Waterproof 3 5mm H2 Short Venting Scuba Dive Hood Size:Medium Large Use the rigid arm in Watches Use the rigid arm in combination with Flex Connect Ball Clamp (SL9907) and Ball Joint Adapters (SL995 & SL999) to create 15 000 ft 610 4200 m Decompression Capability 10 60 ft (3 18 m) Automatic Safety Stop Prompt YES Cylinder Pressure and Air Time Remaining YES Audible Alarm YES Alarm Acknowledgment (U W Deactivation) YES Ascent Rate Range 3 9 m min 6 18 m min Ascent Rate Maximum 30 fpm 9 m min OceanGlo Backlight (Push Button) YES SmartGlo Backlight (Sensor) YES Battery Type Lithium Ion Rechargeable Battery Life* 35 60 hours between charges * depending on use and settings Low Battery Indicator (Graphic) YES Calendar Clock YES Operating Depth (Max) 330 ft 100 m Operating Depth (Gauge Mode) 330 ft 100 m 12 24 Hour Time to Fly Countdown YES Calculated Desaturation Countdown YES High O2 Alarm Warning 300 SOTU DOTU High PO2 Alarm Warning 1 PRODUCT FEATURES: Glideskin seal