Tag builder

Your Diameter (mm)

Transmit interval

Power options

Output Options

Select needed output options and customize your tag


The Thelma Biotel transmitters are energy efficient and versatile platforms developed for a wide range of studies on aquatic species and submerged equipment. The various transmitters are produced in four main capsule diameters: 7.3 mm, 9 mm, 13 mm, and 16 mm. Transmitter lengths depend on the possible addition of sensors, output power and the desired active lifetime.

Size (mm)

Battery Life(Month)

Power Output

Weight - Air

Weight - Underwater