Digital Pressure Gauge Oil Filled The W6 Series has an improved digital readout utilizing an extra-large five-digit display. The W6 Series melt pressure gauge provides reliable, maintenance-free, localized pressure indication. The small capillary tube filled with a special medium isolates the gauge housing from potential thermal damage. • 1/2-20 UNF thread standard, M18x1.5 also available • One alarm standard • 4-20 mA retransmission standard • 17-7 PH corrugated diaphragm with TiN (Titanium Nitride) coating standard • Oil-fill is FDA approved — meets requirements CFR172.3620 and CFR172.878 • 2 times overload capacity (ranges < 700 bar [10000 psi]) • Better than ±0.50% accuracy