I bought about 50 MCT-340 E Visonic Door/Window Sensors from MyDigitalDiscount (https://www.mydigitaldiscount.com/visonic-window-or-door-sensor-for-samsung-smartthings-mct-340e/). I followed the instructions and added the device handler before pairing. I got the first 40 or so sensors added and working without any problems. Following the same steps I did for the others, I tried adding the next sensor. However, I couldn’t get the SmartThings app to recognize or add the next sensor. I’ve tried resetting the sensor, using a different device type, and also pairing a completely different sensor (thinking one might be defective); however, I’ve had no luck in getting any of the remaining sensors to work.
Similarly, I bought 2 Bosch ISW-ZPR1-WP13 Motion Sensors. They also require a new device handler before pairing. I completed this under the correct location/hub in the SmartThings IDE. However, I cannot get my SmartThigns app to recognize the devices when attempting to pair.
I can add the devices manually through the IDE website. If I do this, then the SmartThings app “finds” the device when I go to the pairing menu. However, once paired, the sensor does not work properly and is not reporting on any events or statuses.
I’d be interested if you or anyone else has had or found a solution.