Custom Monotub Hygrometer/Thermometer
Custom Monotub Hygrometer/Thermometer is backordered and will ship as soon as it is back in stock.
Couldn't load pickup availability
Description
Description
The 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, including Max Yield Bins and North Spore.
- SamplingEvery 5 Sec
- RH Accuracy±2%
- Temp Range-58° to 158°F
- Humidity Range10–99%
- Size2.0″ / 2.6oz
Why Growers Choose This
- High accuracy — ±2% RH for dependable humidity tracking
- Fast updates — 5-second sampling for responsive monitoring
- Wide ranges — -58°F to 158°F 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 — 2.6oz (24g) for easy placement and mounting
- Universal compatibility — works with Grower's Select Monotubs and most standard monotubs, including Max Yield Bins and North Spore
What's Included
- 1× Custom Monotub Hygrometer & Thermometer digital gauge
- 1× LR44 lithium button battery (included, ready to use)
- 1× retail box with instructions
Specifications
| Specification | Detail |
|---|---|
| Temperature Range | -58°F to 158°F |
| Humidity Range | 10%–99% RH |
| Accuracy | ±2% relative humidity |
| Sampling Period | 5 seconds |
| Power | LR44 lithium button battery (included) |
| Mounting | Push-in fit, 2.0″ diameter |
How It's Used
- Push the gauge into one of the side holes on your monotub and hold the power button on the back for 3 seconds.
- Let the unit acclimate for a few minutes after placing it.
- Check readings during colonization and fruiting to track trends and stability over time.
- Use the data to refine misting, ventilation, and airflow for more consistent conditions.
Frequently Asked Questions
How do I install this in my monotub?
Push the gauge into one of the side holes on your monotub and hold the power button on the back for 3 seconds to turn it on. No tools or wiring required.
Will this fit my tub if it's not a Grower's Select monotub?
Yes. At 2.0″ in diameter, it's built for universal compatibility and fits most standard monotubs, including Max Yield Bins and North Spore.
How often does it update its readings?
Every 5 seconds, so you can catch environmental swings quickly and make small adjustments before conditions drift too far.
Does it come with a battery?
Yes, it ships with an LR44 lithium button battery already included and ready to use.
How is this different from your greenhouse hygrometer or mini hygrometer/thermometer?
This gauge is a push-in design made specifically for monotub side holes. Our Universal Greenhouse Hygrometer/Thermometer instead mounts through a cut hole with a twist-lock housing, made for greenhouse and Ecosphere-style panels. Our Mini Digital Hygrometer/Thermometer is a no-probe unit that clips to the side of any container rather than pushing into a hole.



