Fieldpiece SMAN360 - 3 Port Digital Manifold with Micron Gauge The SMAN360 automatically calculates target superheat, so HVACR professionals don't have to worry about guesswork or manual calculations. WIth the SMAN360 you also get a built-in micron gauge with resolution from 50 to 9,999. Plus the vacuum gauge in the SMAN360 digital refrigerant manifold has a micron alarm which allows technicians to set the alarm to a chosen micron level, and when the vacuum reaches that level, the alarm will sound, freeing you up to keep working when pulling a vacuum. 3-Port Digital Manifold x Built Tough for HVACR Professionals Target superheat Automatically calculated from measurements taken No guesswork or manual calculations Superheat and subcooling calculated and displayed simultaneously Backlit display Micron gauge Alarm, stopwatch, and rate indicator 50 to 9,999 resolution In addition the SMAN series are the only manifolds with the ability to perform a linear adjustment of the pressure sensors based on refrigerant type, temperature, and pressure, and it's so easy, you can do it right in the field. By combining new technology and its rugged design with an intuitive, easy-to-use interface, the SMAN360 makes it easy for you to quickly maximize the efficiency of any A/C or refrigeration unit. And because they're built by the HVACR industry's leading innovator, you know it's packed with the features you want.