Pocket IR Thermometer - The SIP3 is great for quick air register temps. With a 1:1 field of view, the compact design makes taking accurate temperature readings easier, better and faster. The SIP3 has a 1 degree fahrenheit/celsius resolution and has a -27 to 230 degree fahrenheit temperature range and features Auto-Power Off (APO) to conserve battery life. It also has a rubberized grip, low battery indicator, and is water resistant