Aqua Master Tools E50 Pro EC & Temperature Meter GroWell Dudley you can safely use it

you can safely use it with any type of plant

make sure you always extract more air than you draw in - run intake fans at a slower speed (around 20% slower)

simply set your target temperature

Ideal for SCROG (Screen of Green) growing techniques

Lava-Lite No Gnats let you put a stop to this disastrous sequence of events in a 100% natural manner

Aqua Master Tools E50 Pro EC & Temperature Meter GroWell Dudley you can safely use itAccurate EC Meter with Temperature Compensation and Temperature Readings Get an accurate nutrient temperature & EC reading with this pen. With the automatic temperature compensation, your EC reading is always accurate. It comes fully calibrated and batteries are included. To save battery life, the pen will automatically shut off after 8 minutes. There's a low battery indicator and calibration indicator so you can ensure your pen is working correctly.