These are fully functional Sparkfun weather stations that require no soldering to assemble. They are based around the very cheap BBC micro:bit processor. The weather station can read temperature, humidity, pressure as well as light level, soil moisture and temperature, wind direction and speed, and also has a rain gauge.
Building a weather station is a practical project that helps unlock an interest in science, and the micro:bit processor also forms the heart of many more such DIY projects.
In South Africa I see the kits and parts are all available at Communica for purchase at https://www.communica.co.za/products/spf-climate-kit-for-micro-bit.
See https://learn.sparkfun.com/tutorials/microclimate-kit-experiment-guide