Contact Instruments' Unitized Mud Gauge (UMG) utilizes a bourdon tube for extreme accuracy and durability. The UMG is easily viewed from a distance. The UMG has two options for the sensor cup. Rubber for standard applications and VITON for more demanding applications. The sensor cups can be field replaced in most circumstances. The sub of the UMG is made from 17-4 PH Stainless for durability
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