10 Best freon leak detectors of 2025

Save up to 33% off

Best Choice

1

Fieldpiece
Fieldpiece - DR58 Heated Diode Refrigerant Leak Detector - Ultra-Sensitive Leak Sniffer with Large, Backlite LCD Screen - Lightweight HVAC Tool
Main highlights

High Sensitivity Detection
Detects leaks as small as 0.03 oz/yr, ensuring precise identification of refrigerant leaks.

Ideal for HVAC Professionals
Perfect for HVAC technicians needing to quickly locate refrigerant leaks.

Praised for Quick Accuracy
Customers commend its speed and accuracy in finding leaks.
9.7

Exceptional

Our Rating

9.9
Precision

9.9
Simple to use

9.9
worth the money
How do we rank?

Powerful technology We scan thousands of products and stores, analyzing reviews to find what matters most to users like you

Careful review Our team ensures quality, value, and fit based on real user feedback

Trusted insights AI and human analysis guide your decisions, reflecting real user priorities
Real users impact

Thousands of users trust our site daily

Based on millions of stores and reviews

Shoppers influence our rankings
Analyzing top stores
Value for Money

2

Elitech
Elitech HVAC Refrigerant Leak Detector 10 Yrs Infrared Sensor Life, Halogen Freon Sniffer, Air Conditioning Detection, Automotive Gas Finder, ILD-200
Main highlights

Key Features and Benefits
Offers superior anti-interference, fast response, and high sensitivity up to 0.14oz/yr. Detects all halogenated gases with a long service life.

Ideal Use Cases
Perfect for HVAC maintenance, refrigeration repair, and environmental monitoring, especially in detecting leaks in various refrigerants and mixed gases.

Customer Reviews Highlight
Users highly appreciate its accuracy, ease of use, and the large, clear 2.8-inch screen, making leak detection more efficient.
Key specs
- Size:1.5D x 3.3W x 7.9H
- Compatibility:Halogen refrigerants
- Color:Ild-200
- Number of Pieces:N/A
- Voltage:N/A
9.6

Exceptional

Our Rating

9.9
Simple to use

9.7
Precision

9.5
worth the money
3

SENSYX
SENSYX Rechargeable HVAC Refrigerant Leak Detector, Halogen Freon Sniffer, Air Conditioning Detection, Automotive Gas Finder (SFD201 Refrigerant&Combustible Gas Detector)
Main highlights

Rechargeable Lithium Battery Convenience
Enjoy cordless operation with a rechargeable battery and USB-C charging, enhancing mobility and prolonged use.

Versatile Leak Detection
Ideal for HVAC and automotive applications, detecting halogen refrigerants and combustible gases efficiently.

Highly Sensitive Sensor
Praised for its exceptional sensitivity and reliability in detecting gas leaks.
Key specs
- Size:ILD-200
- Compatibility:Refrigerant&Combustible Gas
- Color:SFD201 Refrigerant&Combustible
- Number of Pieces:1
- Voltage:Rechargeable Lithium Battery
9.4

Excellent

Our Rating
4

Elitech
Elitech Freon Leak Detector Halogen Refrigerant Gas Leak Detector HVAC Tester AC Sniffer R22 R410A R134A 1234YF, WJL-6000S
Main highlights

Key Features
Detects all halogenated refrigerants with 7 adjustable sensitivity levels and quick response time. Features audible/visual indicators and a flexible probe.

Ideal Use Cases
Perfect for self-checking auto AC, air conditioning systems, and hard-to-reach areas. Essential for professionals in HVAC maintenance and repair.

Customer Praise
Highly praised for its accuracy, ease of use, and the fast response time, making it a reliable tool for leak detection tasks.
9.3

Excellent

Our Rating

8.9
Simple to use

8.4
worth the money

8.0
Precision
5

Elitech
Elitech HVAC Refrigerant Leak Detector Heated Diode Sensor Halogen Freon Sniffer, Air Conditioning Detection, R22 R410A R134A R1234YF CFCs HCFCs HFCs, ILD-100H
Main highlights

TFT_Screen_and_High_Sensitivity
The ILD300 features a TFT screen for clear readings and adjustable sensitivity up to 0.1oz/yr, making it highly accurate for detecting halogenated refrigerants.

Ideal_for_AC_and_Refrigeration_Repairs
Perfect for pinpointing leaks in AC units and refrigeration systems, especially useful for professionals needing accurate detection without false alarms.

Highly_Accurate_Leak_Detection
Customers frequently praise the ILD300 for its accuracy in detecting leaks, ease of use, and the advantage of having a TFT screen for clear readings.
9.1

Excellent

Our Rating

9.7
Precision

9.5
Simple to use

9.3
Battery Duration
See Today’s Deals & Prices
6

Elitech
Elitech Refrigerant Leak Detector, CLD-100 Freon Leak Detector Car HVAC Halogen Refrigerant Leak Detector CFCs HCFCs HFCs

12% Off
Main highlights

Versatile Detection
Upgraded corona sensor detects all halogenated refrigerants quickly.

