HTZSAFE Solar Motion 4-Sensor Kit
Four solar motion sensors for watching a driveway, gate, path and shed at once, with nothing to recharge.
Amazon $119.99$119.99
The HTZSAFE Solar Motion 4-Sensor Kit is the better driveway alarm overall, rated 3.6 to 3.5. The HTZSAFE Solar Motion 4-Sensor Kit leads on value. The Dakota Alert Smart Break Beam 4000 wins on wireless range, expandability and features. The HTZSAFE Solar Motion 4-Sensor Kit costs $170 less ($119.99 vs $289.99).
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 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
Which should you buy?
- Choose the HTZSAFE Solar Motion 4-Sensor Kit for value ($30 per sensor ($119.99, 4 sensors) vs $289.99 per sensor ($289.99, 1 sensor)).
- Choose the Dakota Alert Smart Break Beam 4000 for wireless range (1 mile claimed wireless range vs 2,640 ft claimed wireless range), expandability (up to 16 sensors per receiver vs up to 4 sensors per receiver) and features (phone alerts over Wi-Fi, relay or 12 V output, solar-charged sensor, per-sensor alerts vs solar-charged sensor, battery-powered receiver, per-sensor alerts, adjustable sensitivity).
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 | HTZSAFE Solar Motion 4-Sensor Kit | Dakota Alert Smart Break Beam 4000 |
|---|---|---|
| Overall rating | 3.6/5 | 3.5/5 |
| Wireless range 30% | 73 2,640 ft claimed wireless range | 100 1 mile claimed wireless range |
| Value 25% | 93 $30 per sensor ($119.99, 4 sensors) | 1 $289.99 per sensor ($289.99, 1 sensor) |
| Features 25% | 50 solar-charged sensor, battery-powered receiver, per-sensor alerts, adjustable sensitivity | 65 phone alerts over Wi-Fi, relay or 12 V output, solar-charged sensor, per-sensor alerts |
| Expandability 10% | 25 up to 4 sensors per receiver | 75 up to 16 sensors per receiver |
| Warranty 10% | 0 warranty not published, scored as none | 33 1-year warranty |
Specifications
| HTZSAFE Solar Motion 4-Sensor Kit | Dakota Alert Smart Break Beam 4000 | |
|---|---|---|
| Detection | ||
| Sensor type | PIR motion | Infrared break beam |
| Detection distance | 70 ft | 300 ft beam spacing |
| Adjustable sensitivity | Yes | - |
| System | ||
| Wireless range | 2,640 ft (claimed) | 1 mile (claimed) |
| Sensors in box | 4 | 1 |
| Receivers in box | 1 | 1 |
| Sensors per receiver | Up to 4 | Up to 16 |
| Price per sensor | $30 | $289.99 |
| Alerts | ||
| Phone alerts (Wi-Fi) | No | Yes |
| Receiver power | Plug-in with battery backup | Plug-in |
| Relay or 12 V output | No | Yes |
| Per-sensor alerts | Yes | Yes |
| Power and build | ||
| Sensor power | Solar, rechargeable | Solar, rechargeable |
| Sensor battery life | Built-in rechargeable battery charged by solar | Battery operated, charged by two solar panels on each beam |
| Operating temperature | - | -30 to 120°F |
| Warranty | - | 1 year |