The Birth Alarm anti-roll top part complements your Birth Alarm system for monitoring the birth of your horses. The transmitter of your Birth Alarm is attached to this Alarm anti-roll top part, which triggers the alarm as soon as your pregnant mare moves into the side position, the typical birth position. With the Alarm anti-roll top standard you can easily and reliably attach the transmitter of the monitoring system to the animal. The waist belt is available separately (in different sizes).