A vacuum gauge is an indispensable tool for every installer, before filling the cooling system with refrigerant, ensuring that the system is completely free of air and moisture and preventing refrigerant leakage or loss of efficiency. A vacuum gauge helps ensure that your system operates optimally and reliably even in the most challenging conditions.


Mastercool Digital Vacuum Gauge
Thermocouple sensor with spiral cable extended to 6.5 feet (2.6 meter). Response Time: 250 mSec.

DIGITAL VACUUM GAUGE
Mastercool is introducing a hand held unit using thermocouple technology. This vacuum gauge has been designed with the technician’s field environment in mind, allowing for self-calibration and a sensor that will not be damaged by small mists of oil. The Mastercool unit allows for a target vacuum range to be programmed with a light sensor indicator. Now you have the freedom to continue with your other work and come back to the system once you see the indicator light signaling your target vacuum.
 
Power: 9V DC battery (AC/DC Adapter Optional)
Battery Life: 36 hours
Vacuum Units: Micron, Torr, mTorr, mmHg, mBar, Pa



Mastercool Digital Vacuum Gauge with Bluetooth® Wireless Technology
Chemical resistant sensor for ease of cleaning. Capability to download free Mastercool Connect app. 2 AA batteries included.


DIGITAL VACUUM GAUGE WITH BLUETOOTH® WIRELESS TECHNOLOGY
A new compact hand-held digital vacuum gauge combines the most advanced features to provide quick and accurate responses every time. Utilizing a state-of-the-art glass beaded thermistor and temperature compensation, Mastercool is offering the latest technology to the HVAC/R technician.


 
Proof Pressure: 450 psi
Vacuum Units: Micron, Torr, mTorr, mmHg, mBar, Pa
Battery Life: 100+ continuous hours (depending on backlight use)
Weight: 0.3 lb (0.13 kg) without batteries / 0.5 lb (0.23 kg) with batteries
Dimensions: 1.9” x 6.3” x 1.4” (50 mm x 160 mm x 36 mm)