Remote Reading Expansion Thermometer Filled System with Bourdon Tube Element Ideal for applications with restrictive accessibility or where it is advantageous to have the thermometer remote from the sensing pocket such as on vibrating equipment Dual Scale Acrylic Window Supplied with a surface mounting back flange Available with a 1.5m or 5m length capillary (stock no 431-5671) Complies with BS 5235: 1975; DIN 16203; DIN 16205 1/2 in. BSP Screw on Brass 50mm Pocket