[Protect Work Surfaces]: The pinless moisture meter ensures your walls and projects remain unscathed by pinholes, scuffing, and scratching while accurately measuring moisture levels. [Accurate Measurement]: precise readings by keeping fingers on the green rubber grips and away from the pad scanning area, as nearby metal or fingers can influence the pinless moisture meter readings. [Care and Maintenance]: Store the instrument in a stable, dust-free environment away from direct sunlight when not in use. Remove the battery if the device be stored for over a month or when the low battery power symbol appears on the display. [WARM TIPS]: This pinless moisture meter readings can be influenced by nearby metal, or your own fingers. Keep fingers on the green-rubber grips, well clear of pad scanning(sensor pad) area. The device automatically powers off after 5 minutes of inactivity to conserve battery life.