SIAECOSYS SCJV4-01
SIAECOSYS SCJV4-01 is a 4.3-inch TFT color speedometer display for electric motorcycles and scooters, distinguished by its optional Tire Pressure Monitoring System (TPMS) sensor capability. Compact rectangular housing with adjustable display settings. Four bundle options: display alone, display + horn, display + TPMS sensor, or display + horn + TPMS. The TPMS sensor variant adds a wireless tire pressure gauge widget to the display's main interface. Dual-protocol: supports SIAECOSYS ONE-LIN and CAN BUS (inferred from family convention). Sits between the compact SCJ313 (3.13") and the 5-inch SCJ5066-1 in the SIAECOSYS SCJ TFT lineup.
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 - 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 $60.90. Over the past 90 days: low $60.78, high $67.70, average $62.70 — down 3% vs average.
- AliExpress - Zhejiang Siaecosys Technology Co., Ltd. Store
- AliExpress - SIA Tech Store
| Date | Price | Shipping | Total | Change | Coupon | Rating | Sales | In Stock | Status |
|---|---|---|---|---|---|---|---|---|---|
AliExpress - SIA Tech Store(22 records) | |||||||||
| May 29, 202609:35 PM | $60.90 | $12.98 | $73.88 | $0.00 | SSUS08−$8.00 | — | — | No | active |
| May 28, 202606:58 PM | $60.90 | $12.98 | $73.88 | $0.00 | — | — | — | No | active |
| May 23, 202607:33 PM | $60.90 | $12.98 | $73.88 | $0.00 | — | — | — | Yes | active |
| May 23, 202607:33 PM | $60.90 | $12.98 | $73.88 | $0.00 | — | — | — | Yes | active |
| May 23, 202607:32 PM | $60.90 | $12.98 | $73.88 | $0.00 | — | — | — | Yes | active |
| May 23, 202607:31 PM | $60.90 | $12.98 | $73.88 | $6.77 | — | — | — | Yes | active |
| May 22, 202605:13 PM | $67.67 | $12.98 | $80.65 | $0.00 | — | — | — | Yes | active |
| May 22, 202605:12 PM | $67.67 | $12.98 | $80.65 | $0.00 | — | — | — | Yes | active |
| May 22, 202605:12 PM | $67.67 | $12.98 | $80.65 | $0.00 | — | — | — | Yes | active |
| May 22, 202605:11 PM | $67.67 | $12.98 | $80.65 | $0.03 | USSS05−$5.00 | — | — | Yes | active |
| May 21, 202605:28 PM | $67.70 | $12.99 | $80.69 | $0.00 | — | — | — | Yes | active |
| May 21, 202605:27 PM | $67.70 | $12.99 | $80.69 | $0.00 | — | — | — | Yes | active |
| May 21, 202605:27 PM | $67.70 | $12.99 | $80.69 | $0.00 | — | — | — | Yes | active |
| May 21, 202605:26 PM | $67.70 | $12.99 | $80.69 | $0.00 | USSS05−$5.00 | — | — | Yes | active |
| May 19, 202605:20 PM | $67.70 | $12.99 | $80.69 | $0.00 | — | — | — | Yes | active |
| May 19, 202605:20 PM | $67.70 | $12.99 | $80.69 | $0.00 | — | — | — | Yes | active |
| May 19, 202605:19 PM | $67.70 | $12.99 | $80.69 | $0.00 | — | — | — | Yes | active |
| May 19, 202605:19 PM | $67.70 | $12.99 | $80.69 | $0.13 | USSS05−$5.00 | — | — | Yes | active |
| May 18, 202605:16 PM | $67.57 | $12.96 | $80.53 | $0.00 | — | — | — | Yes | active |
