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 RH200W Wireless Hygro-Thermometer User Manual

September 6, 2023

EXTECH RH200W Wireless Hygro-Thermometer User Manual Thank you for selecting the Extech RH200W Wireless Hygro-Thermometer with User-Calibration & Auto Night Light. This device is shipped fully tested and calibrated and, with proper use, will provide years of reliable service. Please…

Brand: EXTECH

EXTECH SDL300 Thermo Anemometer Datalogger User Manual

September 6, 2023

EXTECH SDL300 Thermo Anemometer Datalogger User Manual Introduction Congratulations on your purchase of the Extech SDL300 Thermo-Anemometer Datalogger. This meter displays and stores air velocity and temperature readings. Temperature readings from the thermometer built into the vane probe or from…

Brand: EXTECH

EXTECH EN510 Environmental Meter User Manual

September 6, 2023

EXTECH EN510 Environmental Meter User Manual Introduction Thank you for selecting the Extech EN510 Environmental Meter. This instrument measures Air Velocity with Air temperature, Air Flow (volume), Light, Relative Humidity % with Air temperature, Dew Point temperature, Web bulb temperature,…

Brand: EXTECH

EXTECH 407123 Hot Wire Thermo Anemometer User Manual

September 6, 2023

EXTECH 407123 Hot Wire Thermo Anemometer Product Information The Hot Wire Thermo-Anemometer Model 407123 is a device used to measure air velocity and temperature. It features a sensor tip with an air velocity sensor, air direction indentation, and a temperature…

Brand: EXTECH

EXTECH EA15 Thermocouple Datalogging Thermometer User Manual

September 6, 2023

User Manual Thermocouple Datalogging Thermometer Seven (7) Thermocouple input types K, J, T, E, R, S, N Dual thermocouple Input with PC Interface Model EA15 Additional User Manual Translations available at www.extech.com Introduction Congratulations on your purchase of the Extech…

Brand: EXTECH

EXTECH VB300 3 Axis G Force Datalogger User Manual

September 5, 2023

User Manual 3-Axis G-Force Datalogger Model VB300 Introduction Congratulations on your purchase of the VB300 G-Force Datalogger. The Model VB300 can measure and record shock and vibration (acceleration) readings over its ± 18g measurement range. This device will record 3-axis…

Brand: EXTECH

Extech RPM33 Laser Photo Contact Tachometer User Manual

September 5, 2023

USER MANUAL Model RPM33 Laser Photo / Contact Tachometer Additional User Manual translations available at www.extech.com Introduction Congratulations on your purchase of the Extech Laser Photo / Contact Tachometer, Model RPM33. The RPM33 digital tachometer offers fast and accurate measurements…

Brand: EXTECH

EXTECH Edger Video Borescope Wireless Inspection Camera User Manual

September 5, 2023

EXTECH Edger Video Borescope Wireless Inspection Camera Product Information The Video Borescope Wireless Inspection Camera is available in three models: BR200, BR250, and KITS. It features a waterproof camera head with a flexible cable, LED lamps with dimmer for illumination,…

Brand: EXTECH

Extech BR90 Compact Borescope User Manual

September 5, 2023

Extech BR90 Compact Borescope Product Information The Extech BR90 Compact Borescope is a portable device that provides real-time video monitoring. It is designed for inspecting the interior of pipelines, conduits, and other narrow spaces. The BR90 is useful for various…

Brand: EXTECH

EXTECH RH520A Temperature Humidity Chart Recorder User Manual

September 5, 2023

EXTECH RH520A Temperature Humidity Chart Recorder Product Information Model RH520A Description Paperless Humidity/Temperature Chart Recorder Features The RH520A measures and displays Temperature, Humidity, and Dew Point. The remote (detachable) probe senses the ambient conditions while the LCD display graphs and…

Brand: EXTECH

Extech 407730 Digital Sound Level Meter User Manual

User Manual • January 14, 2026

User manual for the Extech 407730 Digital Sound Level Meter, detailing its features, operation, specifications, calibration, and warranty information.

Brand: EXTECH

Extech HD350 Heavy Duty Pitot Tube Anemometer and Differential Pressure Manometer User Manual

User Manual • January 12, 2026

User manual for the Extech HD350, a heavy-duty pitot tube anemometer and differential pressure manometer. Learn about its features, operation, specifications, and troubleshooting.

