SubGravity Defender CCR Head Upgrade, featuring the new SG-1 controller! Simple multi LED HUD Rock-steady setpoint control Integrated deco and trimix (Buhlmann ZHL-16C w/ GF) Alternative Gradient Factors for OC gases High contrast, true color LCD-TFT display - 2.4" Ambient light sensor for adjustment of LCD brightness USB interface for easy firmware update 300m (984 feet) rated, stainless steel, removable connectors for all electronics Logs scrubber changed, sensor age and date of last calibration Log book Stainless steel solenoid (with new head) 7 bailout gases 2 setpoints 3 diluent gases 4 digital setpoints, 1 manual mode Tested to 150m before leaving factory For more in-depth information on our rebreather offerings, check out: ccr.sub-gravity.com