For Cows TANNAK offer two versions of it’s collar depending on you needs.
ÁHKKÁ – If the cow is wandering all year we would recommend using our collar with and integrated solarpanel which enables the battery to be charged. The Áhkká collar can be delivered with a circumference of 63 cm or up to 125 cm.
NÍJAK – If your cows just spend part of the year free grazing you have the option to use a collar that is charged using induction and will fully charged have a battery life of up to 300 days without recharging.
The system have been tested on the Aubrac Cow in the south of France.