I know someone who needs this SO bad:
Put the EasyBloom Plant Sensor anywhere, inside or outside, where you want to grow a plant or have a plant you want advice on. The Plant Sensor will measure sunlight, temperature, water drainage and fertilizer (with subscription).$50 at Amazon.
Plug the EasyBloom Plant Sensor Plus into the USB port of your PC or Mac. EasyBloom.com adjusts the raw sensor data with your local growing zones, climate, and hourly weather.
From our 6,000+ plant library, we'll recommend what plants are best for your spot and how to care for them. If you already have a plant, the Plant Doctor will tell you what to fix (and what you're doing right). Use again and again, inside and outside.
Via.
