Chose One SW-420 Electric Vehicle Alarm Vibration Sensor and Horn: Normally closed vibration sensor
For the DIY electric vehicle owner who wants to add a simple, reliable vibration alarm, this SW-420 sensor is your go-to solution. It's perfect for detecting bumps or tampering on your e-bike, scooter, or small EV, giving you peace of mind when parked in public spaces.
Unlike complex security systems, this sensor offers a straightforward normally closed setup that triggers an alarm horn with minimal wiring. The on-board LM393 comparator lets you adjust sensitivity easily, so you can fine-tune it to ignore minor vibrations while catching real threats. Install it with the fixed bolt-hole for a secure fit, and enjoy quick conductive response in about 2ms for instant alerts.
Features
- Digital output D0
- On-board sensitivity adjustment
- Wide voltage LM393 comparator
- Through hole mounting
- Operating temperature -40°F to +176°F
- Normally closed vibration sensor
General specs
- Brand: Chose One
- Model: SW-420
- Seller: Joom
- ID: 691ccd57c9ec3e01e7610da6
- Horn Color: Blue
- Sensor Type: Normally Closed Vibration Sensor
- Model Number: SW-420
- Product Type: Electric Vehicle Alarm
- First listed by seller: 12/6/25
If you are interested in more details, you can find full information on the seller's page.
Shipping options
United States
Comparison with similar products
| This item | Recommendations | |||||
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Chose One SW-420 Normally closed vibration sensor
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| Brand | Chose One | EVE | AKAMATIΣ | SwitchBot | Third Reality | |
| Model | SW-420 | 20EBN9901 | TH02 | HPS v2.2 | W1101500 | 3RVS01031Z |
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| Price | $6.26 | $33.95 | $17.91 | $16.99 | $24.99 | $14.99 |
| Seller | Joom | Amazon | Gshopper | Amazon | Amazon | Amazon |
| Update | January 27, 2026 | January 21, 2026 | July 25, 2024 | January 21, 2026 | January 21, 2026 | January 21, 2026 |
| Sensor Type | Normally Closed Vibration Sensor | External Probe | Millimeter Wave Radar | Millimeter Wave Radar, PIR (Passive Infrared) | ||
| Connectivity | Thread | Wi-Fi | Bluetooth | |||
| Power Source | Battery | USB | Rechargeable Battery | |||
