For tamper protection of heat cost allocation devices, C&K offers a number of options. Where longer stroke is required, the HDS and HDT series switches are ideal. Both offer total travel over 1mm in a compact SMT package. If a sealed switch is needed, the KSC4D can accommodate up to 0.6mm total travel in an IP67 sealed package. If higher current or a snap switch solution is required, the ZMA series is rated up to 3A in a compact footprint with various options for actuators and termination.