Gauges

OTG Technical Scuba Diving Inline Second Stage Regulator Adjustment Tool is used for fine tuning 2nd stages regulator. The tool has a built-in pressure gauge which allows the intermediate pressure (IP) of the first stage to be checked and adjusted if necessary. Then connect the tool inline between the 2nd stage regulator and the LP hose, allowing adjustments while the hose is pressurized. The flat slot drive of the tool will be inserted in to the 2nd stage to allow the orifice to be turned to find exactly the proper adjustment for the 2nd stage air inlet. It's fit for most modern designs 2nd stage regulator which is adjust by flat slot drive.

OTG Scuba Diving Computer Gauge to High Pressure Port Thread Adapter is for diver to install between the high pressure port / hose (7/16"-20-UNF) and dive computer port (3/8"-24-UNF). This adapter is made of Marine Chrome Plated Brass and is completed 40% Nitrox ready. Please note that this adapter must be used with HP air spool together. Our price is based on thread adapter only, not included air spool.

OTG Scuba Diving Pony Bottle Pressure Gauge (aka mini-spg, pony gauge, bottle gauge) installs directly into any standard first stage high pressure 7/16-inch port and does not require any hose, adapter or air-spool. This high quality gauge is small, compact and Nitrox ready. It is great for checking the tank pressure to indicate of "full", "partial" or "empty". Especially advantageous when used with safety stop bottles or you want to check your tank pressure when you are using hoseless transmission computers.

(Perfect for back-up air supplies, stage tanks, decompression tanks, pony bottles or side mount system.)

(**Not fit for Spare Air 1/2" port**)

OTG Technical Scuba Diving 6 inch (L) High Pressure Gauge Hose is an idea for Side Mount or Deco Tank setting. Our High Quality HP hose is 7/16 inch male for first stage and 7/16 inch female for SPG / Gauge. Length is measured from end to end of hose, including the fittings and their threads. All of our hoses are 40% Nitrox Ready.

OTG Technical Scuba Diving Din Cylinder Tank Pressure Checker is for the diver to check their tank pressure before the gear set-up. The reading range of this checker is from 0 - 5,000 psi (0 - 350 bars), and the diameter size of the pressure gauge is 2" (not included the rubber boot), it is easy to read. The pressure gauge is covered by rubber boot for much more security and the material of this checker is marine grade chrome plated brass. It has a bleed screw valve for easy to use and come with a Din thread plastic protector cap.

OTG Scuba Diving Compass Module for operation to depths of 80m / 260 Feet. It features a rotating 360-degree bezel with click stops and both direct and reciprocal index points. Large, easy-to-read numbers are displayed on the face and in the side window.

OTG Intermediate Pressure Gauge is for diver to diagnose problems of the 1st stage Regulator. It's often very helpful to know if the IP (Intermediate Pressure) is out-of-range. Just plugs the Gauge into any standard BC low pressure inflator hose, it is easy to use. Most of the modern scuba 1st stage regulator should have an intermediate pressure of about 130 to 142 psi.

OTG Scuba Diving High Pressure T End Air Spool with two tiny o-rings to mate the swivel connector on the high pressure hose to the fitting on the SPG gauge. We recommend replacing the air spool when replacing the hose or keep one spare with you while your diving trip.

OTG Scuba Diving Neoprene Dive Computer Protection Storage Multi Purpose Pouch is perfect for storing dive computer. The pouch size is 4.5 inch tall and 5.5 inch wide. Of course, it can also be used to keep and protect some small items such as GoPro, Camera lens, service kits, tools or any item you want to keep in this neoprene pouch.