Hanvon E-Signature Efficient and Secure Solutions

ESP370U Electronic Signature Pad

ESP370U Electronic Signature Pad
3.7-inch Reflective LCD + Battery-Free Electromagnetic Pen

Integrates 3.7-inch reflective monochrome LCD with electromagnetic handwriting technology. Ultra-low power consumption, supports original handwriting signature capture and biometric extraction. Suitable for banking, postal, retail, securities, insurance, and communications counter scenarios.

✓ 3.7-inch reflective LCD, 240×120 resolution
✓ Ultra-low power, under 0.5W
✓ 512 pressure levels, true handwriting restoration
✓ AES256/RSA2048 encryption, secure data
ESP370U Electronic Signature Pad

Core Features

Ultra-low power design, ideal for power-sensitive counter scenarios

Signature Capture & Handwriting Restoration

Electromagnetic resonance technology captures every stroke precisely.

  • 2540 LPI resolution, ±0.5mm center accuracy
  • 512 pressure levels, captures stroke thickness and speed
  • Outputs x/y coordinates, pressure values, and time parameters

3.7-inch Reflective Display

Monochrome reflective LCD, sunlight readable, low power.

  • 3.7-inch FSTN reflective LCD, 240×120 resolution
  • Reflective display, no backlight needed, outdoor readable
  • Signature displayed synchronously on LCD

Ultra-Low Power Design

Power consumption under 0.5W, ideal for always-on operation.

  • USB BUS power (5V, 100mA)
  • Power consumption under 0.5W, energy efficient
  • Ideal for power-sensitive counter scenarios

System Integration & Development Support

Quickly embed into existing business systems, reducing integration cost.

  • Free SDK (lib.dll, OCX, WebSocket, etc.)
  • Supports C++, .NET, and Java developers
  • Compatible with Windows / Linux / Android

Data Security

Encrypted signature data transmission, meeting financial-grade security requirements.

  • Supports AES256 / RSA2048 encryption
  • Signature data can be synthesized into PDF/OFD documents
  • Meets data security standards for finance and government

Lightweight & Easy Deployment

Weighs only 157g, USB 2.0 plug-and-play.

  • Dimensions 154.5×120×9mm, slim and portable
  • Weight 157g, easy to deploy
  • Adapts to existing counter devices, fast deployment

Technical Specifications

Detailed parameters with business meaning for easy technical evaluation

Category Parameter Business Meaning
Display 3.7-inch FSTN reflective LCD, 240×120 Reflective monochrome, sunlight readable, low power
Touch Electromagnetic resonance, 2540 LPI, 512 pressure levels Original handwriting restoration, supports signature biometrics
Accuracy ±0.5mm (center), ±1mm (edge) Accurate signature positioning, reduces misoperation
Interface USB 2.0 Plug-and-play, adapts to existing counter devices
Encryption AES256 / RSA2048 Meets financial industry data security requirements
OS Windows / Linux / Android Adapts to multiple business systems
Power Under 0.5W, USB BUS power (5V, 100mA) Ultra-low power, energy efficient
Dimensions 154.5×120×9 mm Slim design, suitable for space-limited counters
Weight 157g Lightweight, easy to deploy
Writing Battery-free pen, sensor height 7mm, ±45° tilt Zero maintenance, natural writing
Development Free SDK, supports C++ / .NET / Java Quick embedding into third-party apps

Application Scenarios

Widely used in banking, postal, retail, securities, insurance, and communications counters

Bank Counter

Pain point: Paper forms, difficult archiving, slow retrieval.
Solution: ESP370U completes electronic document synthesis while the customer signs, reducing printing, scanning, and archiving steps.

Telecom Service Hall

Pain point: Cumbersome signing for activation, transfer, SIM replacement.
Solution: Electronic signatures embedded directly into business systems, improving counter efficiency.

Securities / Insurance

Pain point: Large volume of account opening agreements, insurance applications, risk confirmations.
Solution: Original handwriting retention, encrypted transmission, meeting compliance requirements.

Postal / Retail

Pain point: Delivery confirmation and membership registration rely on paper.
Solution: Electronic signature pad captures signatures quickly, data returned in real time.

Government Service Window

Pain point: Citizens repeatedly sign for social security, housing fund, etc.
Solution: ESP370U supports domestic OS, adapts to government counter signing.

Healthcare / Social Security

Pain point: Patient signatures and informed consent forms need long-term retention.
Solution: Electronic archiving of signatures for easy retrieval.

Frequently Asked Questions

What you may want to know about ESP370U

Does the signature have legal validity?▾

Yes. It supports original handwriting retention and can be synthesized into electronic documents. Combined with CA certification, it meets electronic signature laws.

Does the pen need charging?▾

No. ESP370U uses a battery-free, cordless electromagnetic pen. No battery, no charging, zero maintenance.

Is the screen readable in sunlight?▾

Yes. ESP370U uses an FSTN reflective LCD, no backlight needed, clearly visible in sunlight.

How low is the power consumption?▾

Power consumption is under 0.5W, USB BUS powered (5V, 100mA), ideal for always-on operation.

Is the SDK free?▾

Yes, it is provided free of charge. The SDK includes lib.dll, OCX, WebSocket, and other interfaces, supporting C++, .NET, and Java developers.

Ready to upgrade your counter signing experience?

Get the complete ESP370U datasheet, SDK documentation, or request a sample. Our team will provide professional support.