This is a Honeywell 3-pin Micro Switch with hall effect sensor assembly. Its part numbers are 1589292 and A02297. Its dimensions are 1.1"(30mm) x 0.63"(16mm) x 0.40"(10mm). This device is a hall effect sensor and is activated It is new and has never been used. It was originally bulk packaged and we have repackaged it for individual sale. 

Specifications:

• Manufacturer: Honeywell
• Part Number(s): A02297, 1589292
• Pins: 3-Pin
• Pin 1: GND / Minus-
• Pin 2: Voltage
• Pin 3: Output