Wireless anti-theft alarm module for VOTOL EM-series and SV-series controllers. Features a built-in siren, RF antenna, and PKE (Passive Keyless Entry) with two wireless key fob remotes. Connects via two separate connectors: a 2-pin DJ7021A for battery power (B+/B-) and a 4-pin DJ7041A for anti-theft signals (key ignition, signal input, wheel rotation). When armed, triggers alarm siren if motor wheel movement is detected. Compatible with VOTOL EM30, EM50, EM80, and SV series controllers.
Specs verified Jul 17, 2026
Where to Find
Prices tracked across 1 seller* Shipping estimates are for the contiguous US and may vary by location.
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Price History
Current best price $15.87. Over the past 90 days: low $15.85, high $16.42, average $16.33 — down 3% vs average.
- AliExpress - SIA Tech Store
| Date | Price | Shipping | Total | Change | Coupon | Rating | Sales | In Stock | Status |
|---|---|---|---|---|---|---|---|---|---|
AliExpress - SIA Tech Store(15 records) | |||||||||
| May 29, 202607:07 PM | $15.87 | $8.99 | $24.86 | $0.48 | SSUS03−$3.00 | — | — | Yes | active |
| May 28, 202604:53 PM | $16.35 | $8.97 | $25.32 | $0.01 | — | — | — | Yes | active |
| May 27, 202606:14 PM | $16.34 | $8.97 | $25.31 | $0.06 | — | — | — | Yes | active |
| May 23, 202606:06 PM | $16.40 | $8.94 | $25.34 | $0.00 | — | — | — | No | active |
| May 22, 202604:03 PM | $16.40 | $8.94 | $25.34 | $0.01 | — | — | — | Yes | active |
| May 21, 202604:07 PM | $16.41 | $8.95 | $25.36 | $0.00 | — | — | — | Yes | active |
| May 19, 202604:10 PM | $16.41 | $8.95 | $25.36 | $0.04 | — | — | — | Yes | active |
| May 18, 202604:06 PM | $16.37 | $8.93 | $25.30 | $0.04 | — | — | — | Yes | active |
| May 17, 202602:10 PM | $16.41 | $8.95 | $25.36 | $0.00 | — | — | — | Yes | active |
| May 16, 202602:14 PM | $16.41 | $8.95 | $25.36 | $0.00 | — | — | — | Yes | active |
| May 15, 202601:22 PM | $16.41 | $8.95 | $25.36 | $0.49 | SRUS02−$2.00 | — | — | Yes | active |
| May 14, 202603:49 PM | $15.92 | $8.96 | $24.88 | $0.50 | SRUS02−$2.00 | — | — | Yes | active |
| May 12, 202611:50 AM | $16.42 | $8.96 | $25.38 | $0.07 | SRUS02−$2.00 | — | — | Yes | active |
| Apr 23, 202611:57 AM | $16.35 | $8.93 | $25.28 | $0.50 | — | — | — | No | active |
| Apr 22, 202612:25 PM | $15.85 | $8.91 | $24.76 | Initial | — | — | — | Yes | active |
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Specifications
Physical
- Dimensions (L×W×H)
- 180mm × 110mm × 120mm
Ports & Connectors
| Pin | Wire color | Function |
|---|---|---|
| 1 | Orange | Anti-Theft Key |
| 2 | Blue | Anti-Theft Signal |
| 3 | Yellow | Wheel Signal |
| 4 | No color | None |
| Pin | Wire color | Function |
|---|---|---|
| 1 | Red | Battery + |
| 2 | Black | Ground |
Comes With
Frequently Asked Questions
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