To help you choose the best HVAC Refrigerant Leak Detector that fits all your requirements, we have created a list of six leak detectors after testing 23 different models for 127 hours. Out of six Fieldpiece Heated Diode Refrigerant Leak Detector is our favorite Detector. It has highly accurate sensors and detects almost all HVAC gases if you want to know more about the top products and the testing process scroll down.
Best HVAC Refrigerant Leak Detectors
1. Fieldpiece Heated Diode SRL8 – Editor’s Pick
The SRL8 is a popular detector among the HVAC technicians. So we were keen to test the product. Before that, we asked the experts, “what makes it a popular choice?” All experts agree that it is the heated diode technology that makes the difference.
We had barely opened the package and switched on. It picked up the test leakage. Even with low sensitivity settings, the leak triggered the sensor. Our team used it to identify the leak to the source with ease.
Like most of the leak detectors, it operates on battery. We charged the battery to its fullest and used it throughout the day. We were able to use the device for the whole day without having to charge it again. However, like any battery-operated device, with time, the battery capacity may reduce.
- Automatic and manual zeroing.
- Long-lasting battery.
- The sensor is well protected from moisture.
- Very easy to use.
- Highly accurate.
- It can be a little expensive.
Bottom Line
With SRL8, you don’t have to think much. It is a fast and durable leak detector. Just go for it.
2.Robinair TIFRX-1A Automatic – Best Under $150
Robinair is known for its service tools. Any tools manufactured by them are trustworthy and certified. TIFRX-1A is a perfect example of their quality. As the leak detector, it is based on the MPC circuit and advanced microprocessor for signal processing.
During the detection process, we kept an eye on how the indicators are working. It has an audible alarm with variable frequency. Even the ergonomics are simple. You can change the sensitivity setting and also perform a manual reset.
The TIFRX-1A uses two C-cell batteries as a power source. Yes, C-cell batteries are old style but did the job during tests. However, we think a rechargeable battery would have helped it score some more points in our tests.
- A powerful microprocessor for signal processing.
- Accurately pinpoints the source of the leak.
- Detection of all HVAC gas leaks.
- Simple ergonomics.
- Costs less than similar detectors.
- No rechargeable battery.
Bottom Line
If you require a detector from a reputed manufacturer and within your budget of $150, the TIFRX-1A is just right.
3. Signstek Portable Halogen Tester With High Sensitivity- Best For Budget Conscious Users
You may think budget detectors may lose on some of the best features but not with this one. Signstek HVAC detector surprised us with its quality feature and effectiveness. It has straightforward ergonomics, detects almost all HVAC gases, and uses C-cell batteries as a power source.
It also uses C-cell batteries. A rechargeable battery would have been high, but with price range so low, there is nothing to complain about. However, to make it more user-friendly, it shows battery voltage with three colors—red, orange, and green. Thus, you can change the batteries before it runs out.
The only thing with the detector that you have to take care of it. Prefer resetting the detector in fresh air before using it for a leakage detect.
- Fits into any kind of budget.
- Complete package in terms of HVAC gas detection.
- Spare tips included in the package.
- Very easy to handle under different working conditions.
- No rechargeable battery.
Bottom Line
When you are looking for a leakage detector that fits right into your budget or matter of fact any budget, Signstek Portable AC Refrigerant Halogen Gas Leakage Detector will always be an option.
4. INFICON TEK-Mate 705-202-G1 – Best For Accurate Reading
The Inficon Tek-Mate is on our list because of its ability to find the finest of the leaks. Most of the leak detectors are capable but usually not sensitive or too sensitive to detect the leak. For our team, the Inficon Tek-Mate’s sensitivity was right in the sweet spot.
It runs on 2 D-cell batteries, which gives long-running life compared to other similar leak detectors. Though rechargeable battery could have been better like the other HVAC leakage detectors have. But a low battery indicator makes up for it. So, you can change the battery before it is discharged completely.
Like any other suitable leakage detectors, it also has a variable audible signal and flashing LED to help locate the leakage.
- Highly sensitive sensor technology.
- Low-battery indicator.
- Sturdy, flexible metal probe.
- Much better battery life than C-Cell based detectors.
- Not the rechargeable battery.
- It can be damaged easily.
Bottom Line
If you require a detector that has the right amount of sensitivity, Inficon Tek-Mate will never disappoint you.
5. Elitech ILD-200 Advanced Model:705-202-G1 – Best For Detecting Multiple Gases
When we were testing different leak detectors, Elitech ILD-200 impressed us with its modern look and technology. If we look at the features, it has a TFT screen which not many leak detectors can boast about. Overall, the design also fits nicely into your hand. You can see the developers have put a lot of thought into renovating the leak detector.
As for technology, it uses infrared spectrum absorption. The infrared sensor can detect all the HVAC gases.
The most impressive thing about the Elitech ILD-200 detector is a TFT screen. You can see the sensitivity settings, detection, battery life, etc. on the screen. Though there was no faulty sensor, it will notify if the sensor is compromised.
Also, if you don’t want to disturb anyone with noise alerts or you are working in a noisy environment, you can quickly hook a 3.5 mm headphone. Even the battery it uses is the modern-day battery. It uses a Lithium battery, which gives you up to 6 hours of working time with a full charge. We did measure the time it took to charge fully. It was around 4 hours, 10 minutes.
- Rechargeable lithium battery.
- TFT screen.
- Headphone jack support.
- Much higher sensor life.
- Reset Function.
- Expensive than some of the leak detectors.
Bottom Line
We recommend you to get this detector just because of the TFT screen and headphone jack. It will make the detection process even smoother.
