A flexible liquid tight marker light that comprises a light source encapsulated by injection molding a light transmitting elastomeric polymer to form a protective casing which further includes an imbedded wiring harness electrically connected to said light source and imbedded structural members that protect the light source from excessive flexing and impacts. A circularity and cylindrical shape measuring device is configured such that a rotation axis of a rotary table is positioned on a leg that supports a base table or is positioned on a straight line that connects adjacent legs . The functionality provided by an embodiment of the present invention may be used in both Internet protocol -based telephones and residential gateways, and may be incorporated within the IP telephone chip used in such devices. A through slot is provided at a position near a centerline on a front surface of the lead wiring pad. It is proposed to suspend the alarm dynamically so long as the changes in the measured value in the variation over time of the at least one measuring sensor or in the variation over time of the at least one reference sensor differ by more than a definable limit within a definable time interval. The encapsulation material covers the semiconductor chip, the pads, the lead bars and the bonding wires.