best hygrometer for grow tent Custom Monotub Hygrometer/Thermometer

best hygrometer for grow tent Custom Monotub Hygrometer/ThermometerCustom Monotub Hygrometer & Thermometer The Midwest Grow Kits Custom Monotub Hygrometer & Thermometer is a compact, fast refresh environmental monitor built for monotub mushroom cultivation. It gives you clear, at a glance humidity and temperature readings so you can maintain stable fruiting conditions with less guessworkhelping you decide when to mist, adjust airflow, or fine tune your setup. With a quick 5 second sampling period, wide measurement

Custom Monotub Hygrometer & Thermometer

The Midwest Grow Kits Custom Monotub Hygrometer & Thermometer is a compact, fast-refresh environmental monitor built for monotub mushroom cultivation. It gives you clear, at-a-glance humidity and temperature readings so you can maintain stable fruiting conditions with less guesswork—helping you decide when to mist, adjust airflow, or fine-tune your setup.

With a quick 5-second sampling period, wide measurement ranges, and a high-accuracy ±2% RH sensor, this durable gauge is an easy upgrade for any Grower’s Select monotub (or any standard monotub) where consistency matters.

What’s Included

• 1× Custom Monotub Hygrometer & Thermometer digital gauge
• 1× LR44 lithium button battery (included – ready to use)
• 1x Retail Box with instructions

How It’s Used

1. Place or mount the gauge where it’s easy to see during daily checks (commonly on the inside front wall or lid area).
2. Allow the unit a few minutes to acclimate after placing it in your monotub.
3. Check readings during colonization and fruiting to track trends and stability over time.
4. Use the data to refine misting, ventilation, and airflow for more consistent conditions.

Placement tip: For best accuracy, position the gauge near substrate height and away from direct water droplets, pooling condensation, or heavy mist impact.

How It Works

This digital gauge uses an internal sensor to continuously measure relative humidity and ambient temperature inside your fruiting chamber. Readings update automatically every 5 seconds, giving you near real-time feedback as conditions change.

• Temperature Range: -58℉ to 158℉
• Humidity Range: 10%–99% RH
• Accuracy: ±2% relative humidity
• Sampling Period: 5 seconds
• Power: LR44 lithium button battery (included)

The fast refresh rate helps you spot environmental swings quickly, so you can make small adjustments before conditions drift too far—especially helpful during fruiting when consistency matters most.

Why Growers Choose This

• High Accuracy: ±2% RH for dependable humidity tracking
• Fast Updates: 5-second sampling for responsive monitoring
• Wide Ranges: -58℉ to 158℉ and 10%–99% RH coverage
• Ready to Use: Includes LR44 battery out of the box
• Compact Fit: 2.0″ diameter fits cleanly inside any monotub
• Lightweight: 2.6 oz (24 g) for easy placement and mounting
• Universal Compatibility: Works with Grower’s Select Monotubs and most standard monotubs like Max Yield Bins and North Spore. 

To start using, just push the hygrometer into one of the side holes and hold down the power button on the back for 3 seconds.