6. INFICON D-TEK Select – Most Portable Detector
It is another advanced HVAC gas detector that you can buy. Though it doesn’t have a TFT screen like Elitech ILD-200, it gives you the same performance. It also uses an infrared sensor for leakage detection.
When we used it, we were satisfied with the results. It was able to detect even the smallest of leakage. But the most significant positive about the Inficon D-Tek Select lies in its package. It includes spare filters, car charger, DC charger, and carrying case.
Ergonomics are simple and almost the same as the ist. The only thing that could have been better was the battery life. Though being a rechargeable detector, it makes up for it.
- Accurately detects the leakage.
- Rechargeable batteries.
- Two types of chargers included in the package.
- Spare filters.
- No TFT screen.
- Expensive.
Bottom Line
If you are looking for a highly portable, as well as the most advanced leak detector, you can trust Inficon D-Tek Select.
Buyer’s Guide – Things To Consider?
The only way to measure any leakage is by using the right leak detector. With so many options available, finding the best HVAC leak detector is tough. But if you know what factors to consider while buying, you will be able to get the detector that suits your need easily.
Before you look at the factors, just take a look at the different types of leak detectors:
Now you understand all types of HVAC leak detectors. If you ask us, which are the best types, we suggest you go only for the heated diode or infrared leak detectors. Even our list we have these two types of detectors.
Now let’s look at the factors that you need to know while choosing the leak detectors:
1. Accuracy
When you are looking for an HVAC gas leakage, you need to find the source fast. Only the most accurate leak detector will be able to meet that demand. While looking for the accuracy for any detector, the best sign is to look at the technique it uses for the detection.
As we have mentioned earlier, heated diode and infrared detectors provide you the most accurate reading. So stick to only those two types. Elitech ILD-200 Advanced Refrigerant Infrared Leak Detector and Fieldpiece Heated Diode Refrigerant Leak Detector are the most accurate detectors that you can buy.
2. Continuous Operation Time
What we mean continuous operation time is that for how long you can use the detector continuously. The reason why you need to consider this factor is that it shows how much time the detector gives to find the leakage.
Beyond the continuous operation limit, you risk exposing the sensor to contaminants. Once the sensor is contaminated, there is no way but to change it. So, get the detector that is not prone to contamination. Almost all the infrared leak detectors are not prone to contamination like Elitech ILD-200 Advanced Refrigerant Infrared Leak Detector.
3. Battery
You want to use a detector that is cordless and gives ample mobility in any working environment. That is, most preferred leak detectors are battery-powered. If you see our list, you will find that some detectors use traditional cell batteries and some modern lithium batteries.
Cell type batteries can be recharged. They need to be replaced. And the lithium-ion batteries are chargeable. Both have their advantages. Cell type batteries can run for a long time, whereas lithium batteries need to be charged every 5-6 hours.
But there is one issue with cell type batteries. When the battery is low, the detector may not function properly. But it is not the same with lithium batteries. But sometimes you may not have to charge port nearby you, then for such cases on the detectors with replaceable batteries is the only option.
4. Sensor
The sensor is the main factor that differentiates one detector to another. So always see the lifetime of the sensor. Some have one year, five years, or ten years. Though the manufacturer may say, its sensor may last up to 10 years, but if it gets contaminated easily, then there is no point buying the detector.
So, always make sure the detector you buy has a well-protected sensor and has a long life.
5. Maintenance
As the detectors are always used in harsh environments where there are moisture, oil, or different gases, maintenance becomes a key factor. If the detector is not maintained correctly, it loses its accuracy. So, get the detector that requires a list amount of maintenance. More importantly, the sensor must be well protected. Thus reducing the effort needed for maintenance.
How We Conducted The Tests?
We brought 23 different leak detectors and tested them for various parameters like accuracy, ease of use, battery life, and maintenance. These parameters were set for different environments. We had to use a different environment because detectors are used in many different ways. It is used for different HVAC systems like home, warehouse, car, etc.
In addition to testing, we also made sure that our team used each detector as an average user. This helped us to understand each product in a much better way. Talking to 12 experts also helped us to deepen our experience with these products.
We also went through several reputed review sites and also looked at the user reviews to understand what others think about the product.
After evaluating and interviewing our experts, our team scored them for accuracy, battery, and ease of use. This allowed us to rank the products.
Here is the scorecard for the leak detectors:
| Product Name | Accuracy | Battery | Durability | Overall | Price |
|---|---|---|---|---|---|
| Inficon D-Tek Select | 97.3 | 94.3 | 95.2 | 95.60 | Check Price |
| Elitech ILD-200 | 97.4 | 94.8 | 95.2 | 95.80 | Check Price |
| INFICON TEK-Mate | 98.6 | 95.4 | 95.2 | 96.40 | Check Price |
| Signstek Portable | 97.6 | 97.8 | 96.4 | 97.27 | Check Price |
| Robinair TIFRX-1A | 97.8 | 98.2 | 96.8 | 97.60 | Check Price |
| Fieldpiece SRL8 | 98.6 | 98.4 | 98.7 | 98.57 | Check Price |
FAQs
1. WhichHVAC refrigerant leak detector should you buy?
People have their own needs and their budget. Also, a leak detector is a device that is operated in various types of environments. You have to get the one that can handle a particular environment.
2. Is zeroing required every time you use?
Yes, any detector you use, it has to reset to zero in clean air. Most of the device has a straightforward reset button that you can use to reset before you apply.
Final Thought
HVAC gas leak detectors are required for detecting a different type of gases and under different circumstances. So make sure you have understood why you need a detector and under what conditions you will be using the detector. Also, detectors have their advantages and disadvantages. So go through our buyer’s guide to learn more about leak detectors. Once you are sure of your needs and have proper information on detectors, you can set your budget and try to find the right leak detectors.
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