FAQ (-) Sensors and Sensor Systems Facet FAQ Search List - Product Categories L1 Temperature Protection Devices Temperature Sensors (NTC) Humidity Sensors Angle Sensors (-) Ultrasonic Sensors Facet FAQ Search List - Product Categories L2 Ultrasonic ToF (Time-of-Flight) Sensors Ultrasonic Sensor Disks Facet FAQ Search List - Product Categories L3 Products Measurement Operational descriptions by objective (-) Structure, material Others Facet FAQ Search List - FAQ Category 1 Product Categories L1 Product CategoriesCapacitorsInductors (Coils)EMC ComponentsRF ComponentsVoltage / Current / Temperature Protection DevicesSensors and Sensor SystemsCeramic Switching / Heating, Piezo Components, Contactors, Buzzers and MicrophonesTransformersFerrites and AccessoriesPower SuppliesMagnets Product Categories L2 Product Categories Product Categories L3 Product Categories FAQ Category CategoriesProductsMeasurementElectrical CharacteristicsEnvironmental CompatibilityOperation manualOperational descriptions by objectiveProduct Quality and Service LifeReliabilityStructure, materialTechnical support toolsTroubleshootingOthersAbout myTDK Structure, material Q. Which kind of contacting technology can be used? Ultrasonic Sensor Disks Q. What is the housing made of? Ultrasonic Sensor Disks/Ultrasonic ToF (Time-of-Flight) Sensors