H7EC-N-P,转速计和计数器 SELF-PWRD TTLZR PC
H7EC-NV,COUNT TOTALIZER DC IN 30HZ/1KHZ
H7EC-NV-B,COUNTER TOTALIZER 1KHZ DC INPUT
H7EC-NV-BH,COUNTER TOTALIZER DC W/BACKLIGHT
H7EC-NV-H,COUNT TOTALIZR 7SEG LCD BACKLGHT
H7ER-N,COUNTER TACH LCD 4-DIGIT LCD
H7ER-N-B,COUNTER TACH NO VOLT 60PPR BLK
H7ER-NV,COUNT TACH LCD 4DIGT LCD PNP/NPN
