HumidiGrow - High-Humidity Resistant Greenhouse Thermometer-Hygrometer
SHIPPING INFORMATION
How do I track my order?
You will receive an order confirmation immediately after your purchase, then we will send you a tracking number for your order. You can also reach out to our customer support at support@jstonewell.com for any questions you may have.
How long does it take for the order to arrive?
Once shipped, your order should arrive within 3 to 8 days. We will send you an email confirmation as soon as your order ships to keep you updated. Feel free to email us to check on your order status at any time. We're happy to help
OUR GUARANTEE
If for any reason you are dissatisfied with your purchase, we'll make it right. We believe that our customers deserve the absolute best value without sacrificing superior quality, and your satisfaction is our #1 priority.
If it doesn't work for you or you just don't like, return it. Within 30 days of receipt, products purchased from JStonewell may be returned for any reason.
Keep Your Grow Space Conditions Easy To Read
Small changes in temperature or humidity can make a big difference in an indoor grow setup. This greenhouse thermometer-hygrometer gives you a clear, quick view of your environment so you can make adjustments with confidence.
High-Humidity Resistant Thermometer-Hygrometer
Designed for greenhouses, grow tents, and humid indoor spaces, this compact monitor tracks both temperature and humidity in real time. With fast updates, clear readings, and flexible placement options, it helps you stay on top of the conditions your plants rely on.

Why This One Stands Out
Unlike basic room monitors, this unit is built for high-humidity growing environments. It gives you accurate readings, updates every 10 seconds, and records 24-hour highs and lows so you can spot changes before they become a problem.
- Fast 10-second updates so you always see current conditions
- Accurate readings with ±1℉ temperature and ±2% RH humidity accuracy
- High-humidity resistant design made for grow tents and greenhouses
- 24-hour max/min records to track daily climate changes
- Simple comfort icons show Dry, Comfort, or Wet at a glance
- Magnetic back and stand for easy placement anywhere you need it
- Large LCD display with bold digits for quick, easy reading
Useful Details That Make Monitoring Easier
The built-in max/min memory shows the highest and lowest readings from the past 24 hours. This helps you understand what happens when lights turn on, vents run, or humidity rises overnight.
The face icons also make checking conditions faster. Instead of studying every number, you can quickly see whether the space is reading dry, comfortable, or wet.

Ideal For
- Indoor grow tents
- Greenhouses
- Seedling areas
- Propagation setups
- High-humidity plant rooms
- Any indoor space where temperature and humidity matter
Simple, Clear, And Easy To Place
Use the fold-out stand on a shelf or attach it to a metal surface with the magnetic back. The compact size makes it easy to position close to your plants without taking up valuable space.
Take The Guesswork Out Of Your Grow Space
Stay informed, react faster, and keep your indoor environment easier to manage. Add this high-humidity resistant thermometer-hygrometer to your setup today.