The REED R3002 is a compact digital manometer for gauge and differential pressure measurement up to 5 psi, with roughly 0.3% full-scale accuracy. It offers 11 selectable pressure units, a backlit LCD with real-time clock timestamping, and max/min/average/data-hold functions, making it a practical tool for HVAC diagnostics and general low-pressure testing. It ships with a USB cable, PC software, tubing, and a carrying case for field use.