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For mobile DP4 or mobile DP-IR leak survey you will need a Mobile Kit. The kit is mounted at a suitable point inside the vehicle. This unit may be powered by the vehicle electrical system by means of a cable/plug which is included in the mobile unit installation kit.
The sample system made up of two or more rubber cones hanging down from the bumper about 1½” – 2” from the pavement, to sample the atmosphere as close to the surface of the ground as possible. This system picks up a continuous sample at the surface of the ground at points selected by the driver, and conveys it by means of tygon tubing to the Gast pump.