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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.

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Extech manuals

Latest manuals from manuals+ curated for this brand.

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 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 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 HD450 Datalogging Light Meter User’s Guide

November 24, 2023
Extech HD450 Datalogging Light Meter Introduction Congratulations on your purchase of the Extech HD450 Digital Light Meter. The HD450 measures illuminance in Lux and Foot candles (Fc). The HD450 is…

EXTECH STW515 Stopwatch Clock User Manual

November 16, 2023
User Manual Stopwatch/Clock with Backlit Display Model STW515 Introduction Thank you for selecting the Extech STW515 Water Resistant Stopwatch with Split Time, Alarm, and Clock features. Careful use of this…

Extech 412355A Current/Voltage Calibrator User Manual

User Manual
Official user manual for the Extech 412355A Current/Voltage Calibrator. Learn how to measure and source current and voltage, use memory functions, and understand specifications, warranty, and support information.

Extech ExStik Waterproof pH Meters PH100 & PH110 User Manual

User Manual
Comprehensive user manual for the Extech ExStik Waterproof pH Meters, models PH100 and PH110. Provides detailed instructions on operation, calibration, electrode maintenance, battery replacement, safety precautions, specifications, and troubleshooting for…

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Extech MG300-ETK Electrical Troubleshooting Kit User Manual

MG300-ETK • November 4, 2025
Comprehensive user manual for the Extech MG300-ETK Electrical Troubleshooting Kit, including the MG300 Multimeter/Insulation Tester, 42509 Infrared Thermometer, and MA430T AC Clamp Meter. Covers setup, operation, maintenance, and…