Dakota Alert Smart Break Beam 4000
A solar break-beam with phone alerts, for covering a wide gateway or property line that a single motion sensor can’t reach across.
Amazon $289.99$289.99
Infrared break beam1 mile1
3.5/5
The cheapest way into a one-mile Dakota Alert system, for a long driveway where a chime in the house is enough.
- PIR motionSensor
- 1 mile (claimed)Wireless range
- 1Sensors in box
- Chime receiverAlerts
Check price at Amazon$69.99
Price checked November 7, 2026. As an Amazon Associate we earn from qualifying purchases.
Pros
- Claimed one-mile range reaches the house from the end of a long rural drive
- Sees people and vehicles up to 100 ft out
- Each sensor can play its own tune, so you know which one tripped
Cons
- Basic DCR-4000 receiver has no relay output and no phone alerts
- Sensor needs a 9 V battery, sold separately
- Motion sensor also trips on deer and other large animals
How it scores
The rating comes from 5 measured or published factors, each scored 0-100 against fixed reference points for its sensor type. How we rank explains each one.
Specifications
| Model number | DCMA-4000 |
|---|---|
| Detection | |
| Sensor type | PIR motion |
| Detection distance | 100 ft |
| System | |
| Wireless range | 1 mile (claimed) |
| Sensors in box | 1 |
| Receivers in box | 1 |
| Sensors per receiver | Up to 12 |
| Price per sensor | $69.99 |
| Alerts | |
| Phone alerts (Wi-Fi) | No |
| Receiver power | Plug-in |
| Relay or 12 V output | No |
| Per-sensor alerts | Yes |
| Power and build | |
| Sensor power | 9 V battery |
| Sensor battery life | A year or more on one 9 V battery (not included) |
| Operating temperature | -30 to 120°F |
| Warranty | 1 year |
Alternatives in this sensor type
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
PIR motion1 mile1
Wuloo Solar 2-Sensor Kit
A budget two-sensor solar kit for an ordinary suburban driveway close to the house.
Amazon $52.99$52.99
PIR motion1,760 ft2
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