The switch is a reed. LJ3RG4024-3015EXLJ18A3-5-Z / BY PNP normally open 5mmLJ30A3-10-Z / BY DC24VYG-D70PK 24VE80-D40PK 24VLJ100A4-50-Z / B1Y DC24VE8-D15PKFGLJ12A3-4-Z / AX NPN (NC) 200mA DC 6 ~ 30VLJ30A3-15-Z / CYLJ3RG4024-OJBOOLJ48A3-25-Z / EXLJIFL15-30L-10 / 01YCBEWS-515-5A-0BEWS-515-5A-1C110B-M30-D201X DC24V wire LJ18A3-8-J / E2 AC90-250VLJ30A3- 10Z / EY 10-30VYHT3-D50L1 DC10-30VCJK-5CLJ3R4041-6KG01WKG-4H-LEDWKG-4D-LEDLJ12A3-4-Z / EX DC10-36V Shenyang on China electric production CJK-1Z / T, CKG-1Z, CKG- 1C, CKG-2Z, CKG-2C, CKG-3Z, CKG-3C, CJK-1Z / T, CKG-1Z, CKG-1C, CKG-2Z, CKG-2C, CJK-1Z / T, CKG-1Z, CKG-1C, CKG-2Z, CKG-2C, CKG-3Z, CKG-3C, CJK-3Z-K, CJK-32-K / T, CJK-32-K / T, CJK-3Z / K / T, CJK-32 / K / T high temperature limit switch, CJK-3Z-K / T, CJK-32-K / T magnetic switch, CJK-1C, CJK-2C, CJK-3C, CJK-4C, CJK-5C When, CJK-1Z, CJK-1C / T Schneider magnetic switch, CJK-1C / D, CJK-1T, CJK-2Z, CJK-3Z, CJK-4Z, CJK-5Z switch measurement, the switch K closed, then gradually close the magnet reed switch, when the distance is constant (with magnet size related), pull reed reeds turned on, LED lights. Then gradually remove the magnet reed switch, magnetic field disappeared, reed restitution, the circuit is disconnected, the LED goes out. Back and forth several times, in line with the above, the measured reed is good. If no magnet magnetic switch manufacturers, available external magnetic speaker magnet back instead. If you close the switch K after detecting magnetic switch, light-emitting diodes on the light, or when the magnet is removed, the LED is lit, and when the magnet close, the light emitting diode does not light, etc., it shows that the measured reed has lost its switching action can no longer detect the magnetic switch, Onishi electronic magnetic switch on the people by the Shenyang Electric people Electric Co. Shenyang Electric Co. on people (www.zsmsy.com) (www.smdqee.com) strong, credible, and other industries in other Shenyang, Liaoning province has accumulated a large number of loyal customers. The company better work attitude and constantly improve the innovative ideas will lead sink into the brilliant electric and you work for a better future!