replaceing convetional rocker sw w/sensor

I am a nubee here and need to replace a 2 wire dc rocker sw with a 3 wire sensor ljm12a-az-nhs i have no idea that this will work but this is the place to ask. i have 2 wires pos and neg the current sw is always closed then when switched its open (no current) how or can i use the sensor with the 3 wires bl bk br

3 wire sensor will need 3 wires, try a 2 wire sensor

thanks

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