EXTECH Manuals & User Guides

User manuals, setup guides, troubleshooting help, and repair information for EXTECH products.

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

EXTECH manuals

Latest posts, featured manuals, and retailer-linked manuals for this brand tag.

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 meter uses two measurement methods: magnetic induction (for ferrous metal…

Brand: EXTECH

EXTECH CO250 Portable Indoor Air Quality User Guide

November 21, 2024

CO250 Portable Indoor Air Quality User's Guide CO2 Meter Model CO250 Find Quality Products Online at: www.GlobalTestSupply.com sales@GlobalTestSupply.com Introduction Congratulations on your purchase of this Model CO250 Meter. This meter measures CO2 (Carbon Dioxide) levels, air temp., dew point, wet…

Brand: EXTECH

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 calibrated and, with proper use, will provide years of reliable…

Brand: EXTECH

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): Up to 16,000 readings PC interface: Available on HD450 model…

Brand: EXTECH

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: SD card slot Additional Features: Backlight, Hold function, Zero adjustment…

Brand: EXTECH

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 adjustable LED lights for viewing in dark and dimly lit…

Brand: EXTECH

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 cables or wires within a group and also to check…

Brand: EXTECH

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, and other materials. The MO280 can also detect moisture behind…

Brand: EXTECH

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, this meter will provide years of reliable service. Meter Description…

Brand: EXTECH

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 a Datalogger and includes a PC interface and WindowsTM compatible…

Brand: EXTECH

Extech PH220 Waterproof Palm pH Meter User Manual

User Manual • January 11, 2026

User manual for the Extech PH220 Waterproof Palm pH Meter. Covers introduction, meter description, operation, calibration, measurement, storage, battery replacement, maintenance, troubleshooting, and specifications.

Brand: Extech

Extech PRC15 Current/Voltage Calibrator User Manual

manual • January 11, 2026

User manual for the Extech PRC15 Current/Voltage Calibrator, detailing operation, specifications, safety, and maintenance. Includes instructions for measurement and sourcing modes.

Brand: Extech

Manuel de l'utilisateur Extech RHT20 : Enregistreur de données d'humidité et de température

User Manual • January 10, 2026

Manuel d'utilisation détaillé pour l'enregistreur de données d'humidité et de température Extech RHT20, couvrant l'installation du logiciel, le fonctionnement, l'entretien, les spécifications techniques, la garantie et les informations de contact.

Brand: EXTECH

Extech CO250 CO2 Meter User's Guide - Indoor Air Quality Measurement

User's Guide • January 3, 2026

Comprehensive user's guide for the Extech CO250 portable CO2 meter, detailing its features, operation, specifications, calibration procedures, and troubleshooting tips for accurate indoor air quality monitoring.

Brand: Extech

EXTECH LCR200 Digital LCR Meter User Manual

User Manual • December 28, 2025

User manual for the EXTECH LCR200 Digital LCR Meter, detailing its features, operation, specifications, and warranty information.

Brand: EXTECH

Manuel d'utilisation du télémètre laser Extech DT500

User Manual • December 11, 2025

Manuel complet pour le télémètre laser Extech DT500, couvrant les fonctionnalités, la sécurité, les mesures de distance, superficie, volume, inclinaison, et plus encore.

Brand: Extech

Extech 412355A Current/Voltage Calibrator User Manual

User Manual • December 10, 2025

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.

Brand: EXTECH

Extech ExStik Waterproof pH Meters PH100 & PH110 User Manual

User Manual • December 9, 2025

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 these high-accuracy pH testing devices.

Brand: EXTECH

Extech 445815 Humidity Alert II User Manual: Humidity, Dew Point, and %RH Alarms

guide • December 7, 2025

User's guide for the Extech 445815 Humidity Alert II, a remote probe hygro-thermometer with dew point measurement and programmable high/low %RH alarms. Includes operation, calibration, specifications, and safety cautions.

Brand: Extech

Extech MO25 Moisture Meter User Guide - Measure Wood, Brick, Concrete Humidity

User Guide • November 27, 2025

User guide for the Extech MO25 moisture meter. Learn how to measure moisture content (%WME) in wood, brick, concrete, paper, and fabric, and trace leaks. Includes operation, specifications, and battery replacement instructions.

