A turtle glue-on transmitter is attached to the carapace using various epoxy adhesives. The location of the transmitter on the carapace and the antenna material and length are dependent on the turtle species. Glue-on transmitters are easily attached and removed in the field. This attachment does not affect the turtle's behavior. Field range is greater for terrestrial species than aquatic species because water interferes with the VHF signal. Better range will be realized if the enhanced range option (models with "B" suffix) is chosen.

Series	Weight (grams)	Life (days)	Description
R1605	0.5-1.2	20-392	Smallest sizes. Power output and range reduced for longer life (versus R1600 series). Minimum potting for lowest weight. Silver oxide battery, flat rectangular shape. Limited frequency availability.
R1600	1.0-3.6	15-468	Small sizes. Standard power output and potting. Silver oxide battery, flat rectangular shape.
R1500	6.0-132	64-3650	Medium to large sizes, cylindrical shape. Enhanced range option available.
R1800	5.1-15.3	13-512	Medium sized, coin cell shape, flat antenna, lithium battery.
R1900	9-23	146-1212	Medium sized,rectangular shape, low profile, lithium battery.
R2000	10-24	146-1212	Medium sized, rectangular shape, smaller footprint, lithium battery.
R2200	42-57	800-1808	rectangular shape, side-by-side lithium batteries (2). Enhanced range option available.