Ability One 7520 01 646 1095 Black Red, 0.8 mm Pen Tip, Retractable, Brass, Stylus On Top of The Eraser Cap, Black 3P639 Quick Connect Fittings Flow Outlet Quick Connect Fittings Flow Outlet Type Faucet Laminar Sensor Range 1 in to 14 in Power Source Battery Water Pressure Testing Gauge Primary Range Values 0 to 30 Gauge Primary Range Units psi Gauge Connection Type MNPT Basic Gauge Case Material Plastic Case Color Black Gauge Sensor Material Phosphor Bronze Smallest Graduation 5 psi Gauge Case Material Aluminum Basic Gauge Wetted Parts Brass Bronze Calibration Certificate Included No Gauge Filled With Glycerin Basic Gauge Socket Material Brass Gauge Primary Range Smallest Graduation 5 Gauge Lens Material Acrylic Pressure and Vacuum Gauge Type Pressure Gauge Graduations 5 psi Gauge Socket Material Brass Basic Gauge Sensor Material Bronze Gauge Case Color Black Gauge Accuracy + 0 Ballpoint Pen Pen Tip 0 8 mm Barrel Material Brass Barrel Color Black Pen Grip None Pen Cap Retractable Includes Pen Cushion No Pen Ink Color Black Red Series B3 Aviator Features Stylus Can Be Used with iPad Phone Tablet and GPS Includes Stylus On Top of The Eraser Cap