






Smart Temperature & EC Meter for Hydroponic Indoor Garden


Smart EC Meter for Hydroponics
- Real-Time Monitoring: Accurately track the EC (electrical conductivity) and temperature of your nutrient solution in your hydroponic reservoir.
- Instant Readings: View readings directly on the meter screen or through your phone.
- App Control: The app enables continuous reading, water shortage alerts, and optional oxygen pump control for enhanced oxygenation.
- Durable Probe: Designed for year-long immersion without oxidation, offering reliable readings anytime.
- Universal Compatibility: The probe is compatible with most hydroponic pods, transforming older non-smart hydroponic systems into smart ones.
- Optional Water Pump: Creates gentle water movement to increase oxygen levels for healthier roots and automatically cycles every 30 minutes to keep nutrients well-mixed.
- Extended Monitoring: Includes a backup probe, providing up to two years of continuous monitoring.
- EC Range: 0-6000 uS/cm (0 to 6 mS/cm). Accuracy: EC: ±2% Full Scale
- Temperature Range: 0- 100℃, accuracy: ±0.5℃



Will I Have a Better Harvest if I Use an EC Meter?
Yes, using an EC conductivity meter can improve your harvest. As plants absorb nutrients, the EC level in the water changes, so it’s important to adjust the nutrient solution to maintain optimal levels. Additionally, different plants require specific EC levels that universal nutrient solutions often cannot provide. By using an EC meter, you can monitor and adjust the nutrient concentration to perfectly suit each plant, leading to a healthier growth cycle and ultimately a better harvest.
Why do you need an EC Meter?
An EC meter is essential in hydroponics and similar systems because it measures the concentration of nutrients dissolved in the water, ensuring plants receive optimal levels for healthy growth. By monitoring and alerting to any changes, an EC meter helps prevent nutrient deficiencies or toxicity, improves plant health, and saves resources by minimizing nutrient waste. For growers, it allows real-time adjustments to nutrient and water quality, ensuring an efficient, well-balanced growing environment that’s crucial when growing without soil.
What are EC meter monitoring?
LetPot EC meter are monitoring two main value:
Nutrient Concentration: EC meters measure measures the concentration of soluble salts (like sodium, magnesium, and calcium ions), pH levels, essential nutrients (nitrogen, phosphorus, and potassium), trace elements (such as iron and zinc), organic matter, and moisture in soil or nutrient solutions. This helps farmers and gardeners monitor plant health, adjust nutrient levels, and maintain optimal growing conditions, reducing the risk of nutrient deficiencies or over-fertilization that can impact the environment.
Temperature: LetPot EC Meter can monitor the water temperature, which affects nutrient solubility and plant absorption.
You May Also Want to Ask
How Can I know the perfect EC Levels for differernt plants
You don’t need to guess the ideal EC conductivity levels for each plant. Simply select the plant type in the app, and the device will automatically alert you to when the EC level is higer or lower than the perfect ec range
Do I Need to Clean the Probes?
There is no need to clean the probes unless you plan to perform a calibration
Should I choose the pump version?
If you’re using a LetPot hydroponic system, there’s no need to purchase the pump version, as it already includes a pump for oxygenation and water circulation.
However, if you’re using a DIY hydroponic setup or a system from another brand without a built-in pump, you may want to choose our pump version.
What If I Use Universal Nutrient Proportions?
Using universal nutrient proportions will keep your plants healthy, but they may not reach their optimal growth and appearance. Specific nutrient ratios tailored to each plant type provide the best results.
This is gonna change the way you add water and nutrients
A smart EC and temperature meter for hydroponic systems
Transform your old non-smart hydroponic system into a smart one

Enhanced Probe
Our probe is electroplated with three different metals, allowing it to remain submerged in the nutrient solution for up to one year without removal.

Extended Monitoring
LetPot provides an additional probe as a backup, enabling an extra year of monitoring once the original probe reaches the end of its lifespan.

Real-Time Readings
With the probe continuously submerged in the water reservoir, you can access real-time readings on the meter screen or through the app at any time.

Smart EC Alert
No need to determine the ideal EC level for each plant. Simply select the plant type, and the device will alert you automatically.

Universal Pod Compatibility
The probe is designed to fit seamlessly into the pod basket, making it compatible with most desktop hydroponic systems.

Clear Reading Panel
The meter features a color-coded indicator for easy readability: red for high levels, blue for low, and green for normal
How to connect LetPot EC Meter with your Hydroponic Device

Step 1
Connect the USB cable and Type-C power cable to the EC meter. The device will power on automatically.

step 2
Insert the probe into one of the pods in your hydroponic system. Then, press and hold the "EC" button for 3 seconds to activate the device. The meter will begin collecting data as soon as it is powered on.

Adding Oxygen Pump (optional)
If you have the pump version, connect the pump cable during Step 1. For easier cable organization, you can use the same pod where the probe is placed and carefully thread the pump cable through the pod.
Step 1
Connect the USB cable and Type-C power cable to the EC meter. The device will power on automatically.
step 2
Insert the probe into one of the pods in your hydroponic system. Then, press and hold the "EC" button for 3 seconds to activate the device. The meter will begin collecting data as soon as it is powered on.
Adding Oxygen Pump (optional)
If you have the pump version, connect the pump cable during Step 1. For easier cable organization, you can use the same pod where the probe is placed and carefully thread the pump cable through the pod.




