- Calculation of superheating and subcooling in real time: no manual calculation, which is prone to error
- Connect to smartphone/tablet app: remote monitoring and smart measurement documentation
- Precise external Pirani gauge for vacuum measurement, temperature-compensated leakage test, automatic ambient pressure measurement
- The 60 most common refrigerants are stored in the instrument, subsequent updates possible (via app)
What's in the box
testo 557 digital 4-way manifold including two clamp temperature probes, precise external Pirani gauge for vacuum measurement, transport case, calibration protocol, batteries and app (can be downloaded).