The STU-500 is a real all-round talent: With its 512 pressure levels, paper-like surface texture, rapid real-time visualization and brilliant TFT-LCD display, the STU-500 provides a natural writing experience. With a VGA resolution of 640 x 480 pixels, it is large enough to display additional content such as transaction amounts and detailed text.


STU-500 features and benefits

  • 5.0″” monochrome, transreflective LCD display provides easy viewing even in bright lighting conditions
  • Screen resolution of 640 x 480 provides room for soft keys and can clearly display text
  • Serial data connectivity is available as an option
  • Wacom’s patented EMR technology provides a maintenance-free electronic pen
  • Hardened glass signing surface is extremely durable and highly resistant to scratches
  • Captures legally-binding electronic handwritten signatures
  • Data encryption is available as an option


The STU-500 LCD signature pad features a high-quality reflective display with a 640 x 480 resolution, providing sharp viewing of the smallest text and ample space for even the longest signatures. The large screen offers the flexibility to display images and text or to incorporate soft keys or menu buttons. Its reflective TFT technology means there is no need for backlighting, for a bright, high contrast viewing experience in business environments, and a longer lifetime. Thanks to these features, the STU-500 is the ideal signature pad for day-to-day use at public counters, allowing the reliable capture of millions of electronic signatures.


STU-500 Factsheet STU-500 Images

Technical specifications

General Specifications


Tablet & Pen


Dimensions (W x H x D) 160 x 182,5 x 24,6mm, 6.29 x 7,18 x 0.96inch
Color of front / back cover dark grey / dark grey
Weight 400g / 14,11oz
Power Supply 5V DC USB bus powered, RS-232C optional AC adapter kit for serial connection
Power Consumption 1.0W maximum
Communication / grapic card interface USB 1.1 (full speed), Serial RS-232C 115,2Kbps
Status LED Yes
Type TFT LCD Positive Reflective
Cover Plate Surface Tempered anti-glare etched glass with anti-reflective coating
Screen Diagonal 127mm / 5inch
Screen Size 102 x 76mm, 4.01 x 2.99inch
Resolution VGA, 640 x 480pixels
Aspect Ratio 4:3
Viewing Angles (H/V) 120° / 120°
Colour Depth B/W
Contrast Ratio -/-
Brightness -/-
Backlight / Lifetime -/-
Technology Electro-Magnetic-Resonance (EMR)
Active Area 102 x 76mm, 4.01 x 2.99inch
High Precsion Active Pen, Cordless and Battery Free Yes
Pen Pressure Levels 512 (non-interpolated)
Resolution 2.540 lpi (not interpolated)
Coordinate Accuracy ± 0.5mm / ± 0.02inch (center)
Reading Height 5 mm / 0.2 inch (center)
Report Rate 200pps / 800 4D coordinates
Pen Storange Integrated pen compartment with stand
Pen Tether Yes
Encryption System AES 128 bit encryption, Diffie-Hellman key exchange
Supported operating systems Windows® 8 / 7 / Vista / XP, Mac OS X 10.6.8 or later, Terminal server support
Software Compatible with signature / E-signing software and sign I pro PDF, C++, .Net and Java SDK/API available for developers
Operating Temperature +5°C to 35°C / 41°F to +95°F
Operating Humidity 20% to 80% RH (non-condensing)
Storage Temperature -10°C to +60°C / -14°F to 140°F
Storage Humidity 20% to 90% RH (non-condensing)
Mounting Options screw mounting holes
Warranty depending on region and channel of purchase