I have 7, approximately 5-year-old, unused GPS store-on-board collars for sale with the usual accoutrements (mortality switch, drop off) and which would be appropriate for animals > 12kg. ATS claims batteries lose ~1- 2% battery charge per year. Collar frequencies are in the 165khz range. Collars can be refurbished (new batteries) by manufacturer for much less the new collars. I can vouch that they came from a good batch with high 3D fix success and strong VHF signals. Collar specifications can be found here: http://www.atstrack.com/pdfs/ats-g2110b.pdf.
Prices are negotiable, but I am looking for somewhere around $200.
