Ultra-Wide Measurement Range. Precision-engineered with ±241.3kPa/±35PSI differential pressure sensor delivers laboratory-grade accuracy (±0.3% FS) for HVAC diagnostics, automotive repair, and industrial applications. Measures positive/negative/differential pressure with ±0.25% repeatability. Ideal for brake boosters, AC systems, gas lines, and exhaust pressure testing. Professional-Grade Automotive/HVAC Kit. Complete with industrial-grade rubber guard and 6mm or 1/4"" NPT metal adapters. Perfect for technicians testing: ✓ Intake manifold vacuum ✓ AC refrigerant pressure ✓ Brake booster systems ✓ Crankcase ventilation ✓ Hydraulic line pressure ✓ Combustion analyzer hookups Smart Measurement Modes & 11 Units. Switch seamlessly between PSI, kPa, bar, mmHg, inH2O and 7 other units. Advanced MAX/MIN/AVG tracking with real-time trend monitoring. Auto-calibration function ensures consistent accuracy across temperature ranges (-10°C to 60°C). 48-Record Data Logger & Hold Function. Never lose critical readings - stores 48 pressure measurements with timestamp overwrite protection. Instant HOLD button freezes dynamic pressures. Field-Ready Durability Features. High-grade LCD with 180° adjustable backlight works in dark engine bays. IP54 splash-resistant housing withstands shop environments. Power modes: 9V battery (30hrs runtime), Auto-shutdown preserves battery during extended jobs. Our Digital Manometer Kit is a Professional Precision-engineered with ¡À241.3kPa/¡À35PSI differential pressure sensor delivers laboratory-grade accuracy (¡À0.3% FS) for HVAC diagnostics, automotive repair, and industrial application. Perfect for technicians testing: 1. Intake manifold vacuum< /br> 2. AC refrigerant pressure 3. Brake booster systems 4. Crankcase ventilation 5. Hydraulic line pressure 6. Combustion analyzer hookups Package includes: Manometer Kit (with tool box) x 1, 9V battery x 1