¡iOpen Channel «¬¿ý¤U¸ü¡j
¡ETransducer°t¦X¦UºØÀ³¥Î,¦³¦hºØ«¬¦¡¨Ñ¿ï¾Ü¡E¥i´ú³Ìªø¶ZÂ÷20m¡E¥i³W¹ºPulse¿é¥X¡ETransducer¦Û§Ú¶EÂ_¤ÎTransducer¦Û°Ê²M¬~¥\¯à¡E§Ö³t¤ÏÀ³¤§·Å«×¸ÉÀv¡E¾A¥ÎDeviceNet, GoshHawk, Hart ªº³q°T¨ó©w¡E¥i§Q¥ÎGSM/CMDA §@»·¶Z³]©w