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🔍 Detect leaks before they detect you — stay ahead with Inficon’s TEK-Mate!
The Inficon Refrigerant Leak Detector Model 705-202-G1 offers professional-grade sensitivity at 0.25 oz./year, detecting all major refrigerant types with a proven heated diode sensor. Designed for HVAC/R technicians, it features 8-hour battery life on standard D-cell alkalines, automatic background zeroing to prevent false alarms, and comes with a rugged carrying case and US-based support. Trusted by thousands, it’s the #1 selling leak detector in its category, combining precision, durability, and ease of use.
| ASIN | B000H6OZJ4 |
| Alarm | Audible |
| Battery Average Life | 8 Hours |
| Best Sellers Rank | #44,057 in Automotive ( See Top 100 in Automotive ) #23 in Air Conditioning Leak Detection Tools |
| Brand | Inficon |
| Built-In Media | TEK-Mate, Heated Diode Sensor, D-Size alkaline batteries, filters, Carrying Case |
| Customer Reviews | 4.4 4.4 out of 5 stars (553) |
| Global Trade Identification Number | 00689466037050 |
| Item Dimensions D x W x H | 4"D x 4"W x 12"H |
| Item Type Name | LEAK DETECTOR |
| Item Weight | 3.1 Pounds |
| Manufacturer | Inficon |
| Mfr Part Number | 705-202-G1 |
| Model Number | 705-202-G1 |
| Number of Items | 1 |
| Power Source | Battery Powered |
| Product Style | Leak Detector |
| Sensor Type | Heated diode |
| UPC | 689466037050 810044830415 696335216133 |
| Unit Count | 1.0 Count |
J**Y
Good detector
This unit does the job when needed. You have to ensure that the end is clean when using. The key is you have to trust the detector. It will find the leaks and batteries last a long time.
K**S
Reliable
HVAC service tech since 2011. This is the best sniffer I've used. So far I'm 3 for 3 locating leaks. Only thing I don't like is there's no mute button and sometimes the warm up seems to take a really long time. Would definitely recommend.
W**H
Very Sensitive Leak Detector
I selected Inficon's TEK-Mate 705-202-G1 as my first refrigerant leak detector in preparation to enter the HVAC/R field. It's the only "real" leak detector I own (the other being an extremely inexpensive no-name halogen type). I haven't used it more than a handful of times, so take this review accordingly. I've used it in residential, commercial (walk-in cooler) and automotive applications so far. It's very sensitive -- maybe even too sensitive for its own good. Even on the low setting, I had a hard time pinpointing what was a very small leak in the evaporator coil of the walk-in box. I like the fact that it's made in the USA and came with name brand alkaline batteries, so you can get started right away. The built in alarm is very loud. You might like that if you're working in extremely (and I mean extremely) noisy machine rooms. I thought it was too loud for every other situation, and the constant wailing of the alarm during the sensor's start up period really got on my nerves. If I didn't think I'd invalidate the warranty by doing so, I'd pop it open and put something over the beeper to quiet it down a little.
D**Z
Works
It worked, we found the leak. Saved a bundle on HVAC tech call and repair.
G**A
Effective tool
You get what you pay for. This sniffer works like you expect, no false positives for me at least, it's a very effective tool. Stay away from the 25 dollar el cheapos, I have one of those and it went off on the carpet in my vehicle, and I'm pretty sure the floor mats did NOT have a leak. Just save your pennies and buy one of these.
A**R
Good value leak detector
Works as it should
D**E
No product support
After 2 years and used only 3 times it will not pass warm up cycle. Changed sensor, still never stops alarming after start up. Called Inficon and was told that I have to go through whoever I purchased from to be able to send in for repair. Not good support at all.
S**S
Great product
This device works well I use it everyday as I am an ac technition
G**F
Great product new in package
B**8
exelente producto , con calidads y prestigio . segunda adquision por mi parte ( el primero me lo robaron hace 1 ano atras ) recomendado Enero 2021
E**O
Dejó de funcionar como hago válida la garantía.
D**E
I was trying to chase down a very slow AC leak in my car was certain it was the compressor shaft seal or evaporator. Within 5 minutes I found the leak coming from my condenser which was replaced previously but was a defective part. Very happy with this tool !
A**K
Does everything I expected of it.
Trustpilot
3 days ago
5 days ago