About Windey-常州同惠电子股份有限公司

Stock code: 920509

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Impedance Analyzer

Auto Balance Technology＜15MHz Auto Balance Technology ≧15MHz

LCR Meter

Handheld LCR Basic <100kHz Universal 100kHz≦F＜1MHz High Freq ≥1MHz High Performance/Auto Balance Technology >=1MHz

Automatic transformer comprehensive test system

high-performance type Bridge function kit Cost-effective type

Inductance Meter

Inductance DC Bias Current Source

Capacitance Meter

Capacitor Leakage Current Tester High Speed Capacitor Tester Impact-resistant precision capacitance meter
精密源/测量单元

TH199X系列

Low-noise precision power supply

TH193X Series

High Resistance Meter/fA Meter/pA Meter

pA Meter fA Meter High Resistance Meter/Electrometer/fA Meter

Multi-channel temperature/data logger

Multi-channel temperature/data logger High-performance data acquisition/recorder

Microcurrent Testing System

Microcurrent Testing System

Benchtop Digital Multimeter

6 1/2 Digit Multimeter 5 1/2 Digit Multimeter 4 1/2 Digit Multimeter

DC Low Resistance Tester

Basic Model High Performance Type Universal Multi Channels

Insulation Resistance Meter

Analog Pointer Type Universal High Performance Type Dual Channel/High Power

Battery tester

Internal Resistance Tester Insulation Resistance Tester

high/low frequency voltage tester

Digital AC millivoltmeter High frequency millivoltmeter Digital AC millivoltmeter
Programmable DC power supply

linear switch Linear Output/Dual Range Linear Output/Multi Channel Linear Output/High Accuracy Linear Output/High Power Linear source-to-load integration Switch Type 360W/720W/1080W Switch Type 750W/1500W/3000W High power 3U high density 双向回馈式大功率

Programmable AC power supply

Programmable Linear

Programmable DC electronic loads

Feedback type high power Basic Model Modular High Performance Type

Digital Power Meter

Single Channel/Basic Type Single Channel/Universal Type Single Channel/Broadband Type Multi Channels/Broadband Type Multi Channels/Universal Type
Avalanche energy tester

Programmable inductive load box Avalanche energy tester

Power semiconductor device PIV test system

TH500 series

Semiconductor device CV characteristic testing

TH510 series

Semiconductor Parameter Analyzer

TH521 series
HighPerformance WithstandVoltage Insulation Tester

Multipurpose High Voltage Type High Power Type Parallel Multi-Channel Type

Cable/Harness Tester

TH8601 Series TH8602 Series TH8603 Series Chip Reading and Calibration Type TH8610 Series Th6xx Modular Series

Conventional Withstand Voltage Insulation Tester

Analog Type Basic Model Universal Type

Impulse Winding Tester

Scan Expandar Universal High Performance

High/Low Voltage Comprehensive Tester

IntegratedMagnetic Component Test/Aanalysis System

Other Electrical Safety Testers

Digital High Voltage Meter Leakage Current Tester Ground Resistance Tester
Integrated Circuit Teaching Experiment Platform

Integrated Circuit Teaching Experiment Platform
Component class automatic test system

Inductance Bias Feature Test System Winding Component Automatic Test System

Automatic test system for weak signals

Multi-channel capacitor leakage current automatic Multi-channel current test system

Semiconductor automatic test system

Optocoupler automatic test system Power device CV characteristic automatic system

Power class automatic test system

Switch Power Supply Automatic Test System
General Accessories

On-Shelf Components Handler to PLC Power Cable Cable Adapter

Hardware Optional Accessories

Other Test Instrument Options Automatic Test System Options Data Acquisition/Recorder Options Benchtop Digital Multimeter Options Power Electronic Test Instrument Options Mirco Singal Test Instrument Options Cable/Harness Test Equipment Options Electrical safety test equipment option Winding Component Test Instrument Options Component Parameter Tester Options

Software

Calibration Software Embedded Software PC Software

Other Accessories

Other Test Instrument Accessories

Automatic Test System Accessories

Automatic Test System Accessories

Data Acquisition/Recorder Accessories

Data Acquisition/ Recorder Accessories

Benchtop Digital Multimeter Accessories

Benchtop Digital Multimeters Accessories

Power Electronic Tester Accessories

Power Electronic Test Instrument Accessories

Mirco Singal Tester Accessories

Mirco Singal Test Instrument Accessories

Cable/Harness Tester Accessories

Cable/Harness Tester Accessories

Electrical Safety Instrument Accessories

Electrical Safety Test Instrument Accessories

Winding Component Tester Accessories

Winding Component Test Instrument Accessories

Component parameter test instrument accessories

Component parameter test instrument accessories
Application
Services and Downloads

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On October 15, 2025, at the Shenzhen Wanxin Exhibition 2025, Changzhou Tonghui Electronics Co., Ltd. officially established a strategic partnership with the National Third Generation Semiconductor Technology Innovation Center (Shenzhen) ..

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About Us

About Us

Changzhou Tonghui Electronics Co., Ltd. was founded in 1994. It is a national high-tech enterprise and a national specialized and innovative small giant enterprise that integrates research and development, manufacturing, and marketing.

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Instrument Accessories

致力于电子测量仪器的技术与产品研发，尤其在精密阻抗测量领域具有近三十余年的测试理论、测试技
术和实践经验的积累

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Product Center

Instrument Accessories

Hardware Optional Accessories

Hardware Optional Accessories

Component Parameter Tester Options

TH10101A TH10101A serial interface board

■ Old style, suitable for: all hosts
TH10001 TH10001GPIB interface board

■ Applicable to: all hosts, specific models such as TH10002, TH10003, TH17B01, etc.
TH10201 TH2817A interface board

■ Applicable to: hosts other than TH2818 /TH2819 /TH2828 series
TH10301 TH2828 40DC/20AC signal enhancement board

■ Programmable
■ Voltage: 0-20VAC; 0-40VDC
■ Current: 0-100mA
■ Applicable to: TH2828 series

Winding Component Test Instrument Options

TH1802A TH2818 bias board (accessory)

■ Programmable
■ Voltage: 0-10V
■ Current: 0-100mA
■ Applicable to: TH2818/XA/XB

Electrical safety test equipment option

Cable/Harness Test Equipment Options

TH26070 TH8601 series GPIB interface

■ Applicable to: TH8601/A
TH615-01
TH615-01-2W

Mirco Singal Test Instrument Options

TH2518-01 TH2518 Handler interface adapter board

■ Applicable to: TH2518

Power Electronic Test Instrument Options

Benchtop Digital Multimeter Options

TH10004 GPIB interface board (TH1953/1963)

■ Suitable for TH1953/63 series

Data Acquisition/Recorder Options

TH25521 Eight-way data sampling module

■ Fully isolated universal input, multiple signal acquisition
Thermocouple K, E, R, B, N, T, E, J, S
WRE5-26, WRE3-25 Thermal resistance Pt100, Cu50
Current 4-20mA, 0-10mA, 0-20mA
Voltage 0-5V, 0-10V, 1-5V
■ 8CH
■ Pluggable design
■ Suitable for TH2552/TH2553 multi-channel data/temperature recorder

Automatic Test System Options

TH300-8 8-channel control unit

Other Test Instrument Options

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