The RIDGID Micro IR-200 Non-Contact Infrared Thermometer provides simple, quick and accurate surface temperature readings at the push of a button. Simply squeeze the trigger and point the ultra-sharp dual class II lasers at the surface being measured. Ultra-Sharp Dual Class II Lasers easily identify the surface area being measured. Has a 30 to 1 Distance To Spot Ratio, this allows you to take more accurate measurements from a farther distance. With adjustable emissivity to accurately measure the temperature of virtually any surface. Uses audible and visual, high and low alarms to quickly alert user to temperatures outside of the ranges that are set. It has a bright backlit display which can be toggled on in poorly lit areas and can be mounted on a tripod for repeatable, precise temperature measurements. Specification Temperature Range -50 to 1200C (-58 to 2192F), Distance To Spot Ratio 30 to 1. Response Time & lt150ms. Temperature Display Current Temperature & MAX Temperature. Measurement Units Fahrenheit & Celsius. Power Source 1 x 9V battery (supplied). Weight 0.20kg.