Ko Yihtong, kei roto i Henan, Haina, kua whakawhanakehia e ia he kaiwhakamaori i runga i te A100 me te Sensor A13 o ta maatau kamupene mo te tono mo te Ultrasonic Mate tono.
Ka whakamahia e te Yihtong te hangarau pūoko ultrasonic hei waahanga mo te rapu, ka whakawhiti i nga korero mo te whakawhitiwhiti korero a te NB-iot i te waahanga o te aukati.
