$163.19$191.99per unit
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This item is currently out of stock.
Special order from T-H Marine Supplies — Estimated 2–4 weeks.
Quick Specs
Sensors Included: 2Sensor Quantity - Max: 2
Description
2-Way Boat Alarm System
Protects your boat and valuable equipment from theft.
Features:
- Shock Sensor Detects Intruders
- Alerts you up to 3000 Yards when Activated
- Two Way Remote Alerts with Sound, Light & Vibration
- Up to 3000 Yards Response and 1000 Yards Transmit
- 128 db Alarm Horn
- Waterproof Main Engine
- Shock Sensor with Sensitivity Adjustment
- Easy Installation
WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.
Quick Specs
Sensors Included = 2 | Sensor Quantity - Max = 2
Accessories (1)
Specifications
| SKU | TWA-1-DP |
| UPC | 733572073454 |
| Brand | T-H Marine Supplies |
| Category | Boat Outfitting |
| Country of Origin | UNITED STATES |
| Weight | 0.8 |
| Dimensions | 8 x 8 x 2 |
| Status | Active |
| Last Synced | 10/7/2026, 2:06:40 AM |
Compliance & Shipping
WARNINGProp 65 Notice
WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.
Returnable
Product Literature
No literature or manuals available for this product.
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Frequently Bought Together
Compare Key Features
| Feature |  T-H Marine 2-Way Boat Alarm System CURRENT |  Siren Marine High Water Sensor f/Siren 3 |  Sensar Boat Monitor w/Bilge Sentry |  Siren Marine Battery Sensor f/Siren 3 |  Siren Marine Temp Sensor f/Siren 3 |
|---|---|---|---|---|---|
| Price | $163.19 | $107.80 | $424.15 | $107.80 | $107.80 |
| Brand | T-H Marine Supplies | Siren Marine | Sensar Marine | Siren Marine | Siren Marine |
| Condition | New | New | New | New | New |
| Availability | Out of Stock | In Stock | In Stock | In Stock | In Stock |
| Weight | 0.8 | 0.39 | 2.92 | 0.38 | 0.35 |
| Dimensions | 8 x 8 x 2 | 4 x 3 x 2 | 10 x 8 x 3 | 4 x 3 x 2 | 4 x 3 x 2 |
| SKU | TWA-1-DP | SM-WLS3-HIWS-917 | BMBS700 | SM-WLS3-BATT-917 | SM-WLS3-TEMP-917 |
| Country | UNITED STATES | 107.80 | CHINA | 107.80 | 107.80 |
| View Item | View Item | View Item | View Item | View Item |
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Price
$163.19