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Mastfuyi Manuals & User Guides

Mastfuyi manufactures precision electronic measuring instruments, including digital multimeters, clamp meters, thermal imagers, and environmental testers for professional and home use.

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

About Mastfuyi manuals on Manuals.plus

Mastfuyi is a leading manufacturer of electronic test and measurement instruments, dedicated to providing precision tools for professionals and hobbyists alike. Operated by Huizhou City Fu Yi Electronic Technology Co., Ltd., the brand offers a diverse portfolio of diagnostic equipment designed for accuracy and safety.

The Mastfuyi product range includes advanced oni multimeters, clamp mita, ati thermal imaging cameras, as well as specialized environmental testers such as sound level meters and coating thickness gauges. Engineered with user convenience in mind, their devices often feature intelligent auto-ranging, large backlit displays, and rugged protective casings.

Whether for residential electrical work, automotive diagnostics, or industrial maintenance, Mastfuyi instruments are built to deliver reliable performance and comply with rigorous global safety standards.

Mastfuyi manuals

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MASTFUYI FY12 Infrared Thermal Imagers User Manual

Oṣu kejila ọjọ 4, ọdun 2025
MASTFUYI FY12 Infrared Thermal Imagers Specifications Sensor Type: Vanadium oxide (VOx) micro calorimeter Response Band: 8~14μm Thermal Image Resolution: 240x240 Pixels Noise Equivalent Temperature Difference (NETD): 8.89 mK Field of…

Mastfuyi FY381 Digital Clamp Afowoyi olumulo Mita

Oṣu kọkanla ọjọ 28, ọdun 2025
Mastfuyi FY381 Digital Clamp Meter Product Information Warning Pay attention when using this meter; improper use may cause electric shock or damage the meter. In use, you should follow the…

Mastfuyi FY8825 Nuclear Radiation Detector User Manual

Itọsọna olumulo
User manual for the Mastfuyi FY8825 Nuclear Radiation Detector, a Geiger-Miller counter designed to measure ionizing radiation (X-rays, Gamma, Beta). Includes features, operation, safety, and radiation knowledge.

MASTFUYI FY211D Digital Clamp Ilana Itọsọna Mita

Ilana itọnisọna
Instruction manual for the MASTFUYI FY211D Digital Clamp Meter, detailing its features, technical specifications, safety precautions, measurement guides, and maintenance procedures. This multimeter offers True RMS AC/DC current and voltage…

Mastfuyi FY382 Digital Clamp Afowoyi olumulo Mita

olumulo Afowoyi
User manual for the Mastfuyi FY382 digital clamp meter, providing detailed instructions for operation, safety, and specifications. Covers features like AC/DC current measurement, NCV, and capacitance.

Mastfuyi manuals from online retailers

Mastfuyi FY77 Digital Multimeter User Manual

FY77 • Oṣù Kínní 26, 2026
Comprehensive user manual for the Mastfuyi FY77 Digital Multimeter, covering setup, operation, maintenance, troubleshooting, and specifications for accurate electrical measurements.

Mastfuyi MK06 Digital Clamp Afowoyi olumulo Mita

MK06 • Oṣù Kínní 19, 2026
Comprehensive user manual for the Mastfuyi MK06 Digital Clamp Meter, providing instructions for AC/DC current, voltage, resistance, capacitance, continuity, frequency, and diode measurements, along with safety guidelines and…

Mastfuyi FY10 Thermal Imager User Manual

FY10 • Oṣù Kínní 19, 2026
Comprehensive user manual for the Mastfuyi FY10 Thermal Imager, covering setup, operation, maintenance, troubleshooting, and specifications for industrial, electrical, and fire rescue applications.

Mastfuyi FY12DMM Thermal Imager Multimeter User Manual

FY12DMM • January 6, 2026
This comprehensive user manual provides detailed instructions for the Mastfuyi FY12DMM Thermal Imager Multimeter, covering device overview, setup, operation of thermal imaging and multimeter functions, data management, maintenance,…

Mastfuyi FY8825 Nuclear Radiation Detector User Manual

FY8825 • December 25, 2025
Comprehensive user manual for the Mastfuyi FY8825 Nuclear Radiation Detector. Learn about setup, operation, maintenance, and specifications for detecting X-ray, Gamma, and Beta radiation with real-time alarms.

