Designed by electricians. Engineered by Fluke. The Fluke 116 digital multimeter delivers the capabilities professionals demand to troubleshoot and repair HVAC (heating, ventilation and air conditioning) systems. It has everything you need in an HVAC meter, including temperature and microamp measurements to help you quickly troubleshoot problems with HVAC equipment and flame sensors. The Fluke 116 comes with the Fluke 80BK-A integrated DMM temperature probe. The microamp function allows flame sensor measurement down to 0.1 microamps. The AutoV/LoZ function prevents false readings caused by ghost voltage. The Fluke 116 also has a large white LED backlight for work in poorly lit areas. It measures resistance, continuity, frequency, and capacitance and provides Min/Max/Average readings with elapsed time to record signal fluctuations. Fluke 116 multimeters are independently tested for safe use in CAT III 600V environments. And check out other members of the Fluke 110 family: the Fluke 113 Utility Multimeter, the Fluke 114 Electrical Multimeter, the Fluke 115 Multimeter and the Fluke 117 Commercial Electrician.s Multimeter. Key Features: Digital multimeter designed specifically for HVAC professionals; Includes built-in thermometer to measure temperature from -40±C to 400±C (-40±F to 752±F); Provides microamps to test flame sensors; Features low input impedance to helps prevent false readings due to ghost voltage; Presents a large white LED backlight for working in poorly lit areas - Product Overview: The Fluke 116 DMM provides the features you need to quickly troubleshoot HVAC equipment; The Fluke 116 was specifically designed for HVAC professionals. It has everything you need to quickly troubleshoot problems with HVAC equipment and flame sensors, including a built-in thermometer to measure temperatures up to 400±C (752±F) and microamps to test flame sensors. The Fluke 116 also measures resistance, continuity, frequency, and capacitance. And the large white LED backlight makes it easy to see results even in poorly lit areas.; Fluke 116 multimeters are independently tested for safe use in CAT III 600 V environments. - Other Useful Features: Measures resistance, continuity, frequency, and capacitance; Provides Min/Max/Average to record signal fluctuations; Comes with a holster with probe holders for easy storage; Features a compact ergonomic design for one-handed operation; Fits into optional ToolPak™ magnetic hanger for hands-free operation; CAT III 600 V safety rated - Includes: 4 mm silicone test lead set; 80BK Integrated Temperature probe; Holster; Installed 9 V battery; User manual - Additional Features: 1. All AC voltage ranges except Auto-V/LoZ are specified from 1% to 100% of range. Auto-V/LoZ is specified from 0.0 V.2. Temperature uncertainty (accuracy) does not include the error of the thermocouple probe.3. Frequency is AC coupled, 5 Hz to 50 kHz for AC voltage. Frequency is DC coupled, 45 Hz to 5 kHz for AC current.4. Temperature Range/Resolution: -40±F to 752±F / 0.2±F.