State-of-the-art: The testo 557s digital 4- valve manifold replaces multiple HVAC tools and was developed to efficiently lighten your workload and deliver the most accurate results possible | 4 Hoses included: This kit includes 3 high quality hoses in blue, red and yellow, each 5 ft. long, SAE (straight and 45 angle), suitable for all common refrigerants | 552i Micron Gauge: The testo 552i achieves precise deep vacuum measurements down to single digit resolutions andprovides notifications when the evacuation targetis met | 115i Thermometer: Thanks to a grip of up to 1.5, the wireless pipe clamp thermometer provides quick and convenient temperature and flow and return temperature measurements of pipes | Smart App: Take advantage of clearly visualized documentation from a smartphone or tablet. Remotely operate service and maintenance tasks and send results directly from the job site

testo 557s Set (includes 2x 115i and 1x 552i) Remote and accurate measurements of pressure, vacuum and pipe temperature The testo 557s Kit is the life-saving tool for every HVAC technician. It replaces a number of tools in the A/C and refrigeration industry and measures pressure, temperature and superheating as well as subcooling fast and reliably. Thanks to its smart Bluetooth integration, data can be measured, stored and evaluated reliably and efficiently from afar, thus saving precious time and resources. Technical Data: testo 557s: Temperature measuring range: -58 to +302F / - 50 to +150C Temperature measurement accuracy: 0.9 F / 0.5 C Temperature measurement resolution: 32.2 F / 0.1 C Pressure measuring range: -15 to 870 psi / -1 to 60 bar Pressure measurement accuracy: 0.5 % of full-scale value Pressure overload relay: 943 psi / 65 bar Vacuum measuring range: 0 to 20000 micron testo 115i: Measuring range: -58 to 302 F / -50 to +150 C Accuracy: 2.3 F (-4 to 185 F) Battery life: 150 hours Battery type: 3 x AAA Weight: 4.49 oz. / 127.4 g Dimensions: 7 x 4 x 1 in. / 183 x 90 x 30 mm testo 552i: Measuring range: 0 to 0.39 psi; 0...