Features: The reed switch contains a pair (or more) of magnetizable, flexible, metal reeds whose end portions are separated by a small gap when the switch is open. The reeds are hermetically sealed in opposite ends of a tubular glass envelope. The reed switch's application is to detect the opening of a door, when used as a proximity switch for a burglar alarm. Specifications: Model: MKA-10110 Color: Green, Gold Tone Switching Voltage: DC100V Min. Breakdown Voltage: DC 220V Max. Switching Current: 0.5A Max. Carry Current: 1.0A Max. Initial Contact Resistance: 100m Min. Insulation Resistance: 1010 Operate Time: 0.4ms Bounce Time: 0.4ms Release Time: 0.1ms Resonant Frequency: 4000Hz Max. Operating Frequency: 500Hz Pull in Value : 10-15AT Min. Drop-out Value: 5AT Max. Contact Capacitance: 0.7pF Test Coil Resistance: 870 Glass Tube Size: Approx. 1.7 x 9.8mm/0.067x0.385"(DxL) Lead Terminal Size: Approx. 0.3 x 16mm/0.011x 0.63"(DxL)(Each Side) Total Length: Approx. 41.6mm/1.639" Quantity: 10 Pcs/1 Set Note: Please allow 1-3mm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! No Retail Package Package Contents: 10 x Reed Switch