Saysurey Digital Vacuum Gauge Kit & Valve Core Removal Tool with Dual Size 1/4" & 5/16" Port, 0-75000 μmHg HVAC Vacuum Pressure Gauge with 20 Cores & Adapters for Mini Split AC Repair

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상품 특징

• Evacuation Kit: includes 1 high precision digital micrometer gauge (0-75000 μmHg), 1 vacuum rated valve core removal tool (VCRT) with 1/4" 5/16" ports, 1 brass tee, 1 dual head adapter, and 20 replacement valve cores; A complete set for HVAC technicians to measure deep vacuum and replace cores under pressure without losing refrigerant
• Professional Accuracy: equipped with a high sensitivity sensor, this digital vacuum gauge delivers accurate readings from 75, 000 μmhg (atmospheric pressure) down to 0 μmhg; With a precision of ±10 μmhg or ±10%, it is ideal for leak detection and evaluating evacuation quality in HVAC and refrigeration systems; Resolution reaches 1 μmhg under 30, 000 μmhg, ensuring reliable performance even in high precision tasks
• Dual Calibration Modes: supports both full scale and zero calibration for lasting accuracy; To calibrate under atmosphere, hold “SAVE/CAL” for 3 seconds until “------” appears; For zero calibration, connect to a vacuum system, wait for 0.1 Pa, then hold “SAVE/CAL” until “0.1 Pa” displays; Ideal for professionals needing consistent precision
• Backlit LCD Design: the large screen with a 0.5s refresh rate ensures data visibility in dark attics or basements; The backlight turns off after 20s to SAVE power, while the auto shutdown kicks in after 10 minutes of inactivity; The gauge is compact and battery operated (3 AA, not included), making it portable for field service
• HVAC Build: comes with a universal 1/4'' flare (7/16-20 UNF) connection and supports multiple departments: mbar, mmhg, μmmhg; The gauge can withstand up to 14 PSI (0.1 MPa) and operates efficiently from 0–50°C (32–122°F); It's a tool for HVAC technicians, refrigeration maintenance professionals, and vacuum system monitoring; Note: only suitable for atmospheric environments—avoid refrigerants or reactive gas

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