The REED R3030 is a digital gauge/differential pressure manometer rated up to 30 psi (60 psi max), offering the same 11 selectable measurement units and roughly 0.3% full-scale accuracy as other models in the R30 series. Its backlit LCD shows pressure alongside a real-time clock, with data-hold, low-battery warning, and auto shut-off for reliable field use. It's suited to HVAC, pneumatic system checks, and general industrial pressure testing where a mid-range psi ceiling is needed.