iMD GF421DR
iMD GF421DR (INDICUS series) is a compact single-finger fingerprint reader built around the proprietary MatriXcan sensor. It is FBI PIV (FAP20) certified, ensuring compliance for civil identification applications. The device is also MOSIP-compliant.
The MatriXcan sensor delivers clear fingerprint images on dry, worn, or wet fingers for reliable identification. The reader features an LED status indicator, liveness detection (LFD), on-device encryption, and resistance to latent prints, ultraviolet and strong light for secure and accurate operation.
The manufacturer specifies that the device's IP54-rated housing ensures resistance to dust and moisture, while a hardened scratch-resistant surface and excellent ESD performance (IEC 61000-4-2 Level 4) add to its durability.
Support modules for this device are included in MegaMatcher 2025.2 SDK, MegaMatcher On Card 2025.2 SDK and VeriFinger 2025.2 SDK.
Specifications
| Scanner Name | INDICUS GF421DR |
| Manufacturer | Image Match Design Inc. |
| Connection | USB 2.0 type-C |
| Supported OS (*) | Microsoft Windows |
| Resolution | 500 ppi |
| Platen size | 16 x 36 mm (0.6" x 1.4") |
| Image capture area | 15 x 20 mm (0.6" x 0.8") |
| Fingerprint image size | 300 x 400 pixels |
| Sensor type | MatriXcan (proprietary sub-dermal imaging technology) |
| Device size | 73 x 51 x 24 mm (2.9" x 2.0" x 0.9") |
| Device weight | 53 g (1.9 oz) |
| Operating temperature | -20°C ~ +70°C (-4°F ~ 158°F) |
* These operating systems are supported by Neurotechnology SDKs. Device manufacturers may have different lists of supported operating systems.
Other iMD scanners
Neurotechnology SDKs also include support modules for these iMD scanners and sensors:
- GF631BR (FABALIS) – single-finger fingerprint reader with FBI PIV (FAP30) certification and MOSIP compliance.
- GF851ER (ROSSII) – 4-4-2 fingerprint reader with FAP50 certification and MOSIP compliance.

