If you use thermocouple meters, you need a way to check their accuracy. This brand new calibrator offers a great value for the price and you won't find anything easier-to-use. Quickly dial-in any temperature in 1° increments using the digital dial. Press the knob as you turn and you get even faster dialing. Easily beats the complexity and slowness of other digital calibrators. You'll get to your precise setting faster with no diddling around. There's no complicated programming or tedious manual-reading. The EZ-Check function stores three temperatures of your choice for instant recall. Use these for fast checking of zero and span or any critical temperatures that are used repeatedly. The 520 is offered in eight popular thermocouple types. Choose the one you need when ordering. Each unit is fitted with a common mini-jack. A coiled connecting cable is available separately or use your own cables. A factory certificate of compliance is shipped with each unit. An optional traceable certificate may be ordered with actual test data.