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Caisson Gauge
63mm Panel Mount Pressure Gauges




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8" & 8.5" Panel Mount GA Drawing
8" & 8.5% Surface Mount GA Drawing




8" & 8.5" ABS Plastic Case Pneumo Depth Gauge

The Ashford Instrumentation Ltd 8" and 8.5" diameter ABS plastic case multiport premium pneumo gauge is a precision pressure gauge used for diver depth monitoring or for measuring the pressure within a hyperbaric chamber. This Premium Pneumo Gauge features the ability to zero the pointer via an adjustment screw located on the front of the gauge as well as having an option for Full Safety Pattern design case to "S3" standard as defined in the European standard EN837-1. This means that this fully degreased gauge is suitable for use on breathing air and enriched oxygen applications and is ideal for commercial diving applications where oxygen or enriched air is being used. With an accuracy of 0.25% full scale, an easy to read mirror band dial and knife edge pointer, this premium pneumo gauge is built to the highest engineering standards. 

Features include an optional full safety pattern case with solid baffle wall and large blow out device that is a requirement for oxygen service applications in Europe according to the European Standard EN838-1, as well as on any gas, air or vapour application where the instrument scale range exceeds 25 Bar (250 Meters Sea Water). 

The Premium Pneumo Gauge is fully degreased as standard and the dial is marked with the crossed oil can symbol. Optionally the word OXYGEN can be added to the gauge where required. As sea water scales do not have an Internationally recognised value please note that all of our instruments are manufactured with a sea water specific gravity value of  1.025 which is marked on the dial. 

The gauge has the following features:

  • Black ABS Plastic Light Weight Case
  • Multi-Port Design - Lower Back of Bottom Entry Interchangeable 
  • Removeable & Changeable Coloured Front Flange For Easy Identification 
  • Reconfigured From Front Flange To Surface Mount Back Flange With Simple Case Switching Design
  • Easy Change Process Thread Connection 1/4" to 1/2"
  • Dimensionally Identical & Interchangeable With 3D Instruments Type 25 Design 
As standard this instrument is supplied as 3-hole front flange with lower back entry although a bottom entry port is also provided as standard. To change from back entry to bottom entry simply remove the thread adaptor and screw into the bottom port. Changing from 30hole front flange mount to 3-hole surface mount and quick and easy by the simple case switch design. Panel mounting bezels are optional available in a range colours including red, green, blue and yellow.