You are likely need to contact customer support for this .. please refer to this thread Request for Firmware v2.x for OS1 Sensor (S/N: 992016000251) - #5 by yggdrasil for more details
You are likely need to contact customer support for this .. please refer to this thread Request for Firmware v2.x for OS1 Sensor (S/N: 992016000251) - #5 by yggdrasil for more details