Key facts
- Manuals
- 593
- Models
- 110
- Languages
- EN · ZH
- Last added
- 2026-10-03
EXTECH models by category
Featured EXTECH manuals
Extech HD400 and HD450 Heavy Duty Light Meters Product Leaflet
The Extech HD400 and HD450 are heavy‑duty light meters calibrated to NIST standards. The HD400 is a standard meter, while the HD450 adds datalogging capability and a larger backlit LCD display. Both models feature a rugged double‑molded housing and a built‑in USB port for PC connectivity.
Key features include a wide measurement range (up to 40,000 Fc or 400,000 Lux), cosine and color‑corrected measurements, peak and relative modes, and min/max data hold. The HD450 can automatically store up to 16,000 readings and manually recall up to 99 readings. Accessories include a light sensor with a 3 ft cable, protective cover, Windows‑compatible software, a hard carrying case, and a 9 V battery.
Covers: Ordering Information · Features · Specifications · Dimensions · Model Options
Extech 475055 Digital Force Gauge User Manual
The Extech 475055 digital force gauge measures up to 220 lb (100 kg, 980 N) of tension or compression with selectable units (kg, lb, N). It features peak‑hold, fast/slow refresh rates, reversible LCD display and an RS‑232 PC interface for data logging.
The guide covers setup, measurement procedures, peak‑load mode, backlight activation, PC connection, battery replacement, and provides full technical specifications such as accuracy, resolution, overload capacity, and dimensions. This manual is written in Chinese.
Covers: Introduction · Operation · Peak Load Measurement · Fast/Slow Selection · Backlight Display · PC Interface
Extech 45170 4-in-1 Humidity, Temperature, Airflow and Lux Meter User Guide
This guide introduces the Extech 45170 4‑in‑1 instrument, which combines humidity, temperature, airflow and lux measurement in a single handheld device. It describes the instrument layout, power operation, and safety considerations for reliable use.
The manual covers each measurement mode—wind speed, relative humidity, temperature (thermocouple or RTD), and illumination—detailing how to select units, record values, use the MIN/MAX and HOLD functions, and understand the auto‑power‑off feature. Technical specifications such as range, resolution, accuracy, and physical dimensions are provided for reference. This manual is written in Chinese.
Covers: Introduction · Operation · Data Hold · Specifications
Extech DCP36 DC Switching Power Supply User Manual
The DCP36 is an 80 W laboratory‑grade DC switching power supply offering adjustable output from 0.5 V to 36 V and up to 5 A. This manual explains how to install, configure, and safely operate the unit, including master/slave networking and remote‑sense capabilities.
Key sections cover safety warnings, front‑panel functions, programming menus for voltage/current limits, master‑slave address setup, remote‑sense wiring, specifications, and a troubleshooting guide for common errors such as UVL/UCL and over‑current protection. This manual is written in Chinese.
Covers: Introduction · Safety Information · Power Supply Description · Front and Back Panel Overview · Programming Menu · Single‑Unit Operation
Latest EXTECH manuals
Extech HD400 and HD450 Heavy Duty Light Meters Product Leaflet
Product Leaflet 1 pages · 222 KB · ENOrdering information, specifications, and features for the Extech HD400 and HD450 heavy‑duty light meters.
Extech 475055 Digital Force Gauge User Manual
User Manual 5 pages · 601 KB · ZHThe manual explains operation, peak‑load measurement, backlight, PC interface, battery replacement and specifications for the Extech 475055 digital force gauge.
Extech 45170 4-in-1 Humidity, Temperature, Airflow and Lux Meter User Guide
User Manual 5 pages · 223 KB · ZHThe Extech 45170 user guide explains how to operate the 4‑in‑1 humidity, temperature, airflow and lux meter, including setup, measurement modes, and…
Extech DCP36 DC Switching Power Supply User Manual
User Manual 10 pages · 1 MB · ZHThe Extech DCP36 user manual provides setup, operation, safety, programming, and troubleshooting instructions for the 80 W DC switching power supply.
