Merit's PPS Series Process Gauge has been manufactured to meet the rugged requirements of industrial applications. This solid-front, blow-out back safety case gauge comes standard with 316 SS internals, seamless bourdon tube, polycarbonate lens, pressure compensating bladder (to avoid pressure build up when liquid filled), and is designed to be "field fillable" with glycerine. All PPS Series Process Gauges have a phenolic case and has been carefully calibrated to meet an accuracy level of +-0.5% full scale. Standard features include a micrometer adjustable pointer and aluminum dial in psi only, psi/Bar dual scale or psi/kPa dual scale ranges and options include laminated safety glass lens, test certificate and maximum externally adjustable pointer.