SIAECOSYS SCJ5066-1
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.
Specs verified Jul 26, 2026
Where to Find
Prices tracked across 2 sellersAliExpress - SIA Tech Store
Out of stockAliExpress - SIA Tech Store
Out of stockAliExpress - Zhejiang Siaecosys Technology Co., Ltd. Store
Out of stock* Shipping estimates are for the contiguous US and may vary by location.
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Price History
Current best price $72.46. Over the past 90 days: low $72.32, high $91.83, average $77.30 — down 6% vs average.
- AliExpress - Zhejiang Siaecosys Technology Co., Ltd. Store
- AliExpress - SIA Tech Store
- AliExpress - SIA Tech Store
| Date | Price | Shipping | Total | Change | Coupon | Rating | Sales | In Stock | Status |
|---|---|---|---|---|---|---|---|---|---|
AliExpress - SIA Tech Store(7 records) | |||||||||
| May 29, 202610:12 PM | $72.46 | $0.00 | $72.46 | $0.00 | SSUS08−$8.00 | — | — | No | active |
| May 28, 202607:32 PM | $72.46 | $0.00 | $72.46 | $0.00 | — | — | — | No | active |
| May 23, 202607:55 PM | $72.46 | $0.00 | $72.46 | $0.00 | — | — | — | No | active |
| May 22, 202605:28 PM | $72.46 | $0.00 | $72.46 | $0.05 | USSS05−$5.00 | — | — | No | active |
| May 21, 202605:47 PM | $72.51 | $0.00 | $72.51 | $0.00 | USSS05−$5.00 | — | — | No | active |
| May 19, 202605:36 PM | $72.51 | $0.00 | $72.51 | $0.19 | USSS05−$5.00 | — | — | No | active |
| May 18, 202605:32 PM | $72.32 | $0.00 | $72.32 | Initial | USSS05−$5.00 | — | — | No | active |
AliExpress - SIA Tech Store(25 records) | |||||||||
| May 29, 202607:05 PM | $77.20 | $13.03 | $90.23 | $0.00 | SSUS08−$8.00 | — | — | No | active |
| May 28, 202604:53 PM | $77.20 | $13.03 | $90.23 | $0.00 | — | — | — | Yes | active |
| May 28, 202604:52 PM | $77.20 | $13.03 | $90.23 | $0.03 | — | — | — | Yes | active |
| May 27, 202606:14 PM | $77.17 | $13.02 | $90.19 | $0.00 | — | — | — | Yes | active |
| May 27, 202606:13 PM | $77.17 | $13.02 | $90.19 | $0.17 | — | — | — | Yes | active |
| May 25, 202611:00 PM | $77.00 | $12.98 | $89.98 | $0.00 | — | — | — | No | active |
| May 23, 202606:05 PM | $77.00 | $12.98 | $89.98 | $0.00 | — | — | — | Yes | active |
| May 23, 202606:05 PM | $77.00 | $12.98 | $89.98 | $1.71 | — | — | — | Yes | active |
| May 22, 202604:03 PM | $75.29 | $12.98 | $88.27 | $0.00 | — | — | — | Yes | active |
| May 22, 202604:02 PM | $75.29 | $12.98 | $88.27 | $0.04 | USSS05−$5.00 | — | — | Yes | active |
| May 21, 202604:06 PM | $75.33 | $12.99 | $88.32 | $0.00 | — | — | — | Yes | active |
| May 21, 202604:06 PM | $75.33 | $12.99 | $88.32 | $0.00 | USSS05−$5.00 | — | — | Yes | active |
| May 19, 202604:09 PM | $75.33 | $12.99 | $88.32 | $0.00 | — | — | — | Yes | active |
| May 19, 202604:09 PM | $75.33 | $12.99 | $88.32 | $0.16 | USSS05−$5.00 | — | — | Yes | active |
| May 18, 202604:05 PM | $75.17 | $12.96 | $88.13 | $0.00 | — | — | — | Yes | active |
| May 18, 202604:05 PM | $75.17 | $12.96 | $88.13 | $1.87 | USSS05−$5.00 | — | — | Yes | active |
| May 17, 202602:09 PM | $77.04 | $12.99 | $90.03 | $0.00 | — | — | — | Yes | active |
| May 17, 202602:08 PM | $77.04 | $12.99 | $90.03 | $0.00 | — | — | — | Yes | active |
| May 16, 202602:13 PM | $77.04 | $12.99 | $90.03 | $0.00 | — | — | — | Yes | active |
| May 16, 202602:13 PM | $77.04 | $12.99 | $90.03 | $0.00 | — | — | — | Yes | active |
| May 15, 202601:21 PM | $77.04 | $12.99 | $90.03 | $0.00 | — | — | — | Yes | active |
| May 15, 202601:21 PM | $77.04 | $12.99 | $90.03 | $0.04 | SRUS02−$2.00 | — | — | Yes | active |
| May 14, 202603:47 PM | $77.08 | $13.00 | $90.08 | $0.00 | SRUS04−$4.00 | — | — | No | active |
| May 12, 202611:49 AM | $77.08 | $13.00 | $90.08 | $0.00 | — | — | — | Yes | active |
| May 12, 202611:49 AM | $77.08 | $13.00 | $90.08 | Initial | SRUS07−$7.00 | — | — | Yes | active |
AliExpress - Zhejiang Siaecosys Technology Co., Ltd. Store(4 records) | |||||||||
| May 29, 202606:00 PM | $91.83 | $13.03 | $104.86 | $0.00 | — | — | — | No | active |
| May 28, 202604:16 PM | $91.83 | $13.03 | $104.86 | $0.50 | — | — | — | Yes | active |
| May 27, 202605:37 PM | $91.33 | $13.02 | $104.35 | $0.00 | — | — | — | Yes | active |
| May 25, 202610:03 PM | $91.33 | $13.02 | $104.35 | Initial | — | — | — | Yes | active |
Reviews
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Specifications
Specifications
- Protocols
- SiAECOSYS ONE-LIN, SiAECOSYS CAN BUS
- Screen Size
- 127mm
- Light Control
- No
- Phone Charger
- No
- Bluetooth
- Yes
Physical
- IP Rating
- IP65
Ports & Connectors
| Pin | Wire color | Function |
|---|---|---|
| 1 | Orange | Turn Signal Left |
| 2 | Black | Power Switch Signal |
| 3 | Green | Ground |
| 4 | Light Blue | Turn Signal Right |
| 5 | Blue | High Beam |
| 6 | Red | Battery + |
| 7 | Green / Black | CAN Low |
| 8 | Red / Black | CAN High |
| 9 | Purple | One-Wire Comm |
| Pin | Wire color | Function |
|---|---|---|
| 1 | Green | Speaker - |
| 2 | Brown | Speaker + |
| Pin | Wire color | Function |
|---|---|---|
| 1 | Green | Speaker - |
| 2 | Brown | Speaker + |
| Pin | Wire color | Function |
|---|---|---|
| 1 | No color | None |
