Trim Weight Pockets, Auto Air for OC Bailout, Dive Timer, APD Communicator software and PC interface, Logviewer Software, software Upgradeable, Head-Up Displays, Dual Power Supplies, Audible Warnings, Battery Status Indicator, Sealed Battery Box, Automatic Setpoint Switch.

WARNING: Diving deeper than 100m carries the following additional risks.

Deeper than 100m: CO2 endurance unknown.
Deeper than 100m: Onboard decompression. invalid.
Deeper than 110m: Work of breathing with Trimix diluent unknown.
Deeper than 130m:Â Depth gauge inaccurate.
Deeper than 150m: Work of breathing with an Heliox diluent unknown.
Deeper than 160m: Structural integrity of components unknown - the air cavity within the buzzer will implode, eventually and other components may fail.

Long term storage: +5°C to +20°C

The rebreather operating temperature range is determined at the cold end by the CO2 duration trials, which are done at 4°C(±1). Below this temperature the duration of the CO2 absorbent has not been empirically determined. If stored below 0°C the CO2 absorbent and electronics will need gentle preheating prior to use by placing in a warmer room or by submersing the assembled rebreather with mouthpiece closed (loop sealed) until temperature of the equipment matches the ambient temperature. Below 0°C the liquid crystal display in the handset freezes to a solid black and is unusable. Water is an essential part of the CO2 absorption reactions (approx. 17% of Sofnolime is water), below freezing point the first reaction where CO2 and water react to form Carbonic acid cannot take place. If a pre-breathing method of warming the Sofnolime is used, this must be done on land under supervision.