Fluke 116 digital multimeter fluke fluke 116 the fluke 116 combines the benefits of a multimeter with a digital thermometer this digital multimeter is value priced and is packed with great features for electrical electronic and temperature troubleshooting problems with hvac equipment and flame sensors br br it will measure superheat and subcooling measure key temperatures and pressures you will be able to detect problems like a clogged filter drier undercharge overcharge faulty meter