The Kerbl 10500 Moocall Calving Alert is a non-invasive, tail-mounted sensor designed to monitor calving cows and heifers. It detects early signs of labor by tracking tail movements and sends SMS alerts to up to two phone numbers and notifications to the Moocall app approximately 1-2 hours before calving. This genuine Moocall device, distributed by Kerbl, helps farmers prevent calving difficulties and reduce calf mortality by ensuring timely intervention. It features a long-lasting battery, a robust design suitable for farm environments, and is easy to attach and use.