Hydro Digital Premium Thermometer - Optithermo Outdoor Temperature and Humidity Sensor
This hydrometer thermometer allows you to quickly check the climate inside your grow box. It has a large screen, which allows it to display the temperature and humidity level at the same time.
It also allows recording the minimum and maximum temperature and humidity.

Premium Hydro Digital Thermometer with External Probe - Temperature and Humidity
🌱 An essential tool for precise control of your crops
Optimize the growth of your plants with the Hydro Digital Premium Thermometer - Optithermo . Specially designed for growing rooms, this device combines precision and ease of use. Thanks to its large screen, it simultaneously displays the temperature and humidity level, two essential factors for the optimal development of your crops.
The highlights of the Premium Hydro Digital Thermometer
Large screen for easy reading
The large digital display offers perfect readability, even from a distance. You can quickly view essential climate data.Practical outdoor probe
Its external probe allows to measure temperature and humidity in different areas, guaranteeing a complete analysis of the environment.Memory of maximum and minimum values
Record temperature and humidity variations to best adjust growing conditions.Compact and discreet
With its sleek design, this device fits easily into your installations without taking up space.Robust and reliable
Made with quality materials, it withstands the specific conditions of growing rooms.
Technical characteristics
- Type : Digital thermometer and hygrometer
- Display : temperature and humidity simultaneously
- External probe : for precise and localized measurements
- Memory : Records maximum and minimum values
- Power supply : batteries (not included)
How to use it effectively
- Position the device : Install it at plant height for an accurate measurement.
- Position the probe : Use the external probe to monitor specific areas of the box.
- Analyze data : View current temperatures and humidity levels as well as maximum and minimum values to adjust your equipment (ventilation, heating, etc.).
- Maintain regularly : Check the cleanliness of the screen and probe to ensure optimal performance.
Expert Grower's Opinion
"The Optithermo has become a key tool in my grow room. Thanks to its external probe and its memory of maximum and minimum values, I can adjust the conditions with complete peace of mind. It's simple, precise, and perfectly adapted to the needs of growers."
Frequently Asked Questions
1. Is this thermometer suitable for large grow rooms?
Yes, its external probe allows you to measure different areas, ideal for monitoring large spaces.
2. Can I use it in a greenhouse?
Absolutely, it is perfectly suited for greenhouses, grow boxes and even indoor environments.
3. How long is the probe cable?
The probe cable is typically between 1 and 1.5 meters, providing good range for monitoring.
4. Are specific batteries required?
The Premium Hydro Digital Thermometer operates on standard batteries (usually AAA, not included).
5. Is it waterproof?
The main unit is not waterproof. However, the probe is designed to withstand moderate wet conditions.
Guarantee a perfect climate for your plants with the Premium Hydro Digital Thermometer - Optithermo , the essential tool for controlled and efficient cultivation. 🌿

TerraLED Shipping and Returns
When will my order be shipped?
You validate your order between:
MON | MAR | SEA | GAME | FRI | SAT | SUN | |
midnight - 3 p.m. | Ships same day | Shipped Monday | |||||
3 p.m. - midnight | Shipped next day | Shipped Monday |
Which country do you ship to?
You can order on the website for delivery to the following countries: Germany, Austria, Belgium, Canada, Denmark, Spain, France, Finland, Greece, Guadeloupe, French Guiana, Italy, Ireland, Luxembourg, Martinique, New Caledonia, New Zealand, Netherlands, Portugal, Reunion, United Kingdom, Sweden and Switzerland.
The countries below benefit from FREE delivery by Chronopost international Express from 100€!
Germany, Austria, Belgium, Spain, Denmark, Finland, Greece, Italy, Ireland, Luxembourg, Netherlands, Portugal, United Kingdom, Sweden.
If you cannot find your country, please contact us and we will inform you about the possibility of delivery.

Once your order has been shipped, delivery times depend on the shipping method you have chosen.
Our deliveries in France are provided by our partner Chronopost. Your products are carefully packed in appropriately sized packaging and you benefit from online tracking.
Delivery by Chronopost is the fastest . Delivery by Chronopost is only possible for delivery of products in stock , in mainland France (excluding Corsica).
A parcel number is sent by email as soon as the parcel is shipped so that you can track its progress . This parcel number is also permanently available in your customer account.
The package is delivered against signature . In case of absence, the delivery person will contact you by the telephone number provided at the time of ordering. In case of unavailability, the package will be left at the nearest relay point.
You have 10 days to collect the package . If you do not collect the package within 10 days, the package is automatically returned to us.
The delivery time is one day :
When will my order be delivered by Chronopost EXPRESS?
Please note that delivery by Chronopost Express 24H indicates a NON-GUARANTEED delivery time. Chronopost does not offer any refund if there is a delivery delay.
If you want to get a guaranteed delivery time, we offer you a UPS SAVER EXPRESS 24H offer at €39 when you order. If you do not have your product within 24 hours from Monday to Friday, we will refund the delivery.
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