【Extech】41233J,校验设备 CALIBRATOR TYPE J C
【Extech】41233J-NIST,校验设备 CALIBRATOR WITH NIST
【Extech】41233J-P,校验设备 CALIBRATOR TYPE J
【Extech】41233J-S,校验设备 CALIBRATOR TYPE J
【Extech】41233K,校验设备 CALIBRATOR TYPE K C
【Extech】41233K-NIST,校验设备 CALIBRATOR W/ NIST
【Extech】41233K-P,校验设备 CALIBRATOR TYPE K
【Extech】41233K-S,校验设备 CALIBRATOR TYPE K
