Aqua Lung Analog Depth Gauge Wrist, with Armstrap, ImperialThe Aqualung Depth Gauge, Imperial, with its specially designed depth scale and luminescent gauge face, allows for easier reading at a glance High fidelity depth scale provides easier reading at shallow depths The strap is designed to fit a variety of wrist sizes and wet drysuit models Maximum depth indicator Luminescent gauge face for easy reading in low light Wrist mount boot allows for future upgrades to the i300C dive computer module Imperial