Door Sensor for Shed

[TN_Oldman (Don)]

Understood, just providing options ideas. If you decide to try the Zigbee route. The person in this thread is making experimental devices. He will occasionally have some for sale (cheap).

Expandable Zigbee Repeater Solution (With Temperature, Humidity, Pressure and Light sensors)

Update 05/22/2020: After a long development, I have finally manufacture the sensor by the professional in quantity. For convenience, I open a listing in Ebay for those who are more comfortable to go that route. Update 12/2/2018, battery backup support. Here Update 8/19/2018. It is expandable now. See it here. Update 5/6/2018 here. This update incorporate temperature, humidity, pressure and light sensor. These sensors (Bosch BME280 and TEMT6000) are probably the most accurate sensor available. Update 6/19/2018 Xiaomi devices compatibility here. I have chance to pair a Xiaomi Aqara Motion Sensor. So far, I do not see any drop out on the Xiaomi devices. Original: I need for a Zigbee repeater. I am aware of existing solution here. I thought that it would be a fun project…

I have 2 of his sensors 1 long range and 1 normal. Both work like a champ. You just have to provide feedback and such for his future enhancements.