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Extech Instruments Manuals & User Guides

Extech Instruments manufactures handheld test and measurement tools, including thermal imagers, multimeters, and environmental meters for professional and industrial use.

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

Extech Instruments Support

Official site: https://www.extech.com
General support: https://www.flir.com/support/
Warranty & registration: Warranty info · Register a product
Support phone: +1 877-239-8324 — Mon-Fri 8:30am - 5:00pm EST
Contact form: Contact manufacturer support

Extech Instruments manuals

Latest manuals from manuals+ curated for this brand.

EXTECH RHT510 HygroThermometer User Manual

June 24, 2025

EXTECH RHT510 HygroThermometer Product Usage Instructions Introduction Thank you for selecting the Extech Model RHT510. This hand-held device measures Relative Humidity, Air temperature, Dew point temperature, Wet bulb temperature, and…

EXTECH CG204 Coating Thickness Tester User Manual

November 21, 2024

EXTECH CG204 Coating Thickness Tester Introduction Congratulations on your purchase of the Extech CG204 Coating Thickness Tester. The CG204 is a portable meter designed for non-invasive coating thickness measurements. The…

EXTECH CO250 Portable Indoor Air Quality User Guide

November 21, 2024

CO250 Portable Indoor Air Quality

Extech CB10 Tests Receptacles and GFCI Circuits User Guide

October 9, 2024

Extech CB10 Tests Receptacles and GFCI Circuits Introduction Congratulations on your purchase of the Extech Model CB10 Circuit Breaker Finder and Receptacle Tester. This instrument is shipped fully tested and…

EXTECH HD400 Heavy Duty Light Meters User Guide

October 6, 2024

EXTECH HD400 Heavy Duty Light Meters Product Information Specifications: Fc Range: Varies based on model Lux Range: Varies based on model Accuracy: Model specific Max Resolution: Model specific Datalogging (HD450):…

EXTECH SDL720 Heavy Duty Differential Pressure Manometer User Manual

August 17, 2024

EXTECH SDL720 Heavy Duty Differential Pressure Manometer Specifications Model: SDL720 Type: Heavy Duty Differential Pressure Manometer Display: LCD Display Power Source: Batteries or AC adaptor Connectivity: RS232 output jack Memory:…

EXTECH BR450W-D Dual HD Wireless Borescope User Manual

April 22, 2024

User Manual Wireless Borescope MODEL BR450W-D Introduction Thankyou for selecting the Extech Dual HD Wireless Borescope. This device offers forward and side view high definition cameras. The camera lenses include…

Extech 40180 Tone Generator and Amplifier Probe User Manual

March 22, 2024

Extech 40180 Tone Generator and Amplifier Probe Introduction Congratulations on your purchase of Extech’s Model 40180. This tone generator and amplifier probe set is used to quickly trace and identify…

EXTECH MO280 Moisture Meter User Manual

January 23, 2024

EXTECH MO280 Moisture Meter User Manual Introduction Congratulations on your purchase of the Extech MO280 Moisture Meter. This device non-invasively measures and displays relative moisture content in wood, building products,…

EXTECH 45170 4 In 1 Temperature Airflow Environmental Meter User Manual

December 6, 2023

EXTECH 45170 4 In 1 Temperature Airflow Environmental Meter User Manual Introduction Congratulations on your purchase of Extech’s Model 45170 4-in-1 Humidity, Temperature, Airflow and Light Meter. With careful use,…