Check the listing for details. Dive Rite Nitek Q Techical Diving Computer Nitrox. Condition: Used. Listed at 890.00 USD. DescriptionUsing the well established Buhlman ZHL-16 algorithm along with a default gradient factor of 30/75, the NiTek Q Trimix Computer has three pre-set GF settings to choose from that allow for deep stops or shallow stops, plus a custom gradient factor for those divers trained in custom gradients. Housed in a mil-spec aluminum case with mineral glass viewing port and an easy to read yellow OLED display, the NiTek Q is a wrist-mounted computer that carries the tiniest of footprints, yet boldly displays dive data on a huge screen. A rechargable 3.7v lithium polymer battery is recharged using a standard mini-USB cable (provided), and can be recharged via wall outlet, desktop [continued] computer, or car charger. Intuitive, push button navigation thru options makes programming and diving the NiTek Q easy for divers of all levels. Made in the USA.FunctionalityStandard 7-gas Trimix (8%-99% O2, 0-92% He)Optional CCR mode with fixed PO2 set-pointsBuhlman ZHL-16 algorithm with three preset gradient factors of 30/75, 40/100 or 75/95Visual alarmsPre-dive planner gives NDL for selected gasesDive loggingImperial/Metric settingsFreshwater / Saltwater settingsLithium polymer 3.7V rechargeable batteryHardware SpecsYellow OLED DisplayLarge, 24-point fontVisible in complete darknessScratch-resistant mineral glassUser-rechargeable 3.7v lithium polymer batteryRated to a depth of 150m (492 ft)Dimensions: 3.5 x 2.3 x 1 in (8.9 x 5.7 x 2.5 cm)8.4oz (238 g)CE certification pending (EN13319, EN 61000)IncludesSelf donning ladder lock wrist strapUSB Cable120V US AC chargerOptional AccessoriesCarrying bagBungee wrist mountScreen protectorReplacement USB cap/o-ring service kitReplacement push button kit