This Ring Outside Door Sensor is $17 off at Amazon, below the 90-day average of $30. The weather-resistant sensor runs on a battery rated for up to 10 years and works without a base station. Professional Monitoring requires a compatible Ring subscription and is sold separately. Shipping is free for Prime members. Buy Now at Amazon
Features
Sends alerts when a gate, shed, garage, or other outdoor entry opens Weather-resistant (IP66) for rain, snow, and sun from -4°F to 120°F Battery lasts up to 10 years Stays connected through Amazon Sidewalk if home Wi-Fi drops No base station needed Works w/ Ring cameras and optional 24/7 Professional Monitoring (sold separately)
