Abstract: A data logger system is disclosed. Specific implementations include a flexible data logger system. The data logger system may include a flexible substrate and a radio-frequency identification (RFID) communications module coupled to the flexible substrate. The RFID communications module may include an antenna coupled with a RFID chip. The data logger system may also include a microprocessor and a memory module coupled to the flexible substrate, the microprocessor and the memory module electrically coupled with the RFID communications module. The data logger system may also include a temperature sensor coupled to the flexible substrate, the temperature sensor electrically coupled with the microprocessor and memory module, and a power source coupled to the flexible substrate, the power source electrically coupled with the microprocessor, the memory module, the temperature sensor, and the RFID communications module.

Abstract: An apparatus for interlocking horizontally adjacent first and second circuit breakers and preventing the circuit breakers from simultaneously being in a closed operating position. The circuit breakers each have a pivotable actuating handle movable between a closed position which is proximal to the other circuit breaker, and a open position which is distal to the other circuit breaker. A housing lies between the first and second circuit breakers and an interlock bar is slidably retained in the housing. In operation, the interlock bar is slidable between a first position where the interlock bar prevents the first circuit breaker handle from pivoting into the closed position and a second position where the interlock bar prevents the second circuit breaker handle from pivoting into the closed position.