Compact and portable 12:1 ratio infra-red thermometer. Diagnoses heating/cooling problems and monitors the temperature of electrical motors, electrical panels, automotive exhausts and radiators etc. without contact. Manufactured with enhanced optics for delivering supreme accuracy between the temperature range -50 to 550degC (-58 to 1022F). Requires 1 x PP3 battery (code 38240). This thermometer features a 12:1 ratio, making it easy to use for professionals to diagnose heating/cooling problems and monitor temperatures of various components without contact. It is manufactured with enhanced optics for supreme accuracy within a temperature range of -50 to 550°C (-58 to 1022°F), and includes a maximum temperature alarm and a laser positional guide.