Abstract: A wireless child proximity monitoring and alarm system for use with child seats for vehicles includes a separable seat monitor for affixation to the seat's shoulder straps. The seat monitor has a first housing affixable to one of the shoulder straps and a second housing affixable to a second shoulder strap. The second housing has a transceiver for wireless communication and a microcontroller integrated with the transceiver. A micro switch is communicative with the microcontroller and is responsive to the proximity of the first housing. A connecting strap extends between the housings and is separable from at least one housing. A key fob for retention by a child caregiver has a fob case and a transceiver therein for wireless communication with the seat monitor transceiver. A microcontroller is integrated with the transceiver, and an alarm is selectively operable between a first silent sate and a second audible alarm generating state.