WISSCOOL Digital Vacuum Gauge, HVAC Micron Gauge Tester, HVAC Vacuum Pressure Gauge, 0-75,000 Microns, 7/16-20 UNF, 4 Units(Microns, mbar, inHg, pa), 1/4" SAE Extension Connector and T-Connector

High-Precision Micron Gauge – Designed for HVAC professionals, this digital vacuum gauge accurately measures system vacuum levels from 0–75,000 microns, ensuring reliable readings for evacuation and leak testing. Wide Application for HVAC Systems – Compatible with R454b,R134a,R1234yf,R410A, R32 and other refrigerants, this micron gauge HVAC tool is ideal for air conditioning, refrigeration, and heat pump systems, helping technicians achieve precise performance. User-Set Audible Alarm – Features an adjustable alarm value that alerts you once the desired micron level is reached, saving time and preventing over-evacuation during system service. Durable & Convenient Connections – Equipped with a 7/16""-20 UNF port, 1/4"" SAE extension connector, and T-type connector, this vacuum gauge ensures secure and flexible installation for various service setups. Reliable Digital Display – The clear LCD screen provides instant, easy-to-read vacuum pressure data, making this HVAC vacuum gauge an essential tool for accurate system maintenance and troubleshooting