5 x Door Window Normal Closed Contact Security Safety Alarm Magnetic Reed Switch Sets Curtain Accessories Measures current range of AC

Measures current range of AC 0-500V with accuracy of Class 1

5-1mm larger than the diameter of the female rod

Magnetic hex nut driver

As it is capacitive type proximity switch

Featured with round cap cover

5 x Door Window Normal Closed Contact Security Safety Alarm Magnetic Reed Switch Sets Curtain Accessories Measures current range of ACNC means Normally Closed: When the magnet together, the circuit is conductive( light on ); when the magnet separate, the circuit is not conductive ( light off ). When make order,pls check carefully! The Reed Switch is an electrical switch operated by an applied magnetic field. It was invented at Bell Telephone Laboratories in 1936 by W. B. Ellwood. It consists of a pair of contacts on ferrous metal reeds in a hermetically sealed glass envelope. There