Extech HD300 CFM/CMM Thermal Anemometer User Guide
User Manual 12 pages · 437 KB · ZHThe Extech HD300 handheld CFM/CMM thermal anemometer measures air velocity, flow, temperature and surface temperature with an infrared sensor and laser pointer.
Extech SD700 Pressure/Humidity/Temperature Data Logger User Manual
User Manual 7 pages · 679 KB · ZHUser manual for the Extech SD700 data logger that records pressure, humidity and temperature, with operation, settings and specifications.
Extech 7100 Series HIPOT/Insulation Testers Product Data Sheet
Product Leaflet 2 pages · 401 KB · ENThe Extech 7100 Series HIPOT/Insulation Testers data sheet provides specifications, safety features, and ordering information for models 7130, 7132, 7140…
Extech 6900 Series AC Power Supply Operation Manual
User Manual 27 pages · 627 KB · ZHThis manual provides safety rules, installation steps, specifications, operation, calibration and maintenance for the Extech 6900 Series AC power supply.
Extech EX360 Series True RMS Digital Multimeter User Manual
User Manual 25 pages · 2.9 MB · ZHUser manual for the Extech EX360 series true‑RMS digital multimeter with safety, operation, and specifications.
Extech SDL730 Heavy Duty Differential Pressure Gauge User Manual
User Manual 12 pages · 627 KB · ZHThe Extech SDL730 user manual provides setup, operation, data logging, and maintenance instructions for the heavy‑duty differential pressure gauge.
Extech 401025 Digital Lux Meter User Manual
User Manual 7 pages · 655 KB · ZHThe Extech 401025 digital lux meter user manual provides setup, operation, range selection, zeroing, battery replacement, specifications, and calibration…
Extech MO55W Wireless Data Logging Dual-Probe Moisture Meter User Guide
User Manual 8 pages · 407 KB · ZHThe Extech MO55W user guide explains how to measure moisture in wood and building materials using probe and non‑probe modes, with Bluetooth data logging.
Extech EGB-300 Grounding Impedance Tester Datasheet
Datasheet 4 pages · 1.1 MB · ZHThe Extech EGB-300 datasheet provides specifications and features of a compact 40 A grounding impedance tester.
EXTECH MODEL 401014 Big Digit Indoor/Outdoor Thermometer Termómetro de Grandes Dígitos para Interiores Exteriores Thermomètre Intérieur/Extérieur à Gros Ch
This is a manual for Steadicam Merlin, which introduces how to use Steadicam Merlin for shooting
EXTECH Waterproof Thermometer Model 39240 Manual
This document introduces the sealed sub-miniature pushbutton switches 800A series from e-switch. The product features a single pole single throw (SPST) configuration and an epoxy seal base. The switch has a compact size and high reliability, making it suitable for various applications.
Which document do I need?
User Manual
Day-to-day operation, settings and troubleshooting. Start here if the product is already set up.
Datasheet
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in EXTECH manuals
How many readings can the HD450 store?
The HD450 can automatically store up to 16,000 continuous readings and manually store or recall up to 99 selected readings.
From: Extech HD400 and HD450 Heavy Duty Light Meters Product Leaflet
What is the measurement accuracy of the HD400 and HD450 meters?
Both meters provide an accuracy of ±5% of the reading.
From: Extech HD400 and HD450 Heavy Duty Light Meters Product Leaflet
How do I change the measurement unit on the 475055?
Press the unit‑selection button to toggle between kilograms, pounds, or newtons.
How is the backlight activated?
Briefly press the backlight button; the LCD lights for about 15 seconds before turning off automatically.
How do I turn the meter on?
Press the POWER button; the instrument powers up and performs a brief self‑test.
From: Extech 45170 4-in-1 Humidity, Temperature, Airflow and Lux Meter User Guide
How can I record minimum and maximum values?
Press the MAX/MIN button once to start recording; press it again to view the maximum, and a third press to view the minimum.
From: Extech 45170 4-in-1 Humidity, Temperature, Airflow and Lux Meter User Guide