ES-420-ECO-20-BKP Accessory The Installed Bulkheads option can

The Installed Bulkheads option can include up to 5 pre-drilled and pre-installed type N bulkheads with waterproof gaskets for built in radios

please review the online User Guide

135 mm (L) ✕ 44 mm (W) ✕ 35 mm (H) (28mm body)

This LifeTag is specifically mounted in a snake suture housing appropriate for external attachment

ES-420-ECO-20-BKP Accessory The Installed Bulkheads option canA no nonsense workhorse capable of collecting GPS as frequently as every 10 minutes* and sending data over GSM daily*. Built on the ES 420 these ECO units range from 13 20g. These units can be set up with 3 GPS collection intervals that automatically switch dependent on the battery voltage for maximum efficiency and data reliability.