Dakota Alert MTPR-4000
A one-mile motion kit with a pocket receiver, for people who spend the day outside or in a workshop rather than by a wall chime.
Amazon $79.99$79.99
The Dakota Alert MTPR-4000 rates 3.5 among motion and beam sensors driveway alarms; the Dakota Alert DUAL-4k Plus rates 3.1 among vehicle-only sensors ones. The Dakota Alert MTPR-4000 costs $250 less ($79.99 vs $329.99).
Prices were last checked November 9, 2026. Product prices and availability are accurate as of that date and are subject to change; the price and availability shown on Amazon or the retailer's site at the time of purchase apply. As an Amazon Associate we earn from qualifying purchases.
Dakota Alert DUAL-4k Plus
For a drive with steady traffic where knowing whether someone is coming or going matters, such as a farm or business entrance.
Amazon $329.99$329.99
Scores side by side
These two sit in different sensor type classes (motion and beam sensors and vehicle-only sensors), and each is scored against the reference points for its own class, so a rating says how well each does among its own sensor type peers. How we rank explains each factor.
| Factor weight | Dakota Alert MTPR-4000 | Dakota Alert DUAL-4k Plus |
|---|---|---|
| Overall rating | 3.5/5 | 3.1/5 |
| Wireless range 30% | 100 1 mile claimed wireless range | 100 1 mile claimed wireless range |
| Value 25% | 53 $79.99 per sensor ($79.99, 1 sensor) | 0 $329.99 per sensor ($329.99, 1 sensor) |
| Features 25% | 25 battery-powered receiver, per-sensor alerts | 25 relay or 12 V output, per-sensor alerts |
| Expandability 10% | 75 up to 16 sensors per receiver | 75 up to 16 sensors per receiver |
| Warranty 10% | 0 warranty not published, scored as none | 33 1-year warranty |
Specifications
| Dakota Alert MTPR-4000 | Dakota Alert DUAL-4k Plus | |
|---|---|---|
| Detection | ||
| Sensor type | PIR motion | Magnetic probe |
| Detection distance | 100 ft | - |
| System | ||
| Wireless range | 1 mile (claimed) | 1 mile (claimed) |
| Sensors in box | 1 | 1 |
| Receivers in box | 1 | 1 |
| Sensors per receiver | Up to 16 | Up to 16 |
| Price per sensor | $79.99 | $329.99 |
| Alerts | ||
| Phone alerts (Wi-Fi) | No | No |
| Receiver power | Portable, rechargeable | Plug-in |
| Relay or 12 V output | No | Yes |
| Per-sensor alerts | Yes | Yes |
| Power and build | ||
| Sensor power | 9 V battery | CR123A batteries |
| Sensor battery life | A year or more on one 9 V battery | A year or more on three CR123A batteries (included) |
| Operating temperature | -30 to 120°F | -30 to 120°F |
| Warranty | - | 1 year |