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Precision Test & Measurement Instruments

High-accuracy Dry Block Calibrators, Process Calibrators, Blackbody Furnaces, and advanced electronic test equipment for industrial, laboratory, and engineering applications.

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About EastTester

Hangzhou Zhongchuang Electron Co., Ltd. is a professional manufacturer integrating R&D, production, and sales of high-precision thermal inspection and electronic test instruments under the "Zhongchuang" and "EastTester" brands.

With over 120 employees, including 23 high-tech professionals holding senior titles or master’s degrees and above, we are committed to innovation, quality, and customer satisfaction. Our factory spans 7,300 square meters in the Kangqiao Industrial Park, North Hangzhou Software Park.

  • ISO-Certified Manufacturing
  • Global Distribution Network
  • 24-Hour Customer Support
  • R&D-Driven Product Development
Factory and Team

Our Product Range

Explore our comprehensive lineup of precision calibration and test instruments designed for reliability, accuracy, and ease of use across industries.

ET2520 Dry Block Calibrator

ET2520 Series Dry Block Calibrator

High-precision temperature calibration with touch screen interface and rapid heating/cooling.

  • Range: -95°C to 660°C
  • Touch Screen Interface
  • Fast Thermal Response
ET3871 Thermostatic Bath

ET3871 Standard Thermostatic Bath

Laboratory-grade temperature stability for high-accuracy sensor calibration.

  • Stability: ±0.01°C
  • Large Working Volume
  • PID Control System
WMX100A Handheld Calibrator

WMX100A Handheld Process Calibrator

Portable multifunction calibrator for field use in industrial environments.

  • mA, V, RTD, TC, Hz
  • 20+ Hour Battery Life
  • HART Communication Support
ETP6X DC Power Supply

ETP6X Series DC Power Supply

Programmable single-channel power supply with high stability and precision.

  • 0-32V / 0-5A Output
  • Remote Control Interface
  • OVP, OCP, OTP Protection
ET5406A+ Electronic Load

ET5406A+ Programmable Electronic Load

High-performance DC load for testing power supplies and batteries.

  • 0-120V / 0-60A
  • Constant Current, Voltage, Resistance
  • Dynamic Loading Mode
HART475 Communicator

HART475 Communicator

Handheld communicator for configuring and troubleshooting HART-enabled devices.

  • Full HART Protocol Support
  • Device Configuration & Diagnostics
  • Data Logging Capability
ET1625 Multifunction Calibrator

ET1625 High-Precision Process Calibrator

Benchtop multifunction calibrator with ultra-high accuracy for lab use.

  • 0.02% Basic Accuracy
  • 6.5 Digit Resolution
  • Built-in Calibration Report Generator
ET3875 Portable Oil Tank

ET3875-300 Portable Thermostatic Oil Tank

Compact, portable oil bath for on-site temperature calibration tasks.

  • Max Temp: 300°C
  • Lightweight & Portable
  • Stirring System for Uniform Temp

Why Choose EastTester?

Trusted by laboratories, energy stations, and engineering firms worldwide for reliability, precision, and innovation.

Laboratory-Grade Accuracy

Our instruments are engineered to meet or exceed international calibration standards, ensuring traceable and repeatable results in critical environments.

Industrial Durability

Designed for harsh field conditions with rugged enclosures, wide operating temperature ranges, and long-term reliability.

Global Support

24-hour response time, multilingual support, and comprehensive documentation ensure seamless integration and operation.

120+
Employees
23
Senior Engineers
7,300m²
Factory Area
50+
Countries Served

Frequently Asked Questions

Find answers to common inquiries about our products and services.

What is the lead time for product delivery?

Standard products are typically shipped within 5-7 business days. Custom or large-volume orders may require additional time, which will be confirmed during order processing.

Do you offer calibration certificates?

Yes, we provide factory calibration certificates with all instruments. Accredited third-party certificates (e.g., ISO/IEC 17025) are available upon request.

Can your calibrators work with HART devices?

Yes, models like the WMX100A and HART475 are specifically designed for HART communication, allowing configuration, calibration, and diagnostics of smart instruments.

What is the warranty period?

All EastTester instruments come with a standard 2-year warranty covering parts and labor. Extended warranty options are available.

Get in Touch

For inquiries about our products, pricing, or technical support, please reach out through our official website.

Contact Information

  • No.3, Kangle Road, Gongshu District, Hangzhou, Zhejiang, China
  • +86-13396517215
  • +86-571-56770221
  • sales1@east-tester.com

Hours: Monday–Friday: 9 AM – 6 PM

Saturday–Sunday: Closed

Send a Message

Visit our official website to submit an inquiry. Our team responds within 24 business hours.

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