Monitoring the temperature of your electronics is one of the most critical steps of setting up any system and the key to long-lasting electronics. You can eliminate the guessing with the HT-188 Infrared Laser Thermometer from Hobbystar. Ergonomic design and built-in laser pointer provide quick, precise temperature readings of motors. ESC's, servos etc. Easy to read color display. Features: Laser pointer eliminates guessing Color display Selectable between C and F Data hold Low-battery indication Auto-power off Selectable between C and F Specifications: Temp Range: -50C~380C / -58F~716F Temp Accuracy: +/- 2% Emissivity: Adjustable from 0.1-1.0 Distance to Spot ratio: 13:1 Response time and Wavelength: 1s Power: 9V battery (included)