Photocoupler Octocoupler 12V Isolated module for NPN NO Proximity ABL Sensor

Description

Here is a pre-assembled12V isolated photocoupler(or adapter) that works with NPN normally-open proximity sensors. There is a switch on the board that you can turn a normally-open sensor to a normally-close sensor. It comes with two JST 2.54mm sockets(not soldered), or you can solder the sensors direct to the board. The module is designed to work with ABL(auto bed leveling) sensors.
Measure pins on the socket of z-stop, and one of pins should be positive(close to 5v). Connect the positive pin from z-stop to positive pin on the board, and ground to ground.
It comes with a adapter board, two JST 2.54mm sockets, 4 x M1.7 screws and a 12V DC power supply.
The last two pictures are for demonstration purpose only, so NO housing, sensor or controller board are included. The STL files can be downloaded here. https://www.thingiverse.com/thing:3335568
Package: 2 x 3-pin XH2.54 connectors, 1 x adapter board, 4 x M1.7x8 screws and 1 x 12V dc power supply
Shipping:
To keep the price low, all the packages are mailed via First Class with a tracking number. I process all orders within one business day. I am located about 1/2 miles from a small post office(open only Monday to Friday). Most of packages are dropped off at the Post Office every morning around 8AM Monday to Friday. In some case, not always, I make another trip to Post Office around 3PM.