DescriptionWith the CL541-PLUS you can check and calibrate all your thermocouple instruments and measure thermocouple sensors. Automatic indication of connections on the display for simple hookups. Take it without worry into the shop, plant or field. It comes protected with a rubber boot and rugged, low profile switch. Easy to operate even in the dark areas of the plant with the backlit display. Stop carrying around a millivolt source and thermocouple tables, you can calibrate directly in temperature (°C and °F).