Digital Vacuum Gauge Tester HVAC 1/4" SAE HVAC Pressure Tester Meter Gauges ±0.2% Accuracy & 0.01 Resolution, Torr/mbar/inHg/Hpa, 3" Backlit LCD, Leak Test, Alarm, Auto Calibration & Temp Compensation

【Packing List】The digital vacuum gauge set includes a vacuum gauge, a 1/4" SAE refrigerant charging hose, a 1/4" SAE tee joint, 4pcs 1.5V AAA batteries and an user manual. 【3-Year Product Service & FCC/CE/ROHS Certification】Our vacuum gauge hvac is FCC, CE, and RoHS certified, guaranteeing its quality and safety for professional use. We aim at trying our best to offer you the best product and services to make you unworried before/after the purchase. We promise a 3-year product service. If you have any questions or doubts, our professional technical team will help you solve the problem. 【Auto Power Off & Low Battery Prompt】If the vacuum gauge is in a state of no operation for 5 minutes, it will automatically turn off the backlight. If the vacuum gauge is not operated for 30 minutes, it will automatically shut down, helping you save power and extend battery life. Digital vacuum meter hvac is powered by 4pcs 1.5V AAA batteries(included), the battery symbol on the screen will flash to remind you when the battery is about to run out. 【Foldable Hook & Anti-slip Design & ABS Material】The vacuums gauge hvac is designed with a hook on the back to free your hands. Silicone pads are used on both sides of the vacuum gauge, which is non-slip and comfortable to hold. The digital vacuum gauge hvac is made of superior ABS material, dust-proof and impact-resistant, suitable for various field tests. 【Screen Prompt & Buzzer Alarm】In evacuation mode, set the target pressure value and the max target pressure value, and then start vacuuming. When the current pressure is close to the maximum target pressure value, the "Pressure Max Target" on the screen will flash. When the current pressure is greater than the maximum target pressure value, the hvac vacuum gauge digital will sound a beep alarm. 【4 Pressure Units & 3 Temperature Units & 3" Large LCD Display with Backlight】The 3-inch backlit LCD screen of digital vacuum gauge provides you with clear readings. It adapts to various scenarios, ensuring easy operation in sunlight as well as dim conditions. The digital hvac vacuum tester supports 4 pressure units: mbar, Hpa, Torr, inHg, and 3 temperature units: °F, °C, K. Data can be directly output without conversion. NOTE: It does NOT contain Micron option. 【High Precision Sensor & Temperature Compensation】Vacuum meter adopts an advanced high-precision sensor, which respond quickly and accurately measure micro pressure changes in a vacuum. Measurement Range: 0~50mbar; Accuracy: ±0.2% or ±6mBar; Resolution: 0.01mbar, 0.01Hpa, 0.01Torr, 0.001inHg. It can automatically adjust results through temperature sensor and microprocessor to offset impact of temperature changes on accuracy, significantly improving accuracy in different temperature environments. 【Vacuum Mode & Pressure Leak Test & Automatic Calibration】The digital vacuum tester hvac has two modes. Evacuation mode helps you monitor the pressure during the vacuuming process, assessing the current vacuum state. Pressure leak test helps you test the tightness of HVAC and refrigeration systems, and can also determine the vacuum pump quality of the evacuation. Our vacuum meter has automatic calibration function, allowing measurements at different altitudes without manual calibration. 【Wide Application】Digital vacuum gauges are suitable for monitoring vacuum and pressure changes in HVAC systems, air conditioning systems, refrigeration systems and heat pump systems. vacuum gauges hvac are widely used in automotive, pharmaceutical, laboratory, industrial production, chemical, food and other industries. Digital vacuum tester is an essential tool for HVAC technicians, automotive specialists, laboratory scientists, and more. Your projects deserve nothing less!. 【Professional Vacuum Gauge】Digital vacuum gauges monitor the vacuuming of HVAC system and heat pump system dynamically. It measures real-time pressure when refrigeration system is evacuated, helping you to accurately judge dehumidification degree of the system and removal degree of impurities (oil, external gas, etc). Vacuum gauge needs to be used with vacuum pump,and can also be used with refrigerant gauge. Note: Vacuum pump requires above 1/3 HP power or 3×10⁻¹ Pa (0.3 Pa) ultimate vacuum.