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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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Summary of Contents for 421501

Page 1: ... 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 0 1 1 ...

Page 2: ...n or oral is expressed or implied Specifications Display 3 1 2 digit LCD 2000 counts Battery Power Supply 9V DC battery Battery life 200 hours typical Dimensions Weight 7 5 x 3 6 x 2 1 192 x 91 x 52 5mm 11 7oz 365g Range Resolution 58 to 2000 o F 50 to 1300 o C 1 o or 0 1 o F o C Important Note The supplied thermocouple can only be used to measure temperature up to 500 o F 260 o C To measure highe...

Page 3: ...ching an object or in a liquid solution Read the temperature measurement on the LCD Important Note The supplied thermocouple can only be used to measure temperature up to 500 o F 260 o C To measure higher temperatures a high temperature Type K thermocouple must be used Selecting o C o F units of measure Press the o C o F key to select the desired temperature unit of measure Selecting the Resolutio...

Page 4: ...rews that secure the battery compartment 3 Open the compartment and replace the 9V battery 4 Secure the meter s battery compartment and rubber jacket before using the meter WARNING To avoid possible electrical shock disconnect the thermocouple before removing the battery cover Cleaning Use a damp cloth with a mild detergent to periodically wipe the meter housing and display area Do not use abrasiv...

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