The Infrared Thermometer Models CA876 are non-contact infrared temperature measuring instruments. Features include a 3-1/2 digit backlit LCD, auto-hold function and auto power off (15 seconds). The MEAS button is used to extend the battery life by automatically stopping measurement temperature and holding the display reading. The Models CA876 feature a laser guide for precise measurements. Includes a K thermocouple input for taking temperature measurements, MIN and MAX recording features, an alarm feature which allows specified Lo or Hi values to be programmed and adjustable emissivity from 0.1 to 1.00. Applications: percent Electrical troubleshooting, percent Food safety and processing, percent Automotive repair and maintenance, percent Marine maintenance and repairs, percent Test faulty motor winding insulation, percent Test overheated high voltage transformers, percent Test terminals on circuit breaker panels, percent Perform HVAC energy audits. Temperature Range -4 degree to 1022 degree F or -20 degree to 550 degree C. Display resolution: 1 degree F or 1 degree C. Accuracy: +/-2 percent Reading or +/-6 degree F/3 degree C >/- 212 degree F(100 degree C). Response time: 1 second. Emissivity: Adjustable 0.10 to 1.00. Sensor: Thermopile. Optical Lens: Fresnal lens. Laser: < 0.5mW (670nm). Temperature range K type: -40 degree to 2000 degree F or -40 degree to 1350 degree C. Display resolution K Type: 1 degree F or 1 degree C or 0.1 degree F or 0.1 degree C (auto). Sensor: K thermocouple. Accuracy: -40 degree to 2000 degree F: +/-0.1 percent of Reading + 2 degree F plus t/c -40 degree to 2000 degree F: +/-0.1 percent of Reading +1 degree F plus t/c. 2000-count. Operating temperature: 32 degree to 122 degree F (0 degree to 50 degree C), <80 percent RH. Storage temperature: -4 degree to 140 degree F (-20 degree to 60 degree C), 0 to 80 percent RH without battery. Automatic. 9V Alkaline battery. Displayed when battery voltage is low. Measures 2-3/8" width by 6-51/64" height by 1-1/2" depth.