The ideal tool for measuring surface temperatures of rotating, hard-to-reach, electrically live, or dangerously hot targets. For preventative maintenance tasks, this instrument will cut measurement time to almost zero with the ability to take a temperature reading in less than one second. Just press the green button and it comes alive. Targeting objects is easy with the bright laser beam. Even in the dark, the display is easy to read with its backlit screen and clearly supplies data at a glance. Automatic sleep mode after 7 seconds extends battery life. Shock-absorbing holster increases ruggedness. Temperature range is 0 to 525°F (-18 to 275°C) with 0.5°F (0.2°C) resolution. Distance-to-spot ratio is 8:1. Comes with 9V alkaline battery.The ideal tool for measuring surface temperatures of rotating, hard-to-reach, electrically live, or dangerously hot targets. For preventative maintenance tasks, this instrument will cut measurement time to almost zero with the ability to take a temperature reading in less than one second. Just press the green button and it comes alive. Targeting objects is easy with the bright laser beam. Even in the dark, the display is easy to read with its backlit screen and clearly supplies data at a glance. Automatic sleep mode after 7 seconds extends battery life. Shock-absorbing holster increases ruggedness. Temperature range is 0 to 525°F (-18 to 275°C) with 0.5°F (0.2°C) resolution. Distance-to-spot ratio is 8:1. Comes with 9V alkaline battery.