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SIAECOSYS SCJ5066-1 is a 5-inch TFT color speedometer display for electric motorcycles — the flagship of the SIAECOSYS SCJ TFT family. 800×480 resolution, widest operating temperature range in the family at −30°C to +80°C, and IP65 rated. Full multimedia feature set: FM radio, USB MP3 / MP4 playback, Bluetooth pairing (appears as 'CJ-B' device) for phone caller ID and music streaming, and 5W / 4Ω × 2-channel amplifier output for a horn or external speakers. Dual-protocol: SIAECOSYS ONE-LIN or CAN BUS, firmware-selectable. Per the QS Motor product page, this speedometer **will only work with Fardriver and VOTOL controllers sourced through SIAECOSYS** — generic or third-party versions of the same controller families may use different CAN profiles and fail to communicate. Shows speed, battery, gear, odometer, fault codes, and customizable themes. Designed for premium e-motorcycle builds.

In brief: E-bike display. Protocols: SiAECOSYS ONE-LIN, SiAECOSYS CAN BUS. From $70 across 3 sellers.

Specifications

Protocols
SiAECOSYS ONE-LIN, SiAECOSYS CAN BUS
Screen Size
127mm
Light Control
No
Phone Charger
No
Bluetooth
Yes

Ports & Connectors

Main Connector
DisplayPower SwitchCAN Bus
1Turn Signal Left
2Power Switch Signal
3Ground
4Turn Signal Right
5High Beam
6Battery +
7CAN Low
8CAN High
9One-Wire Comm
Right Speaker
Other
1Speaker -
2Speaker +
Left Speaker
Other
1Speaker -
2Speaker +
USB Software Upgrade
Radio Antenna1 wire
1None

Where to Find

Prices tracked across 3 sellers

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