Accutools BluVac+ Micro ?Bluetooth Smart Wireless Capability0 to 25,000 Micron Range with 1 Micron ResolutionMeasures Vacuum in Microns, Pascals, Millibar, mmHg, and TorrLarge, high-visibility back-lit LCD displayLong Battery Life - Up to 100 Hours on Two ‘AAA' Alkaline Batteries Wireless Digital Micron Gauge The low-cost AccuTools BluVac+ Micro Wireless Digital Micron Gauge represents a breakthrough in economical vacuum measurement. Small and light enough to fit in a shirt pocket, the BluVac+ Micro has Bluetooth Smart wireless capability and is a full-featured basic micron gauge that utilizes our famous patented BluVac+ technology to provide the highest accuracy and dependability at the lowest possible cost. The BluVac+ Micro accurately and quickly measures vacuum in Microns, Pascals, Millibar, mmHg, and Torr with a resolution down to 1 micron. Sporting a large back-lit display, the BluVac+ Micro operates for up to 100 hours on two AAA batteries and at temperatures below freezing.The BluVac+ Micro can be operated stand-alone or in conjunction with an iOS or Android-compatible app.Possessing the same accuracy and reliability as the BluVac+ Pro gauge, the BluVac+ Micro is ideal for budget-conscious technicians without sacrificing performance.Innovative Oil Sensors and Self-Diagnostics ensure accuracy. The BluVac+ series of Micron Gauges are the only field-calibratable vacuum gauges that require no special equipment for calibration.The BluVac+ Micro comes supplied with everything you need for proper evacuation monitoring, including a coupler, carrying pouch, and batteries — you'll be able to hit the job running.