Stevenson screen for Xiaomi Aqara temperature, humidity and pressure sensor (WSDCGQ11LM). Also suitable for Sonoff SNZB-02.
Designed with mounting and screw holes. Holder and spacer have 2x 5.2 mm holes. The upper has 2x 4.5mm with larger walls around to increase strength. The surface is flat with no visible holes.
In addition to this product, 2x 5x60 screws must be used to set up the screen (not included).