Fieldpiece Heated Diode Refrigerant Leak Detector - DR58



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DR58 Heated Diode Leak Detector for Refrigerants

Like all of Fieldpiece's test instruments, the DR58 Heat Diode Refrigerant Leak Detector is designed exclusively to make the HVACR Technician's job easier, faster, safer and more efficient. 

If you want to find leaks faster for your customers, try the Fieldpiece DR58 Refrigerant Leak Detector. The newest detector can sniff out leaks at <1.0 gram/yr. That’s 20 times more sensitive than soap bubbles. This exceeds detection standards so you can quickly find and pinpoint leaks. DR58 triggers on all HFC, CFC, HCFC, HFO and blends. You are in control with the manual or automatic zeroing function - it's your choice.

This NEW Fieldpiece Leak Detector is highly sensitive, durable, and more reliable than anything else on the market. The new DR58 Heat Diode Refrigerant Leak Detector features a large LCD that provides information about the leaks with bar graphs and numerical values. 

The ergonomic design fits naturally in your hand. The ruggedized construction stands up to abuse most other leak detectors can't handle. The 18-hour battery life lets you work all day before recharging. If need you can still use it while charging! The mute and Max mode functions allow you to work the way you want to work. 

This NEW DR58 is designed for the field with rugged blow moulded carrying cases and water-resistant bodies.


  • Heated diode sensor 300 hour life, typical
  • Compact designed to fit in your hand
  • Dual audible and visual alarms – turn the beep on or off when you want
  • LED lighted tip and loud beep help find leaks in noisy and dark environments
  • Sensitivity better than 1.0 g/yr
  • Ruggedized and IP54-certified
  • 18-hour USB rechargeable lithium-ion battery – work all day and all night on one charge
  • Bright blue, back-lit LCD screen with clear numerical leak size indicator and bar graph
  • Non-conductive, sturdy probe that stays where you want it
  • Light weight
  • Full control – Automatic Zero, Manual Zero and Mute functions
  • Great performance on R410A
  • Detects all HFC, CFC, HCFC, HFO and blends
  • Works on A2L Refrigerants
  • Field replaceable heated diode sensor


  • Heat Diode Refrigerant Leak Detector (DR58)
  • 1 x Heat Diode Sensor (RHD1)
  • 5 x Replacement Filtered Tips (RFT6)
  • Wall Charger with USB-C Cable (RCA3)
  • Blow-Molded Case (ABM2)
  • Operator’s Manual


Sensor Type Heated diode
Sensor Life 300 hours typical
Sensitivity Levels High, medium, low (selectable)
Maximum Sensitivity 1.0 g/yr, stationary; 3.0 g/yr, in motion
Display Type LCD (backlit for indoor use)
Detection Feedback Red tip LED, LCD bar graph, LCD digits, beeper
Refrigerants HFC, HCFC, CFC, HFOs, and blends
Response Time <1 seconds typical
Recovery Time <10 seconds typical
Body Type Compact, rugged overmolded
Battery Type 3.7 VDC (nominal) 2600mAh, non-replaceable
Charge Time 6 hours typical with included charger.
Battery Life 18 hours typical, backlight off
Auto Power Off 10 minutes without detection or button press
Operating Environment 0°C to 40°C; < 75% RH (non-condensing)
Storage Temperature -20°C to 60°C; < 80% RH
Weight 14 oz (400g)
Water Resistance Designed to IP54
US Patent



1 Year from Date of Purchase (​excludes Consumables such as Filters, Gaskets, Leads, Batteries, Fuses, Sensors, Case etc)


Buy with 100% confidence knowing your purchase is backed by the full Manufacturer's Warranty. Please register your product with provided warranty card.


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