Infrared & Wireless Thermometers Infrared Gun, -76 to +1022°F/-60 to +550°C, Non-contact surface temperatures, shatterproof, memory, 1-second response, maximum, minimum, difference and average with lock for continuous scanning, laser target illumination, distance:spot = 12:1, ± 4°F/2°C or 2% of reading accuracy, backlit, data-hold, one-button operation, battery status indication, ABS plastic, auto-off