美國Stonel限位開關
 STonEL 閥位回訊器分為6個系列
分別為Eclipsc,Visual Indicator,Quartz,SolaR,Onxy,Hawkeye
QX2HR02SRA-PTWS1,
QX2VR06SRA-PTNJ6,（QZE2VP5DSS）,
QX2VR02SRA,
QN2NC02SRA-PTBL1（QZP2NE2R）,
QZM2VE2R,
QZM2VE3RCPLH1,
AMI331HA02SRA-PTQL1,
QZP44E1R,
QZP4NE2R,
QZM2VE2R-PTLH2,
QG14C02SRA-PTZX1
QZP4HB2DSS-K,
ECG3313R,
ECG3313DS,
QZP2NE2R,
ECN4405R,
SEH90,
HK3077SG,
HK3077SR,
QUARTZSEH90,
ECN3302R EN33C02RA
ECN9602R EN96C02RA
ECG3323R EG33C23RA
ECG9623R EG96C23RA
ECN3302F EN33C02FA
ECN9602F EN96C02FA
ECG3323F EG33C23FA
ECG9623F EG96C23FA
QZE33C5R QN33D05SRA
QZE33E5R QX33R05SRA
QZE96C5R QN96D05SRA
QZE96E5R QX96R05SRA
QZI2JC2R QN2JC02SRA
QZM2VC2R QG2VC02SRA
QZM2VE2R QX2VE02SRA
QZM14C2R QG14C02SRA
QZM14E2R QX14E02SRA
QZP33C2R QN33C02SRA
QZP33E2R QX33E02SRA
QZP5OC2R QN5OC02SRA
QZP5OE2R QX5OE02SRA
SR2VS2LRS QG2VC02SRA
SR33S5S1 QN33C05S1A
ON3311S2SR AMI331HA02SRA

STONEL閥位回訊器分為6個系列
分別為Eclipsc,Visual Indicator,Quartz,SolaR,Onxy,HawkeyeQX2HR02SRA-PTWS1,
QX2VR06SRA-PTNJ6,(QZE2VP5DSS),QX2VR02SRA,QN2NC02SRA-PTBL1(QZP2NE2R),QZM2VE2R,
QZM2VE3RCPLH1,AMI331HA02SRA-PTQL1,QZP44E1R,QZP4NE2R,QZM2VE2R-PTLH2,
QG14C02SRA-PTZX1QZP4HB2DSS-K,ECG3313R,ECG3313DS,QZP2NE2R,ECN4405R,SEH90,HK3077SG,
HK3077SR,QUARTZSEH90,ECN3302R EN33C02RAECN9602R EN96C02RAECG3323R，
EG33C23RAECG9623R EG96C23RAECN3302 EN33C02FAECN9602F EN96C02FAECG3323F，
EG33C23FAECG9623F EG96C23FAQZE33C5R ECN3302R EN33C02RA
ECN9602R EN96C02RA ECG3323R EG33C23RA ECG9623R EG96C23RA
ECN3302F EN33C02FA ECN9602F EN96C02FAECG3323F EG33C23FA
ECG9623F EG96C23FA QZE33C5R QN33D05SRA QZE33E5R QX33R05SRA
QZE96C5R QN96D05SRA QZE96E5R QX96R05SRA QZI2JC2R QN2JC02SRA
QZM2VC2R QG2VC02SRA QZM2VE2R QX2VE02SRA QZM14C2R QG14C02SRA
QZM14E2R QX14E02SRA QZP33C2R QN33C02SRA QZP33E2R QX33E02SRA
QZP5OC2R QN5OC02SRAQZP5OE2R QX5OE02SRA QN33D05SRAQZE33E5R QX33R05SRAQZE96C5R，
QN96D05SRAQZE96E5R，QX96R05SRAQZI2JC2R QN2JC02SRAQZM2VC2R QG2VC02SRAQZM2VE2R 
QX2VE02SRAQZM14C2R QG14C02SRAQZM14E2R QX14E02SRAQZP33C2 QN33C02SRAQZP33E2R 
QX33E02SRAQZP5OC2R QN5OC02SRAQZP5OE2R QX5OE02SRASR2VS2LRS QG2VC02SRASR33S5S1
QN33C05S1AON3311S2SR 、 AMI331HA02SRAON962HS2SR 、AMI961DA02SRA or AMI961BA02SRACASHCO 
BB4-7S17-7FC00000A,QZP4HE2R,QN2NC02SRA-PTKR1,MODEL:41-301M361 MR442,閥座 195221 SEAT-VAI VE:25 "IDX3.38" OD閥板 195215 DISC-DUALSEAT 2875X1.867閥座 190234 
SEAT-VAL VL 1.5SWGDISCSW-010302UK ,SW-040302UKXNNN-0210, XNNN-02T0,XNNN-02A0ECN,ECG,QZP,QZI,QZM,QZE,HK,系列