Grow Tools Temperature & Humidity Meter

Know exactly what's happening inside your tent

The Grow Tools Temperature and Humidity Meter is a digital gauge that reads temperature and relative humidity inside your grow tent or room, giving you the hard numbers you need to keep conditions right for whatever stage your plants are at. It sits on a shelf or hangs at canopy height and runs on battery, so you can place it anywhere without trailing cables.

Not sure your tent's climate is actually helping your plants?

Guessing at temperature and humidity is a common cause of stretched plants, slow growth and mould creeping into dense flower - by the time it shows in the canopy, conditions have usually been off for days. A dedicated meter removes the guesswork so you react to a reading before it becomes a problem.

Key Benefits

• Digital LCD display for clear, at-a-glance temperature and humidity
• Compact design that stands on a shelf or hangs inside the tent
• Battery powered for placement anywhere, no trailing cables
• Dials in your climate to reduce stretch, mould risk and slow growth

How to Use

• Place the meter at canopy height, away from direct light and fan airflow, for a true reading
• Check it daily and adjust extraction, intake and humidity control to hold your targets
• Aim for roughly 22-26C in veg and flower, easing night temps a little lower
• Target humidity around 70-80% RH in propagation, tapering below 50% RH in late bloom
• Move the meter up as the canopy grows to keep readings representative