Remote control transmitter and duplicator, 433.920 MHz.
Easily copy almost all fixed-code remote controls in the market.

USB to RS485 adapter / converter with additional GND and +5V output.

DDS238-1 ZN/S Power Energy meter, bidirectional, with ModBus and 1 S0 (pulsed) output, 45A, single phase

Minimal KIT to start home automation system that measure power/energy consumption/production, display charts, control connected devices like air conditioning systems.

Modbus energy meter:
230V 50Hz 100A max
Modbus protocol (RS485)