Brand: Extech

Extech 407732 Digital Sound Level Meter User Manual

User Manual • January 11, 2026

User manual for the Extech Model 407732 Digital Sound Level Meter, covering operation, specifications, safety, calibration, and warranty information.

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 VB300 Vibration Data Logger User Manual

VB300 • August 28, 2025 • Amazon

The Extech VB300 is a 3-axis G-Force datalogger designed to record and time shock and vibration (acceleration) readings within a ±18g measurement range. This device captures 3-axis g-force and related peaks, providing a comprehensive history of shock and vibration conditions. It includes…

Brand: Extech

Extech MF100 AC/DC Magnetic Field Meter User Manual

MF100 • August 27, 2025 • Amazon

The MF100 is an AC/DC Magnetic Field Meter. This magnetic field meter features automatic temperature compensation with its Hall effect sensor. Complete with uniaxial magnetic probe sensor and protective cover, 9V battery and hard carrying case.

Brand: Extech

EXTECH MO257 Pinless Moisture Meter User Manual

MO257 • August 21, 2025 • Amazon

Official user manual for the Extech MO257 Pinless Moisture Meter, providing instructions for setup, operation, maintenance, and troubleshooting.

Brand: Extech

Extech HT30 Heat Stress WBGT Meter Humidity and Heat Stress WBGT Meter

HT30 • August 21, 2025 • Amazon

The HT30 Wet Bulb Globe Temperature (WBGT) measurement considers the effects of temperature, humidity and direct or radiant sunlight. It can also determine Heat Stress Index which measures how hot it feels when humidity is combined with temperature, air movement, and radiant…

Brand: Extech

$Extech RF20 Automatic Temperature Compensation Salinity Refractometer User Manual$

Extech RF20 Automatic Temperature Compensation Salinity Refractometer User Manual

RF20 • August 19, 2025 • Amazon

Comprehensive user manual for the Extech RF20 Salinity Refractometer, covering setup, operation, maintenance, troubleshooting, and specifications.

Brand: Extech

Extech MD10 Non-Contact Magnet Detector User Manual

MD10 • August 18, 2025 • Amazon

Comprehensive user manual for the Extech MD10 Non-Contact Magnet Detector with Built-in Flashlight, covering setup, operation, maintenance, troubleshooting, and specifications.

Brand: Extech

Extech DL150 True RMS AC Voltage/Current Datalogger User Manual

DL150 • August 14, 2025 • Amazon

Comprehensive user manual for the Extech DL150 True RMS AC Voltage/Current Datalogger, covering setup, operation, maintenance, and specifications.

Brand: Extech

Extech MS6100 2-Channel Digital Oscilloscopes, 100 mHz User Manual

MS6100 • August 14, 2025 • Amazon

2 Channel 100MHz Digital Scope features: a 5.6" (142mm) color LCD display that makes viewing multiple waveforms easy, 500MS/s sampling rate per channel, 1M point record length per channel, and one-touch automatic setup that optimizes the position, range, timebase, and triggering to…

Brand: Extech

Extech 144220 AC Adaptor User Manual

144220 • August 14, 2025 • Amazon

220V AC Adaptor for Models 407764, 407780, 407790

Brand: Extech

Extech MG320 Insulation Tester User Manual

MG320 • August 4, 2025 • Amazon

Comprehensive user manual for the Extech MG320 Insulation Tester, covering setup, operation, maintenance, troubleshooting, and detailed specifications for this True RMS multimeter and insulation tester.

Brand: Extech

Extech BR250 Video Borescope/Wireless Inspection Camera User Manual

BR250 • July 30, 2025 • Amazon

Comprehensive user manual for the Extech BR250 Video Borescope/Wireless Inspection Camera, covering setup, operation, maintenance, troubleshooting, specifications, warranty, and support for home, automotive, HVAC, and industrial inspection applications.

Brand: Extech

Extech RH101 Combination Humidity Meter and Infrared Thermometer User Manual

RH101 • July 28, 2025 • Amazon

Includes: (1) Built-in stand; (1) Protective holster; (1) Humidity/Temperature probe; (1) 9V battery; (1) Carrying case.

Brand: Extech