Spider Farmer GGS Sensor Pro Kits 5-in-1 for Indoor Growing Env. Precision | New Version, Real-time Monitoring PPFD/VPD/Temp/Humid/CO2, High Accuracy Plant Multi-sensor, for Grow Tent Rooms Greenhouse

lol I didn’t write wrong 😑 wym ? It’s literally a gauge to read the ppfd and vpd it’s red and like 30$ it’s a photon gauge lemme find it but there is a nice one spider farmer makes it’s on sale rn https://a.co/d/03jycDi6