Mercury-In-Steel Thermometers without Thermowells - Local Mounting comprises of a sensing bulb, a micro-bore capillary, evacuation & filling capillary, a coiled bourdon & a bi-metal link for case compensation. Pyro Electric Instruments Goa Pvt. Ltd. Manufactures Mercury-In-Steel Thermometers without Thermowells - Local Mounting. Pyro Electric Instruments Goa Pvt. Ltd. Is an ISO 9001:2000 and 9002 awarded company that also manufactures of Temperature & Pressure Gauges, Catering largely to process control applications in various industries. Mercury-In-Steel Thermometers without Thermowells - Local Mounting is available with weatherproof casing. The movement of the bourdon is multiplied by a sector pinion movement & a micrometer screw pointer fixed on the movement & a micrometer screw pointer fixed on the movement shaft rotates the pointer over the plane of a calibrated dial.