Handheld digital manometer; measures positive, negative and differential pressure; dual calibration with english and metric units; english range 0-40.0 in w.C.; metric range 0-9.95 kpa; pressure 11 psig/75kpa; 0.5 per cent accuracy at full scale; operating temperature range 32-122 deg. F; power source 9 volt alkaline batter; 0.5 in. Lcd display; aluminum case