Mastfuyi FY8830 Gas Leak Detector User Manual

FY8830 • December 20, 2025
Comprehensive instruction manual for the Mastfuyi FY8830 Portable Natural Gas Detector, including setup, operation, maintenance, and specifications for detecting combustible gases like methane, propane, LNG, and LPG.

Mastfuyi FY02A Digital Multimeter User Manual

FY02A • December 3, 2025
Comprehensive user manual for the Mastfuyi FY02A Digital Multimeter, covering setup, operation, maintenance, and specifications for measuring voltage, current, resistance, continuity, diode, and frequency, with NCV and auto-ranging…

Mastfuyi FY382C Digital Clamp Afowoyi olumulo Mita

FY382C • February 7, 2026
Comprehensive user manual for the Mastfuyi FY382C Digital Clamp Meter, covering setup, operation, maintenance, specifications, and troubleshooting for AC/DC voltage, lọwọlọwọ, resistance, capacitance, igbohunsafẹfẹ, ati awọn iwọn otutu.

MASTFUYI FY18S AC Voltage Electric Pen User Manual

FY18S • 1 PDF • February 6, 2026
Comprehensive user manual for the MASTFUYI FY18S AC Voltage Electric Pen, covering safety, setup, operation, features like NCV, live wire check, breakpoint detection, sensitivity adjustment, and specifications.

MASTFUYI Digital Clamp Meter FY375 User Manual

FY375 • 1 PDF • February 4, 2026
Itọsọna olumulo fun Mastfuyi FY375 Digital Clamp Meter, covering safety, setup, operating instructions for AC/DC current, voltage, resistance, capacitance, temperature, NCV, and maintenance.

MASTFUYI Digital Multimeter User Manual

FY129C Series • 1 PDF • February 4, 2026
A comprehensive instruction manual for the Mastfuyi FY129C series digital multimeters, covering setup, operation, specifications, and maintenance for accurate electrical measurements.

Mastfuyi FY8912B Battery Tester User Manual

FY8912B • February 3, 2026
Comprehensive instruction manual for the Mastfuyi FY8912B Battery Tester, covering setup, operation, maintenance, and specifications for 12V/24V automotive lead-acid batteries. Learn how to test battery voltage, SOC, CCA,…

Mastfuyi FY8912B 12V/24V Car Battery Tester User Manual

FY8912B • 1 PDF • February 3, 2026
Comprehensive user manual for the Mastfuyi FY8912B automotive battery tester. Learn how to set up, operate, and maintain your diagnostic tool for 12V/24V lead-acid batteries, including quick and…

MASTFUYI FY8176 Network Cable Tester User Manual

FY8176 • February 2, 2026
Comprehensive user manual for the MASTFUYI FY8176 Network Cable Tester, including setup, operating instructions for wire tracing, length test, wiremap test, POE test, port flash, NCV, flashlight, maintenance,…

MASTFUYI FY18GF Automotive Electrical Pen Tester User Manual

FY18GF • 1 PDF • January 27, 2026
This manual provides detailed instructions for the MASTFUYI FY18GF DC Voltage Electrical Pen, a 6-in-1 automotive diagnostic tool. Learn about its features, setup, operation, specifications, and maintenance for…

Mastfuyi video guides

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Mastfuyi support FAQ

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  • How do I replace the battery in my Mastfuyi multimeter?

    Most Mastfuyi meters use AAA or 9V batteries. To replace them, ensure the device is turned off and test leads are removed. Unscrew the battery cover on the back, replace the old batteries observing the correct polarity, and secure the cover back in place.

  • What is the warranty period for Mastfuyi products?

    Mastfuyi typically offers a one-year limited warranty from the date of purchase, covering defects in material and workmanship under normal use conditions.

  • How does the NCV function work?

    Awọn Non-olubasọrọ Voltage (NCV) function allows you to detect the presence of AC voltage without touching the wire. Simply switch the meter to NCV mode and bring the sensor tip near the conductor; the meter will beep or flash if voltage ti ri.

  • Can I use my Mastfuyi thermal imager to detect water leaks?

    Yes, Mastfuyi thermal imagers can detect temperature differences caused by moisture evaporation or hot water pipes behind walls, making them effective for identifying potential leaks and plumbing issues.

  • How do I calibrate my Mastfuyi sound level meter?

    Standard consumer models are factory calibrated. Over long periods of use, if accuracy drifts, professional calibration using a standard sound source is recommended. For general use, ensure the microphone is clean and the wind-resistant ball is used outdoors.