... 13 bytes.Mode definition:1).mode 1: work modeWhen power on, ZCTR03A will be in this mode. In this mode, key2,3 ... the relevant command to command the sensor. 2).mode 2: edition modePressing key 5 around 3 second, ... ZCTR03A will be in this mode. In this mode, the part number and command can be ... After modification, key 2 will be out the modification mode.Key 3 is extra key. In part number ...