Necklaces are to be used like collars, with the main difference that there is no bel...
The system attaches to the tail and a bar can be used as an extension to allow the b...
Available at 1 or MHz within 148-221MHz...
Affordable and simple VHF receiver. It covers 0.48 MHz within 148-222MHz as specifie...
To be attached to existing GPS equipment...
Freshwater fish and other freswhater species can be studied with VHF radio tracking ...