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Types of connection:

  • Optional: Virtual COM-Port (FTDI)
  • Optional: signotec USB-Ethernet Adaptor

Please Note: It is not possible to switch between the USB and FTDI operating modes.

Signature Pad | Sigma


Like the other signotec models, the signotec Sigma is made in Germany and was developed entirely in-house, combining decades of experience and competence.

At a height of only 1 cm, it guarantees the very best quality and functionality. It has a unique flat construction and the flat surface without edges between sensor and housing which enable a highly ergonomic signature.

The Sigma is extremely compact with an unsurpassed price-performance ratio of 160 x 120 x 10 mm, making it ideal for mobile use.  However, its flat and compact design also allows it to impress in stationary operation.

Its 4" (10.5 cm) sensor allows lively signatures to be captured without getting caught in the sensor's limitations. This is indispensable for a true-to-life and conclusive capture of the signature.  Extensive text information can be displayed as well.

The LCD screen is available with or without backlight. The signotec Sigma without backlight is the best choice when it is used in well-lit areas and the most cost-effective variant is required. Alternatively, the signotec Sigma with background lighting is an excellent choice for darker operating conditions.

Signotec Sigma Highlights

4" (10,5 cm) Display

1.024 Pressure Stages

RSA Encryption

Protective Case

signature pad sigma

USB Connection



Special foil surface for precise pen input

Batteryless pen with special spring-loaded refill

Capturing of 1,024 pressure stages

Very high sensor resolution of 5,080 LPI

Transmission rate of the 4D signature data at 500 Hz




4" (10,5 cm) large display with a resolution of 320 x 160 pixels



Only one USB cable required 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

Individual design options and OEM production (colors and logo printing)


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