Brand: Extech

Extech 382275/382276 Switching DC Power Supply User Manual

User Manual • November 25, 2025

Comprehensive user manual for the Extech 382275 (120V) and 382276 (230V) Single Output Laboratory Grade Switching DC Power Supply, covering operation, safety, specifications, and remote control features.

Brand: EXTECH

EXTECH CO200 Carbon Dioxide Monitor User Manual for Indoor Air Quality Monitoring

User Manual • November 22, 2025

This user manual provides detailed information on the EXTECH CO200 Carbon Dioxide Monitor, designed for indoor air quality (IAQ) monitoring. It covers features, operation, setup, calibration, specifications, and troubleshooting for measuring CO2 levels, air temperature, and relative humidity.

Brand: Extech

Extech 445703 Big Digit Indoor Humidity & Temperature Meter User Manual

445703 • November 5, 2025 • Amazon

Comprehensive instruction manual for the Extech 445703 Big Digit Indoor Humidity and Temperature Meter, covering setup, operation, maintenance, and specifications.

Brand: Extech

Extech SDL200 Four-Channel Thermometer SD Logger Instruction Manual

SDL200 • November 4, 2025 • Amazon

Comprehensive instruction manual for the Extech SDL200 Four-Channel Thermometer SD Logger, covering setup, operation, maintenance, and specifications.

Brand: Extech

Extech MG300-ETK Electrical Troubleshooting Kit User Manual

MG300-ETK • November 4, 2025 • Amazon

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 specifications.

Brand: Extech

Extech CB10 Circuit Breaker Finder and Receptacle Tester Instruction Manual

CB10 • October 29, 2025 • Amazon

Comprehensive instruction manual for the Extech CB10 AC Circuit Breaker Finder and Receptacle Tester, detailing setup, operation, maintenance, and specifications for locating circuit breakers and testing receptacles and GFCI circuits.

Brand: Extech

Extech SDL150 Dissolved Oxygen Meter SD Logger User Manual

SDL150 • October 27, 2025 • Amazon

Comprehensive user manual for the Extech SDL150 Dissolved Oxygen Meter SD Logger, covering setup, operation, maintenance, and specifications.

Brand: Extech

Extech 382100 1200A 3-Phase Power Analyzer/Datalogger User Manual

382100 • October 24, 2025 • Amazon

Comprehensive instructions for setting up, operating, and maintaining the Extech 382100 1200A 3-Phase Power Analyzer/Datalogger, including specifications and troubleshooting.

Brand: Extech

Extech LT10 Pocket Light Meter User Manual

LT10 • October 22, 2025 • Amazon

Instruction manual for the Extech LT10 Pocket Light Meter, covering setup, operation, maintenance, troubleshooting, and specifications.

Brand: Extech

Extech 412355A Current and Voltage Calibrator/Meter User Manual

412355A • October 22, 2025 • Amazon

Official user manual for the Extech 412355A Current and Voltage Calibrator/Meter, providing detailed instructions for setup, operation, maintenance, and specifications.

Brand: Extech

Extech ET60 Seven Range Voltage & Continuity Tester with NCV User Manual

ET60 • October 10, 2025 • Amazon

Instruction manual for the Extech ET60, a vibrating multifunction voltage and continuity tester with non-contact voltage detection, AC/DC voltage indication, and built-in flashlight.

Brand: Extech

Extech EX310 Mini Digital Multimeter with NCV Detector Instruction Manual

EX310 • October 6, 2025 • Amazon

Comprehensive instruction manual for the Extech EX310 Mini Digital Multimeter, covering setup, operation, maintenance, and specifications for safe and accurate electrical measurements.

Brand: Extech

Extech 445702 Relative Humidity/Temperature Indicator with Clock User Manual

445702 • October 4, 2025 • Amazon

Comprehensive instruction manual for the Extech 445702, detailing setup, operation, maintenance, and specifications for its humidity, temperature, and clock functions.

Brand: Extech

Extech EA30 Easy View Wide Range Light Meter User Manual

EA30 • October 2, 2025 • Amazon

Comprehensive instruction manual for the Extech EA30 Easy View Wide Range Light Meter, covering setup, operation, maintenance, and specifications.

Brand: Extech