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Extech Manuals & User Guides

Extech Instruments is a leading manufacturer of handheld test and measurement tools, including multimeters, clamp meters, thermometers, and environmental testers.

Tip: include the full model number printed on your Extech label for the best match.

Extech Support

Official site: https://www.extech.com
General support: https://support.flir.com
Warranty & registration: Warranty info · Register a product
Support phone: +1 781-890-7440 — Monday–Friday, 9:00 AM – 5:00 PM EST
Support email: support@extech.com
Contact form: Contact manufacturer support

Extech manuals

Latest manuals from manuals+ curated for this brand.

EXTECH 445713 Big Digit Indoor/Outdoor Hygro-Thermometer User Guide

September 30, 2021

EXTECH 445713 Big Digit Indoor/Outdoor Hygro-Thermometer User Guide Simultaneously displays indoor/outdoor temperature and RH Selectable temperature units oC/oF MIN/MAX memory and recall For wall-mount or desktop use Introduction Congratulations on…

EXTECH Current / Voltage Calibrator 412355A User Manual

September 15, 2021

EXTECH Current / Voltage Calibrator 412355A User Manual Model 412355A Additional User Manual Translations available at www.extech.com Introduction Congratulations on your purchase of the Extech Current/Voltage Calibrator. The Model…

EXTECH 45118 Mini Thermo-Anemometer User Manual

August 29, 2021

EXTECH 45118 Mini Thermo-Anemometer Operation Select the desired units for air velocity and temperature by momentarily pressing the UNITS/MODE key from a powered down condition. The LCD will show temperature…

EXTECH Mini Hygro Thermo-Anemometer User Manual

August 17, 2021

EXTECH Mini Hygro Thermo-Anemometer User Manual Introduction Congratulations on your purchase of Extech’s Model 45158 Anemometer. The dual display indicates Air Velocity and Humidity, Dew Point, Ambient Temperature, or Temperature…

EXTECH Digital Multimeter User Manual

August 8, 2021

Digital Multimeter MODEL EX410A USER MANUAL Introduction Congratulations on your purchase of the Extech EX410A Multimeter. This meter measures AC/DC voltage, AC/DC Current, Resistance, Diode Test, and Continuity plus Thermocouple…

EXTECH UV Light Meter User Manual

August 1, 2021

USER MANUAL UV Light Meter Model UV510 Additional User Manual Translations available at www.extech.com Introduction Thank you for selecting the Extech Model UV510 UV Light Meter. This device measures UVA…

Extech Mini Thermo-Anemometer User Manual

July 29, 2021

Extech Mini Thermo-Anemometer Introduction Thank you for selecting the Extech 45168CP. This instrument measures Wind Speed, Temperature, RH%, Dew Point, Wet Bulb, and Wind Chill. The built-in 360o Compass also…

EXTECH Carbon Dioxide Meter User Manual

July 23, 2021

USER MANUAL Carbon Dioxide Meter Model CO240 Additional User Manual Translations available at www.extech.com Introduction Thank you for selecting the Extech Instruments Model CO240. The CO240 measures Carbon Dioxide (CO2),…

EXTECH pH Conductivity TDS Salinity Temperature Meter User Manual

July 8, 2021

EXTECH pH Conductivity TDS Salinity Temperature Meter Introduction Congratulations on your purchase of the ExStik® EC500 pH/Conductivity/Total Dissolved Solids (TDS) / Salinity meter. With the EC500’s dynamic cell-constant technology it…

EXTECH Temperature and Humidity Datalogger User Manual

July 5, 2021

EXTECH Temperature and Humidity Datalogger User Manual Additional User Manual Translations available at www.extech.com Introduction Model 42270: Temperature and Humidity Datalogging Module Model 42275: 42270 Module, Docking station, Software CD…