WiFi and Bluetooth module kit w/out battery
https://www.eutronix-safety.eu/shop/sp-th240-0041-wifi-and-bluetooth-module-kit-w-out-battery-33351
https://www.eutronix-safety.eu/web/image/product.template/33351/image_1920?unique=382a04c
(0 review)
Compatible with TH240/DH240/TH220/DH220
