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 PH100 ExStik Waterproof pH Meters User Manual

December 11, 2025

EXTECH PH100 ExStik Waterproof pH Meters User Manual Additional User Manual Translations available at www.extech.com Introduction Thank you for selecting the Extech Model PH100 and/or the model PH110 (refillable) meter. This instrument is designed for high accuracy pH testing. This…

Brand: EXTECH

EXTECH 412355A Current Voltage Calibrator User Manual

December 10, 2025

EXTECH 412355A Current Voltage Calibrator Specifications Model: 412355A Functionality: Current/Voltage Calibrator Power Source: 9V battery or AC adapter Features: LCD, POWER button, UP/DOWN buttons, MODE button, UNIT button, MEM/ZERO button, Input/Output mini-connector, AC adaptor jack, Neck strap holders, Function switch…

Brand: EXTECH

EXTECH 445702 Hygro Thermometer Clock User Manual

August 4, 2025

EXTECH 445702 Hygro Thermometer Clock Specifications Display: Time (12/24 hour clock), Temperature (°C/°F), Relative Humidity (%) Power Supply: 1.5V AAA battery Low Battery Indication: Yes Product Usage Instructions Getting Started Open the battery compartment and remove the battery safety strip.…

Brand: EXTECH

EXTECH 461995 Laser Photo Tachometer Instruction Manual

July 26, 2025

EXTECH 461995 Laser Photo Tachometer Introduction Congratulations on your purchase of Extech's Laser Photo/Contact Tachometer, Model 461995. This Tachometer provides contact/non-contact RPM and Linear Surface Speed measurements. The laser pointer beam provides accurate long distance measurements for photo tachometer measurements.…

Brand: EXTECH

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 Type K temperature (using external probe). This device is shipped…

Brand: EXTECH

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

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 CO210 CO2 Monitor and Datalogger User Manual

User Manual • November 22, 2025

User manual for the Extech CO210 Carbon Dioxide Monitor and Datalogger, detailing its features, operation, setup, calibration, specifications, troubleshooting, and CO2 level guidelines.

Brand: Extech

Manuale d'Istruzioni Mini Termometro a Infrarossi Extech IR267 con Ingresso Tipo K e Puntatore Laser

manual • November 21, 2025

Guida completa per il Mini Termometro a Infrarossi Extech IR267. Include istruzioni operative, caratteristiche, specifiche tecniche, sicurezza e manutenzione per misurazioni precise di temperatura.

Brand: Extech

EXTECH 407760 Sound Level Meter USB Datalogger User Manual

manual • November 15, 2025

User manual for the EXTECH 407760 Sound Level Meter USB Datalogger. This document provides essential information on the device's introduction, operation, and battery replacement procedures.

Brand: EXTECH

Extech 45118 Mini Thermo-Anemometer User Manual

user manual • November 14, 2025

User manual for the Extech 45118 Mini Thermo-Anemometer, detailing operation, specifications, maintenance, and warranty information.

Brand: Extech

Extech VFL Series Process PID Controllers User Manual (96VFL, 48VFL)

User Manual • November 12, 2025

User manual for Extech VFL Series Process PID Controllers, models 96VFL and 48VFL. This guide covers installation, wiring, programming, operation, and specifications for precise process control applications.

Brand: Extech

Extech LT300 Light Meter User Manual

LT300 • December 1, 2025 • Amazon

Comprehensive user manual for the Extech LT300 Light Meter, covering setup, operation, maintenance, troubleshooting, and technical specifications.

Brand: Extech

EXTECH SDL600 Sound Meter SD Logger Instruction Manual

SDL600 • December 1, 2025 • Amazon

Comprehensive instruction manual for the EXTECH SDL600 Sound Meter SD Logger, covering setup, operation, maintenance, troubleshooting, and specifications for environmental sound level measurement.

Brand: EXTECH

Extech MS420 Digital 20MHz 2-Channel Oscilloscope User Manual

MS420 • November 9, 2025 • Amazon

Comprehensive user manual for the Extech MS420 Digital 20MHz 2-Channel Oscilloscope, covering setup, operation, features, specifications, and warranty information.

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