Fig. 3From: Development of single-pin, un-barbed, pole-tagging of free-swimming dolphins and sharks with satellite-linked transmittersFlowchart for TADpole operation. Pneumatic cylinder, trigger and micro-switch are on holster (Figs. 1 and 2), valve in valve chamber at base of pole, to which holster is attached. Controller, batteries (2 × 12 V in series), and relays are in a control box on deck. Wiring from control box, and hose from dive cylinder pass inside pole to valve chamber and then holsterBack to article page