signotec Sigma LCD Signature Pad

The signotec Sigma is the smallest signature pad with an approx. 4″ (10.4 cm) monochrome display (LCD), which is optionally available with or without backlight. The RTP sensor with a special foil surface captures the handwritten signature with a sampling rate of up to 500 Hz and 1,024 pressure levels. In addition, simple graphics and text information can also be shown on the display of the signotec Sigma.

The signotec Sigma without backlight is the best choice for well illuminated areas. The signotec Sigma with backlight, on the other hand, is also excellent for use in changing light conditions. The compact design makes the signotec Sigma ideal for both stationary and mobile use. The included protective pouch is particularly useful during transport.


  • 4″ (10,5 cm) large display with a resolution of 320 x 160 pixels
  • Special foil surface for precise pen input
  • Batteryless pen with special spring-loaded refill
  • Acquisition of 1,024 pressure stages
  • Very high sensor resolution of 5,080 LPI
  • Transmission rate of the 4D signature data at 500 Hz
  • Only one USB cable for connection
  • Patented security for the conclusive signature of PDF documents
  • RSA encryption of the font characteristics in the pad
  • Supplied with protective bag for safe transport


Type10,5 cm (4″) Mono-LCD, optional with LED backlight
Resolution320 x 160 pixels
TypeRTP (Resistive-Touch-Panel)
PenPen with special, resilient pen tip (changeable)
SurfaceSpecial foil surface for RTP sensors
Life expectancyapprox. 1 Million Signatures
Pressure Stages1.024
Sample Rate500 Hz, 4D Samples (x, y, z, t)
Active Signing Area92 x 45 mm
Resolution4.096 x 4.096 Pixel absolute ≙ 2.214 x 1.130 ppi
Dimensions (W x D x H)160 x 120 x 10 mm
Weightapprox. 180g
Status LED2-colour status LED
SlideshowYes, you can configure one standby image inside the pad.
Warranty2 years