The Mares  LED TANK MODULE 2.0 is a dedicated wireless transmitter for the latest

Features:

• Transmits cylinder information to Wrist Unit
• three different LED to show different cylinder pressure status
• Permanent accurate computer pairing
• EN250:2014 - transmitter certified for 300 bar usage
• Battery type: 14250, and user replaceable
• Approx battery life: 150 dives
• Dedicated to Mares Sirius Dive Computer