Review on 📱 Testo 557s Kit: App Operated Digital Manifold with Bluetooth for HVAC Systems by Robert Castro
Great product for air conditioning repair tools
I love my Testo refrigeration meters. Batteries had to be changed before use. Temperature clamps are a bit difficult to figure out at first. After 4-5 uses you hang it up. Makes my job a lot easier.
Pros
- Excellent design
Cons
- 0
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