Ideal for HVAC and Automotive
Perfect for finding leaks in HVAC systems and vehicles.

User-Friendly Operation
Customers praise ease of use and fast leak detection.
Key specs
- Size:2.5 x 2.5 x 9 inches
- Compatibility:R11, R22, R134A, R404a, R410A
- Color:N/A
- Number of Pieces:N/A
- Voltage:Battery by 4 AAA
9.0

Excellent

Our Rating
7

Aprvtio

Combustible Gas & Refrigerant Leak Detector, Aprvtio WJL-6000PRO Combine Gas Tester with Loud Alarm, Measures PPM%LEL 1800mAh Rechargeable Battery for R454B R410A Propane Methane
8.7

Very Good

Our Rating
8

TOPTES

TOPTES RT-389 Rechargeable Refrigerant Leak Detector, HVAC Freon Leak Detector with 3 Sensitivity Modes & 3 Alarm Types, Air Conditioning Detection for CFCs, HCFCs, HFCs, HFOs, HCs - Orange

20% Off
8.6

Very Good

Our Rating
9

THIKPO

THIPKO HVAC Refrigerant Leak Detector, Freon Leak Sniffer for R134a R410A R22 R32 R1234yf, Halogen Gas Detector for Automotive AC Repair & Air Conditioning with Audio Visual Alarm & LCD Display

33% Off
8.4

Good

Our Rating
10

Aprvtio
Refrigerant Leak Detector with LED Light, Aprvtio WJL-6000PRO Halogen Leak Detector Freon Gas Leakage Tester HVAC Air Condition R22 R410A R134A R454B CFCs HCFCs HFCs Indicator Freon Sniffer
Main highlights

Key Features
Upgraded sensitivity to 0.14oz/yr, visual leakage level display, 50-hour battery life, and dual-color LED light for enhanced visibility.

Ideal Use Cases
Perfect for HVAC repair, automotive AC checks, and refrigeration maintenance, especially in dark, small, or hard-to-reach areas.

Customer Praise
Most reviews highlight its exceptional sensitivity and accuracy, durable design, and the helpful visual and audible leakage indicators as standout features.
Key specs
- Size:11.85 x 3.58 x 1.93 inches
- Compatibility:R22, R410A, R134A, R1234YF
- Color:WJL-6000PRO-UV
- Number of Pieces:1
- Voltage:N/A
8.3

Good

Our Rating

8.7
Simple to use

8.0
worth the money

8.0
Precision

10 Best freon leak detectors of 2025

1

Fieldpiece - DR58 Heated Diode Refrigerant Leak Detector - Ultra-Sensitive Leak Sniffer with Large, Backlite LCD Screen - Lightweight HVAC Tool

9.9

9.9

9.9

How do we rank?

How do we rank?

Analyzing top stores

2

Elitech HVAC Refrigerant Leak Detector 10 Yrs Infrared Sensor Life, Halogen Freon Sniffer, Air Conditioning Detection, Automotive Gas Finder, ILD-200

9.9

9.7

9.5

3

SENSYX Rechargeable HVAC Refrigerant Leak Detector, Halogen Freon Sniffer, Air Conditioning Detection, Automotive Gas Finder (SFD201 Refrigerant&Combustible Gas Detector)

4

Elitech Freon Leak Detector Halogen Refrigerant Gas Leak Detector HVAC Tester AC Sniffer R22 R410A R134A 1234YF, WJL-6000S

8.9

8.4

8.0

5

Elitech HVAC Refrigerant Leak Detector Heated Diode Sensor Halogen Freon Sniffer, Air Conditioning Detection, R22 R410A R134A R1234YF CFCs HCFCs HFCs, ILD-100H

9.7

9.5

9.3

6

Elitech Refrigerant Leak Detector, CLD-100 Freon Leak Detector Car HVAC Halogen Refrigerant Leak Detector CFCs HCFCs HFCs

7

Combustible Gas & Refrigerant Leak Detector, Aprvtio WJL-6000PRO Combine Gas Tester with Loud Alarm, Measures PPM%LEL 1800mAh Rechargeable Battery for R454B R410A Propane Methane

8

TOPTES RT-389 Rechargeable Refrigerant Leak Detector, HVAC Freon Leak Detector with 3 Sensitivity Modes & 3 Alarm Types, Air Conditioning Detection for CFCs, HCFCs, HFCs, HFOs, HCs - Orange

9

THIPKO HVAC Refrigerant Leak Detector, Freon Leak Sniffer for R134a R410A R22 R32 R1234yf, Halogen Gas Detector for Automotive AC Repair & Air Conditioning with Audio Visual Alarm & LCD Display

10

Refrigerant Leak Detector with LED Light, Aprvtio WJL-6000PRO Halogen Leak Detector Freon Gas Leakage Tester HVAC Air Condition R22 R410A R134A R454B CFCs HCFCs HFCs Indicator Freon Sniffer

8.7

8.0

8.0

Sign up and get exclusive special deals