Testo 510 series hand-held meters are compact, electronic differential gas/air pressure gauges, with temperature compensation and adjustable barometric altitude compensation.

General specifications:

• Choice of units selectable: hPa, Pa, mm Hg, in. H₂O, in., Hg, psi, m/s, fpm
• Backlit LCD readout

Testo 510 differential features:

Range: 0 to 100hPa x 0.01hPa. Accuracy ±0.03hPa (0 to 0.30hPa), ±0.05hPa (-.31 to 1.00hPa), ±0.1hPa + 1.5% of scale (rest of range).

Supplied with connection ferrules for 4 to 6mm bore tubing, wrist strap, belt holder, magnetic clip for attachment to a metal surface and 2 x 1.5V AAA batteries. Overall 119 x 46 x 25mm L x W x D. Weight 90g.