Euro Black 2" Oil Pressure Gauge - Dual 5 Bar Scale - Imperial or Metric GPSMAP 723xsv using the included tether is

using the included tether is strongly recommended

Hands-free navigation

The RAP-B-200-12U RAM® Composite Double Socket Swivel Arm is a B Size component designed to connect two RAM 1" ball components while adding a 360-degree center rotation point for extra adjustability

The attached diamond ball base connects to compatible RAM C Size double socket arms

Field data collection

Euro Black 2" Oil Pressure Gauge - Dual 5 Bar Scale - Imperial or Metric GPSMAP 723xsv using the included tether isA pressure gauge operates by sending a low amperage current through the gauge's meter to ground via a sending unit with variable resistance. The resistance of the sending units increase or decrease with the changes in pressure, temperature, etc As the sender's resistance varies, the amount of current allowed to flow through it to ground changes and the meter deflects, showing the change in pressure. Features: Anti scratch glass lens Perimeter lighted