Designed to be used with double tanks, the Tek 3 dual-regulator set comes with two overbalanced, environmentally sealed diaphragm first stages (one left-handed, one right-handed), a pair of pneumatically balanced XTX50 second stages, a 2-meter hose, a standard hose and a regulator necklace. Each first stage has three low-pressure ports for the second stage, octo and inflator, and one highpressure port for an SP G. Second stages are equipped with breathing-resistance knobs and Venturi control levers. The rig comes nitrox compatible to 40 percent from the factory, and is available with DIN fittings and all-metal hand wheels. MSRP $1,195 complete; $850 for first stages only INFO aqualung.com

Built with a military-spec aluminum casing and an eye-pleasing OLED display, the NiTek wrist-mount computer comes standard as a seven-gas trimix computer (8 percent to 99 percent O2, 0 percent to 92percent He). It uses the Buhlman ZLH 16 algorithm and offers three preset gradient factors: 30/75 (default) and 40/100 for deep or shallow spots, plus 75/95 for divers trained in custom gradients. Depth rated to 492 feet, the NiTek Q offers many options, like adding a digital compass or a CCR mode with fixed PO 2 set points. It is powered by a lithium rechargeable battery. MSRP $799 INFO diverite.com

A serious light designed for tec divers, the T110 features a rugged, anodized-aluminum-alloy housing, depth rated to 328 feet. It features a belt loop that allows you to slide the canister onto a two-inch waist belt or tank strap; there are also D-rings and quick links for attaching to a back plate. Connecting canister to light head is a 59-inch cord. The light head itself is compact and equipped with three high-power LED s that pump out 660 lumens. The rechargeable NiMH battery provides four to five hours of illumination and up to 200 recharging cycles. MSRP $950 INFO istsports.com

One look at the Power Plana, and what immediately comes to mind is “meaty.” Weighing in at just under three-and-a-half pounds in a size XL, this all-rubber kicker measures only 21-and-a-half inches overall, but its blade is broad and backed up with some substantial side rails. Where the rails are thickest, the blade seems pretty stiff; but as you move toward the tip, the design dynamics change, and you get some nice blade flex. Three sizes are available, and it comes with a bungee strap plus a limited-lifetime warranty. MSRP $160 INFO mares.com

Purpose-built for tec diving, the X-Tek Pure is configured for either single or double-tank diving. It includes a stainless-steel back plate and a doughnut wing with 30 pounds of lift for single-tank systems, or 60 pounds of lift for double-tank systems. The wing’s outer shells are made of 1,680-denier ballistic nylon. The inner bladder is made of 420-denier nylon for puncture resistance. X-Tek BC components are fully modular and compatible with all X-Tek systems. MSRP $775, complete single-tank system; $719 complete double tank system INFO scubapro.com

The technology of technical diving equipment is advancing at an exciting pace. Check out these five new products for your next advanced adventure.