User's Guide
Type K Digital Thermometer
Model 421501
Introduction
Congratulations on your purchase of the Extech 421501 Type K Digital Thermometer.
This water resistant meter measures temperature with a Type K thermocouple. The
thermocouple attaches to the meter with a sub-miniature plug. The meter’s display is
backlit and includes a Data Hold feature. Other features include Max Temperature and
selectable units/resolution. This meter is shipped fully tested and calibrated and, with
proper use, will provide years of reliable service.
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