Pros:

• Infrared sensor picks up people as well as vehicles
• Quick and simply installation, no wires, nothing buried.
• Less expensive than magnetic probe systems.

Pros:

• Magnetic probe driveway sensor only detects moving metal
• Never have false alarms from animals, birds etc.
• Unit can be buried and hidden, leaving your property looking perfect.

Pros:

• Rubber hose sensor only alerts when something heavy travels over it.
• The least expensive driveway sensor type.
• Quick and easy to install.

Cons:

• False alarms from large animals, birds etc.
• Sensor has to be above ground and pointed across driveway.

Cons:

• Slightly more expensive than infrared sensors.
• Probe should be buried with wire running back to the wireless transmitter.

Cons:

• Does not work well in snow.
• Hose has to be across the top of the driveway.
• The rubber eventually breaks down from weather.