SARY SY-168G Fingerprint Relay Control Module DC 7-30V

SARY SY-168G Fingerprint Identification Relay Control Module

Take command of your access control, vehicle security, or industrial automation with the SARY SY-168G Fingerprint Relay Control Board. This versatile DC 7–30V fingerprint identification module delivers fast, reliable biometric authentication paired with a robust relay output — all in a compact, plug-in design that makes DIY installation straightforward and hassle-free. Made in Mainland China.

Key Features

• Wide Voltage Compatibility: Operates on DC 7V–30V, making it compatible with a broad range of power supplies and application environments.
• Three Switchable Control Modes: Choose from Inching (Jog), Self-Locking, or Ignition (Momentary) mode to suit your specific application.
• Adjustable Jog Output Timer: In Inching mode, the output duration is fully adjustable — up to 15 minutes — giving you precise timing control.
• Relay NO/NC Signal Output: Supports both normally open and normally closed contact configurations for maximum wiring flexibility.
• Up to 10A Load Capacity: The onboard relay handles loads with currents under 10A, suitable for electric locks, motors, and other controlled devices.
• Expandable Fingerprint Storage: Standard capacity stores up to 50 fingerprints; upgradeable to 300 or 500 fingerprints to meet larger deployment needs.
• Exit Button Compatible: Easily connect an external exit/push button for added convenience.
• Plug-In Connector Design: Tool-friendly plug-in terminals make wiring quick, clean, and easy to modify.

Three Control Modes Explained

Inching Mode (Jog): The relay activates immediately upon fingerprint recognition. After releasing your finger and once the user-set delay time elapses, the relay automatically deactivates. Ideal for timed door releases or momentary equipment activation.

Self-Locking Mode: The relay latches ON after a successful fingerprint scan. It remains active until the next valid fingerprint scan is detected, at which point it deactivates. Perfect for toggle-style control of lights, gates, or machinery.

Ignition (Momentary) Mode: The relay stays ON only while your finger remains on the sensor. The moment you lift your finger, the relay immediately deactivates. Great for vehicle ignition or any application requiring continuous-press authorization.

Specifications at a Glance

• Model: SY-168G
• Brand: SARY
• Input Voltage: DC 7V – 30V
• Relay Output: NO / NC contacts, max 10A load
• Fingerprint Capacity: 50 (standard) / upgradeable to 300 or 500
• Control Modes: Inching, Self-Locking, Ignition
• Jog Timer Range: Adjustable, up to 15 minutes
• Connection Type: Plug-in terminal blocks
• Compatible Applications: Access control, automotive, electrical control, industrial automation, DIY projects
• Origin: Made in Mainland China

What's in the Box?

• 1 × SARY SY-168G Fingerprint Relay Control Board

For general guidance on biometric access control standards and best practices in electronic security systems, refer to the NIST Biometrics Resource Center.

Frequently Asked Questions

Q: What voltage range does the SARY SY-168G fingerprint relay module support?

A: The SY-168G fingerprint control board operates on a wide DC input range of 7V to 30V, making it compatible with 12V and 24V systems commonly used in access control, automotive, and industrial control applications.

Q: How many fingerprints can the SY-168G store, and can capacity be expanded?

A: The module ships with a standard capacity of 50 fingerprints. The storage can be upgraded to 300 or 500 fingerprints to support larger organizations or multi-user environments.

Q: What is the difference between the three control modes on this fingerprint relay board?

A: Inching (Jog) Mode activates the relay for a set delay period after fingerprint recognition, then turns off automatically. Self-Locking Mode toggles the relay on or off with each successive fingerprint scan. Ignition Mode keeps the relay active only as long as the finger is held on the sensor, disconnecting the moment the finger is removed.

Q: Can this fingerprint module be used for DIY automotive or home access control projects?

A: Yes. The plug-in terminal connectors, wide voltage compatibility (DC 7–30V), and three switchable control modes make the SY-168G an excellent choice for DIY access control installations, car security modifications, home automation, and industrial control setups.

Q: What is the maximum load the relay on the SY-168G can handle?

A: The onboard relay supports loads with a current of less than 10A, accommodating electric locks, solenoids, relays, and a wide variety of standard controlled devices.