| May 18, 202605:16 PM | $67.57 | $12.96 | $80.53 | $0.00 | — | — | — | Yes | active |
| May 18, 202605:15 PM | $67.57 | $12.96 | $80.53 | $0.00 | — | — | — | Yes | active |
| May 18, 202605:15 PM | $67.57 | $12.96 | $80.53 | Initial | USSS05−$5.00 | — | — | Yes | active |
AliExpress - Zhejiang Siaecosys Technology Co., Ltd. Store(22 records) | |||||||||
| May 29, 202609:29 PM | $62.25 | $12.98 | $75.23 | $0.00 | SSUS08−$8.00 | — | — | No | active |
| May 28, 202606:51 PM | $62.25 | $12.98 | $75.23 | $0.00 | — | — | — | No | active |
| May 23, 202607:29 PM | $62.25 | $12.98 | $75.23 | $0.00 | — | — | — | Yes | active |
| May 23, 202607:29 PM | $62.25 | $12.98 | $75.23 | $0.00 | — | — | — | Yes | active |
| May 23, 202607:28 PM | $62.25 | $12.98 | $75.23 | $0.00 | — | — | — | Yes | active |
| May 23, 202607:27 PM | $62.25 | $12.98 | $75.23 | $1.38 | — | — | — | Yes | active |
| May 22, 202605:10 PM | $60.87 | $12.98 | $73.85 | $0.00 | — | — | — | Yes | active |
| May 22, 202605:09 PM | $60.87 | $12.98 | $73.85 | $0.00 | — | — | — | Yes | active |
| May 22, 202605:09 PM | $60.87 | $12.98 | $73.85 | $0.00 | — | — | — | Yes | active |
| May 22, 202605:08 PM | $60.87 | $12.98 | $73.85 | $0.04 | USSS05−$5.00 | — | — | Yes | active |
| May 21, 202605:24 PM | $60.91 | $12.99 | $73.90 | $0.00 | — | — | — | Yes | active |
| May 21, 202605:23 PM | $60.91 | $12.99 | $73.90 | $0.00 | — | — | — | Yes | active |
| May 21, 202605:23 PM | $60.91 | $12.99 | $73.90 | $0.00 | — | — | — | Yes | active |
| May 21, 202605:22 PM | $60.91 | $12.99 | $73.90 | $0.00 | USSS05−$5.00 | — | — | Yes | active |
| May 19, 202605:17 PM | $60.91 | $12.99 | $73.90 | $0.00 | — | — | — | Yes | active |
| May 19, 202605:16 PM | $60.91 | $12.99 | $73.90 | $0.00 | — | — | — | Yes | active |
| May 19, 202605:16 PM | $60.91 | $12.99 | $73.90 | $0.00 | — | — | — | Yes | active |
| May 19, 202605:15 PM | $60.91 | $12.99 | $73.90 | $0.13 | USSS05−$5.00 | — | — | Yes | active |
| May 18, 202605:13 PM | $60.78 | $12.96 | $73.74 | $0.00 | — | — | — | Yes | active |
| May 18, 202605:12 PM | $60.78 | $12.96 | $73.74 | $0.00 | — | — | — | Yes | active |
| May 18, 202605:12 PM | $60.78 | $12.96 | $73.74 | $0.00 | — | — | — | Yes | active |
| May 18, 202605:11 PM | $60.78 | $12.96 | $73.74 | Initial | USSS05−$5.00 | — | — | Yes | active |
Reviews
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Specifications
Specifications
- Protocols
- SiAECOSYS ONE-LIN, SiAECOSYS CAN BUS
- Screen Size
- 109mm
- Light Control
- No
- Phone Charger
- No
- Bluetooth
- No
Physical
- Weight
- 600 g
Ports & Connectors
| Pin | Wire color | Function |
|---|---|---|
| 1 | Orange | Turn Signal Left |
| 2 | Black | Power Switch Signal |
| 3 | Green | Ground |
| 4 | Brown | Turn Signal Right |
| 5 | Blue | High Beam |
| 6 | Red | Battery + |
| 7 | White | CAN Low |
| 8 | Yellow | CAN High |
| 9 | Purple | One-Wire Comm |
