Hygrometers
Thermometers and hygrometers for grow tents: the ThermoPro TP358 Bluetooth thermo-hygrometer, a digital hygrometer with min and max memory, the AirComfort temperature and humidity sensor, a thermo-hygrometer with CO2 monitor and the Vivosun GrowCam C4 camera.
In StockGarden HighPro
£8.96
In StockHighlight
Thermo/Hygrometer With CO2 Monitor
£22.46
In StockThermoPro
ThermoPro TP358 Bluetooth Thermo Hygrometer
£17.96
Pre-OrderiBebot
AirComfort Temp & Humidity Sensor
£26.96
Pre-OrderVivosun
£50.36
About Hygrometers
Why measure
Temperature and humidity together decide how fast plants drink and grow and whether mould gets a hold. A meter with a min and max memory shows what happens at night when you're not there, which is where most problems start. Aim for 22 to 28°C with the lights on, no more than a 10°C drop at night, and the humidity range for the stage of growth.
Where to put it
At canopy height, shaded from the lamp, halfway into the tent. The ThermoPro TP358 sends its readings to a phone by Bluetooth and keeps a history; the AirComfort sensor does the same for AC Infinity controllers. The GrowCam lets you watch the room from anywhere.
Growers' Guides
- VPD Chart: What Vapour Pressure Deficit Means for Your PlantsVPD explained in plain terms, with a chart by temperature and humidity, the ranges to aim for at each stage, and how to measure and control it.
- Red Spider Mite: How to Spot It and Get Rid of Spider MitesPale speckled leaves and fine webbing? How to spot red spider mite, why it spreads so fast in warm rooms, and how to get rid of spider mites.
- The Importance of Airflow, Temperature & Humidity in a Grow RoomCreating the perfect environment inside your grow room isn’t just a matter of comfort for your plants - it’s the foundation of healthy growth, efficient…