A low-cost two-sensor solar kit for a driveway and a second entrance, when a chime in the house is all you need.
Amazon $69.99The eMACROS HS002 Solar 2-Sensor Kit is the better driveway alarm overall, rated 3.7 to 3.6. The eMACROS HS002 Solar 2-Sensor Kit leads on expandability. The HTZSAFE Solar Motion 4-Sensor Kit wins on features. The eMACROS HS002 Solar 2-Sensor Kit costs $50 less ($69.99 vs $119.99).
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.
Four solar motion sensors for watching a driveway, gate, path and shed at once, with nothing to recharge.
Amazon $119.99Which should you buy?
- Choose the eMACROS HS002 Solar 2-Sensor Kit for expandability (up to 64 sensors per receiver vs up to 4 sensors per receiver).
- Choose the HTZSAFE Solar Motion 4-Sensor Kit for features (solar-charged sensor, battery-powered receiver, per-sensor alerts, adjustable sensitivity vs solar-charged sensor, 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 | eMACROS HS002 Solar 2-Sensor Kit | HTZSAFE Solar Motion 4-Sensor Kit |
|---|---|---|
| Overall rating | 3.7/5 | 3.6/5 |
| Wireless range 30% | 73 2,600 ft claimed wireless range | 73 2,640 ft claimed wireless range |
| Value 25% | 86 $34.99 per sensor ($69.99, 2 sensors) | 93 $30 per sensor ($119.99, 4 sensors) |
| Features 25% | 35 solar-charged sensor, per-sensor alerts, adjustable sensitivity | 50 solar-charged sensor, battery-powered receiver, per-sensor alerts, adjustable sensitivity |
| Expandability 10% | 100 up to 64 sensors per receiver | 25 up to 4 sensors per receiver |
| Warranty 10% | 0 warranty not published, scored as none | 0 warranty not published, scored as none |
Specifications
| eMACROS HS002 Solar 2-Sensor Kit | HTZSAFE Solar Motion 4-Sensor Kit | |
|---|---|---|
| Detection | ||
| Sensor type | PIR motion | PIR motion |
| Detection distance | 30 ft | 70 ft |
| Adjustable sensitivity | Yes | Yes |
| System | ||
| Wireless range | 2,600 ft (claimed) | 2,640 ft (claimed) |
| Sensors in box | 2 | 4 |
| Receivers in box | 1 | 1 |
| Sensors per receiver | Up to 64 | Up to 4 |
| Price per sensor | $34.99 | $30 |
| Alerts | ||
| Phone alerts (Wi-Fi) | No | No |
| Receiver power | Plug-in | Plug-in with battery backup |
| Relay or 12 V output | No | No |
| Per-sensor alerts | Yes | Yes |
| Power and build | ||
| Sensor power | Solar, rechargeable | Solar, rechargeable |
| Sensor battery life | Built-in rechargeable batteries charged by solar | Built-in rechargeable battery charged by solar |
