Dakota Alert DCMA-4k Plus
A one-mile motion kit with a relay-equipped receiver, for buyers who want a chime now and the option to wire in lights or a siren later.
Amazon $74.99$74.99
The Dakota Alert DCMA-4k Plus is the better driveway alarm overall, rated 3.6 to 3.5. The Dakota Alert DCMA-4k Plus leads on features and expandability. The Dakota Alert DCMA-4000 costs $5 less ($69.99 vs $74.99).
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 DCMA-4000
The cheapest way into a one-mile Dakota Alert system, for a long driveway where a chime in the house is enough.
Amazon $69.99$69.99
Which should you buy?
- Choose the Dakota Alert DCMA-4k Plus for features (relay or 12 V output, per-sensor alerts vs per-sensor alerts) and expandability (up to 16 sensors per receiver vs up to 12 sensors per receiver).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every motion and beam sensors driveway alarm; a clear win is highlighted. How we rank explains each one.
| Factor weight | Dakota Alert DCMA-4k Plus | Dakota Alert DCMA-4000 |
|---|---|---|
| Overall rating | 3.6/5 | 3.5/5 |
| Wireless range 30% | 100 1 mile claimed wireless range | 100 1 mile claimed wireless range |
| Value 25% | 56 $74.99 per sensor ($74.99, 1 sensor) | 59 $69.99 per sensor ($69.99, 1 sensor) |
| Features 25% | 25 relay or 12 V output, per-sensor alerts | 10 per-sensor alerts |
| Expandability 10% | 75 up to 16 sensors per receiver | 65 up to 12 sensors per receiver |
| Warranty 10% | 33 1-year warranty | 33 1-year warranty |
Specifications
| Dakota Alert DCMA-4k Plus | Dakota Alert DCMA-4000 | |
|---|---|---|
| Detection | ||
| Sensor type | PIR motion | PIR motion |
| Detection distance | 100 ft | 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 12 |
| Price per sensor | $74.99 | $69.99 |
| Alerts | ||
| Phone alerts (Wi-Fi) | No | No |
| Receiver power | Plug-in | Plug-in |
| Relay or 12 V output | Yes | No |
| Per-sensor alerts | Yes | Yes |
| Power and build | ||
| Sensor power | 9 V battery | 9 V battery |
| Sensor battery life | A year or more on one 9 V battery (not included) | A year or more on one 9 V battery (not included) |
| Operating temperature | -30 to 120°F | -30 to 120°F |
| Warranty | 1 year | 1 year |