Dwyer - Model 475 Mk III - Handheld Digital Manometer - User Manual

Battery Installation: Remove the two screws holding the bottom endcap and remove it. Connect the battery to the enclosed battery clip, observing correct polarity. When replacing the cover be sure the rubber sealing gasket is properly seated in the gasket channel of the endcap. Note the endcap will only fit one way. The holes are slightly offset to center. Replace the screws, Do Not Overtighten.