Noram SMC PTE-FCE External Timer Start Option - Designed tobe used with the PTE-100-C,thus giving the equipment a wider application in measuringtimes.This option is mounted in a small, lightweight box,designed to be transported inside the lid of the PTE-100-C. It is connected directly to the monitor input taps of the equipment.The voltage supply can be by the main voltage supply or by connecting to the 110V 0.3A tap (Out 4) of the PTE-100-C.