Details:

STAUFF Level Gauges SNA

Visual fluid level indication in hydraulic reservoirs with
maximum tank pressures not exceeding 2?bar / 29?PSI
Nominal Sizes and Designs
? 6 nominal sizes from 76?mm / 2.99?in to 305?mm / 12.00?in
? Display either undivided (SNA 076 ... 176) or subdivided
  by strut(s) into 2 (SNA 254) or 3 sections (SNA 305)

Media Compatibility
? Suitable for use with Mineral and Petroleum
  based hydraulic fluids (HL and HLP)

Materials
? Housing made of Steel St 12, black powder coating
? Sight tube and plugs made of Polyamide (PA)
? Sealings made of NBR (Buna-N®)
? Scale plate made of PVC

Special sight tube materials for improved UV or chemical
resistance and use with special media (such as
bio-degradable fluids, diesel oils, gasolines, etc.) as well
as special sealing materials, e.g. FPM (Viton®), and scale
plate materials, e.g. Aluminium, are available on request.

Technical Data
? IP 65 protection rating: Dust tight and protected
  against water jets (IP 67 on request)
? Operating temperature range:
  -30?°C ... +80?°C / -22?°F ... +176?°F