Features:Display: 4000 countsBuilt-in Sound Level Meter, Light Meter, Ambient Temperature and Humidity TesterLarge dual LCD DisplayTests AC/DC Voltage and Current, Resistance, Frequency, Duty Cycle CapacitanceDiode Check and Continuity TestType K thermocouple contact temperature measurementData Hold and Relative MeasurementDisplay Back LightAuto Ranging?? / ?H SelectionLow Battery Display