A passive infrared (PIR) motion sensor sees the heat of a person, car or large animal moving in front of it. Most reach 30 ft, a few 70 to 100 ft. A break beam sends an infrared beam between two posts up to 300 ft apart and trips when anything crosses it, which covers a wide gateway that one motion sensor can’t. Both see people as well as cars, so expect the odd alert from deer or a neighbor’s dog. Many kits now use solar-charged sensors, so there are no batteries to change.
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.
Full ranking 17
- FULNIX DA01 Solar 2-Sensor Kit#1 of 17Full review
A two-sensor solar kit with a carry-anywhere receiver, for people who want to hear the driveway from the garage or yard.
Amazon $62.99$62.99PIR motion3,000 ft2 - Dakota Alert SMA-4000 Smart#2 of 17Full review
The motion kit to get if you want driveway alerts on your phone as well as a chime, with Dakota Alert’s one-mile radio.
Amazon $104.99$104.99PIR motion1 mile1 - eMACROS HS002 Solar 2-Sensor Kit#3 of 17Full review
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 $69.99$69.99PIR motion2,600 ft2 - Hosmart Half-Mile 4-Sensor Kit#4 of 17Full review
A four-sensor battery kit with the longest published warranty here, for buyers who would rather swap AAs once a year than rely on solar.
Amazon $131.99$131.99PIR motion2,640 ft4 - eMACROS Pro 4 Wi-Fi 2-Sensor Kit#5 of 17Full review
A Wi-Fi solar kit whose base keeps alerting through an outage, for homes where the power drops now and then.
Amazon $99.99$99.99PIR motion2,600 ft2 - Dakota Alert DCMA-4k Plus#6 of 17Full review
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$74.99PIR motion1 mile1 - HTZSAFE Solar Motion 4-Sensor Kit#7 of 17Full review
Four solar motion sensors for watching a driveway, gate, path and shed at once, with nothing to recharge.
Amazon $119.99$119.99PIR motion2,640 ft4 - Betterlink NS001 Solar 4-Sensor Kit#8 of 17Full review
A four-sensor solar kit whose sensors can also scare off visitors with their own siren and light.
Amazon $109.99$109.99PIR motion2,640 ft4 - eMACROS Pro3 Wi-Fi 2-Sensor Kit#9 of 17Full review
The cheapest way to get driveway alerts on your phone with two solar sensors, for a home on 2.4 GHz Wi-Fi.
Amazon $89.99$89.99PIR motion2,600 ft2 - Dakota Alert Smart Break Beam 4000#10 of 17Full review
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$289.99Infrared break beam1 mile1 - Dakota Alert MTPR-4000#11 of 17Full review
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$79.99PIR motion1 mile1 - Dakota Alert DCMA-4000#12 of 17Full review
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$69.99PIR motion1 mile1 - Wuloo Solar 2-Sensor Kit#13 of 17Full review
A budget two-sensor solar kit for an ordinary suburban driveway close to the house.
Amazon $52.99$52.99PIR motion1,760 ft2 - HTZSAFE Solar Beam 300 ft#14 of 17Full review
A low-cost solar break-beam for covering a wide gate or field entrance, within half a mile of the house.
Amazon $119.99$119.99Infrared break beam2,640 ft1 - HTZSAFE Solar Beam 190 ft#15 of 17Full review
A budget solar break-beam for an entrance up to 190 ft wide, close enough to the house for a quarter-mile radio.
Amazon $89.99$89.99Infrared break beam1,320 ft1 - HTZSAFE Solar Beam 4-Zone Relay#16 of 17Full review
A solar beam kit for someone wiring driveway zones into an existing alarm or automation system.
Amazon $149.99$149.99Infrared break beam2,640 ft1 - Driveway Informer DI2000S#17 of 17Full review
A US-made motion kit for an average driveway within about 1,000 ft of the house.
Amazon $119.98$119.98PIR motion1,000 ft1