ambient concentration reset feature uses the detected amount of airborne refrigerant as a zero point for all other measurements, helping to locate leaks in areas with airborne refrigerant. The sensor's sensitivity can be adjusted based on the estimated distance to the leak to help pinpoint the source of the leak. The Amprobe RLD-1 leak detector comes with a leak check bottle that serves as a reference leak source to verify that the unit is functioning properly. An audible buzzer and a display panel with light-emitting diodes (LEDs) indicate when the sensor is close to the source of the leak. The auto power-off feature turns off the unit after 10 minutes of non-use to conserve battery life, and a low-battery indicator signals when the meter's batteries need to be replaced. The unit comes with hard plastic carrying case that helps protect the leak detector from damage during transportation and storage.


Operating temperature0 to 40 degrees Celsius/32 to 104 degrees Fahrenheit
Power supply3V C batteries (two, included) or 3.3V/0.5 amp AC adaptor (included)
Standards metEuropean Conformity (CE); Australia N10140
Dimensions8.7 x 2.6 x 2.0 inches/222 x 66 x 51 mm (H x W x D)

H is height, the vertical distance from the lowest to highest point; W is width, the horizontal distance from left to right; D is depth, the horizontal distance from front to back.

Leak detectors are used in mechanical, automotive, petrochemical, wastewater treatment, plumbing, electrical, and heating, ventilation, and air conditioning (HVAC) applications to locate the source of a leaking gas or liquid. Simple leak detectors use dyes, pH- or chemically reactive indicators, or a foaming substance to find leaks in pipes, tubes, fittings, tanks, and cylinders. More complex leak detectors have electronic sensors that measure the concentration of leaked gas or liquid in an area to pinpoint the source of leaks, determine the type of gas present, monitor air quality, and detect electrical corona or failing valves, bearings, and solenoids.

Amprobe manufactures electrical testing equipment for commercial, industrial, and home use. The company was founded in 1948 and is headquartered in Everett, WA.

What’s in the Box?

  • RLD-1 leak detector
  • (1) Leak check bottle
  • (1) 3.3V/0.5 amp alternating current (AC) adaptor
  • (2) 3V C alkaline batteries
  • (1) Carrying case
  • Instructions

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