Recommended only if your Tempest sensor device is frequently visited by perching birds. Only a small percentage of owners might need to mitigate a perching bird. A bird deterrent is only recommended if you are absolutely certain the installation is consistently and frequently visited by perching birds.

Easily attaches to the head of a Tempest or SKY sensor device. 

Helps to deter most birds from perching on the device which could cause false rain readings or fouling.

*Tempest device in picture sold separately.