

🔧 Spot leaks like a pro—because every drop counts!
The Refrigeration Technologies RT100S Big Blu Micro Leak Detector is a professional-grade, non-corrosive solution designed to detect micro leaks as small as 0.65 oz/year. NSF certified for safe use around food, it works with all types of refrigerant gases, making it an essential tool for HVAC technicians and savvy DIYers aiming for precision and reliability.





























| ASIN | B082MQ88KR |
| Alarm | Vibration |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #19,861 in Automotive ( See Top 100 in Automotive ) #8 in Air Conditioning Leak Detection Tools |
| Brand | AMZ-Warehouse |
| Customer Reviews | 4.7 4.7 out of 5 stars (65) |
| Date First Available | April 13, 2023 |
| Included Components | Micro Leak Detector |
| Item Package Quantity | 1 |
| Item Weight | 2.35 pounds |
| Item model number | RT100S |
| Manufacturer | Refrigeration Technologies |
| Measurement Accuracy | 0.65 |
| Number of Items | 1 |
| Operating Humidity | 95 percent |
| Package Dimensions | 11.69 x 3.58 x 3.31 inches |
| Part Number | RT100S |
| Power Source | Battery Powered |
N**Y
Good Stuff
Used during a DYI four zone Mini-Split heat pump install. Did not detect any leaks. Good to go.
M**L
AC, refrigerant leaks
I had my new mini-split system vacuumed down, 3-stage pressure leak test and they apparently didn't follow the makers instructions which clearly note the high pressure test is necessary, yes it is This system worked perfectly for a few months then the cooling performance stated to diminish. After a year catting the AC service company and the makers tech support I decided to complete the high pressure test myself After 2 hours into the 3rd and finally 550 psi test, the ac psi gauge didn't move. However using this wonderful spray I detected a small slow leak and a micro leak. Now I'll inform the AC company and the maker. The trouble-shooting with the makers tech support failed to suggest to check the systems refrigerant psi simply because there wasn't an error code. A waisted year with no cooling or heating. This is a great product and it does cling to the copper lines extremely well over a period of time M
B**S
Best bubble I've used
This is the good stuff. I use it on HVAC, car tires, hoses, etc. It stays put and makes finding leaks easy. The bottle could be better designed, it is very slow, but it holds up.
S**S
Outstanding product
Great product. Shipping issue with leaking bottle, a cardboard mess; seems like a simple plastic bag would be helpful.
J**.
Great product!
This stuff works great!
J**P
Works really well
I love this stuff. Works exactly as it’s meant too. Big bubbles quickly when there is a leak
M**C
Works
Works
A**R
The best leak detector
Can beat the thickness of bubble solution. Way better than dawn and water
Trustpilot
1 month ago
2 weeks ago