DMG-3 AC Manifold Gauge Set 2 Way Fits R134A R410A And R22 Refrigerants With Hoses Coupler Adapters+ Carrying Case ,Easy to Install

Pressure Measuring Range: -14.5-500psi/-14.5-800psi Operating Temperature and Humidity: -10~60; 35%~85%RH Resolution pressure: 0.5psi; temperature: ±1 Accuracy pressure: ±0.5%FS (22~28); temperature: ±1 Battery Life: six months