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❄️ Stay cool, catch leaks before they catch you!
The Mastercool 55900 Refrigerant Leak Detector features a heated tin oxide sensor that detects all common refrigerants with exceptional sensitivity down to 0.15 oz/year. Certified to SAE and EN standards, it offers a 15.5" flexible probe with an intelligent tip to reduce false alarms, multi-level LED indicators for real-time diagnostics, and a user-friendly interface with peak hold and adjustable sensitivity. Packaged with essential accessories and backed by U.S.-based support, it’s the go-to tool for HVAC and automotive professionals who demand precision and reliability.










| ASIN | B00RVZ6WXQ |
| Best Sellers Rank | 315,822 in Automotive ( See Top 100 in Automotive ) 1,709 in Fuel System Tools 6,706 in Diagnostic, Testing & Measuring Tools |
| Brand | Mastercool |
| Customer Reviews | 3.8 3.8 out of 5 stars (54) |
| Global Trade Identification Number | 00700376559002 |
| Included Components | leak detector, molded case, 2C batteries, test vial replacement filters |
| Item Dimensions | 26.4 x 6.1 x 39.4 centimetres |
| Item Type Name | Refrigerant leak detector |
| Item Weight | 1 Pounds |
| Manufacturer | Mastercool |
| Manufacturer Part Number | 55900 |
| Material | Tin Oxide |
| Model Number | 55900 |
| Number of Items | 1 |
| Product Warranty | 1 year |
| Specific Uses For Product | refrigerant leak detection, HVAC, automotive |
| Style Name | Intellasense II – Heated Tin Oxide Sensor |
| UPC | 700376559002 |
| Unit Count | 1.0 count |
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