What's In the Box
- EC-Meter X 1 (The pump version includes three measurement indicators on the controller screen panel)
- Probes X 2
- Power Adapter X 1
- Oxygen Pump X 1 (Comes with the pump version)
Speficiation:
- EC Range: 0-6000 uS/cm (0 to 6 mS/cm).
- Accuracy: EC: ±2% Full Scale
- Temperature Range: 0- 100℃, accuracy: ±0.5℃
Shipping Policy
Shipping options vary by product and destination. See the rates and estimated transit times below.
Order processing
2–3 business days, subject to stock availability. Transit time is additional.
Free shipping
On orders over $29. Exclusions apply to certain heavy or oversized items and select destinations. Surcharges appear at checkout.
Shipping destinations
We ship to most countries in Europe and the Americas. We cannot deliver to:
- Remote areas and countries outside our delivery coverage.
- P.O. boxes; orders may be returned as undeliverable.
- APO/FPO/AE military addresses, Puerto Rico, or Guam.
Extra charges may apply during major transportation disruptions, conflict, or sanctions affecting delivery routes. Applicable surcharges are shown at checkout.
Rates & transit times
Orders ship from warehouses in the U.S., Canada, Australia, Hong Kong, or mainland China, depending on your location and stock availability.
All transit times are in business days and exclude order processing.
Growing systems & equipment
For hydroponic growing systems, watering systems, grow lights, and seed starters.
Swipe to view the full table.
| Destination | Ships from | Method | Fee | Transit (business days) |
|---|---|---|---|---|
| US / CA / AU / EU | Local | Standard | Over $29: FreeUnder $29: $6.90 | 4–10 |
| US / CA / AU / EU | Local | Expedited | $8.90 | 3–6 |
| Other countries | HK | Standard | Over $29: FreeUnder $29: $6.90 | 10–25 |
| Other countries | HK | Expedited | $8.90 | 6–15 |
US = United States · CA = Canada · AU = Australia · EU = European Union · HK = Hong Kong
Most accessories
Includes grow lights, plant food, circulation pumps, support rods, self-watering planters, and other accessories.
| Destination | Ships from | Method | Fee | Transit (business days) |
|---|---|---|---|---|
| Worldwide | HK | Standard | Over $29: FreeUnder $29: $6.90 | 15–30 |
| Worldwide | HK | Expedited | Over $29: FreeUnder $29: $8.90 | 10–25 |
U.S. accessory orders: Tariff-related exclusions may apply to free shipping. Final shipping costs are shown at checkout.
LED grow light with stand
For the LED grow light with stand.
| Destination | Ships from | Method | Fee | Transit (business days) |
|---|---|---|---|---|
| United States | Local | Standard | Free | 3–7 |
| Other countries | HK | Standard | $0–$9 | 15–30 |
| Other countries | HK | Expedited | $8–$25 | 10–15 |
Tracking & support
You’ll receive an order confirmation email, followed by a shipping confirmation email with your tracking number.
Use your email address and order number to track your order.
Need help? Contact service@letpot.com.
Cancellations & changes
Check your order details and shipping address before placing your order. Orders cannot be canceled or changed once submitted to our fulfillment center.
After that point, our Return Policy applies.
Refund Policy
At LetPot, we are committed to ensuring that our customers are fully satisfied with their purchases. However, we understand that there may be occasions when you need to return a product. This Refund Policy is designed to provide clear guidelines and procedures regarding returns and refunds. Please read this policy carefully to understand your options and how we can best assist you.
Refund Eligibility
All LetPot products purchased through our official website are covered by a 30-day refund guarantee. To qualify for a refund, the following conditions must be met:
- You must provide valid proof of purchase (such as an order number, purchase confirmation email, or invoice).
- The product must be unused, with all original tags intact, and returned in its original packaging and original condition as received.
- For returns not related to product quality issues, the customer is responsible for covering the return shipping costs.
Products purchased through authorized distributors, retail partners, or third-party websites are subject to their respective return and refund policies. We are unable to process refund requests for purchases made outside of the official LetPot website.
How to Request a Refund
To initiate a refund, please follow the steps below:
- Contact our customer service team at service@letpot.com and clearly state the reason for your return.
- Once your request is approved, we will provide you with a return shipping label along with detailed instructions on how and where to send the package.
Please note that returns sent without prior authorization will not be accepted.
Refund Processing Time and Method
After we receive and inspect your returned item, we will notify you of the status of your refund request. If approved, the refund will be automatically issued to your original payment method.
Please be aware that processing times may vary depending on your bank or credit card provider, and it may take additional time for the refund to appear in your account.
Contact Us
Customer satisfaction is always our top priority. We are dedicated to providing high-quality products and exceptional service. If you have any questions or concerns regarding this Refund Policy, please do not hesitate to contact us at service@letpot.com. Our customer support team is always ready to assist you and will do our best to ensure a positive shopping experience.
Thank you for choosing LetPot. We look forward to serving you again in the future.
Shipping options vary by product and destination. See the rates and estimated transit times below.
Order processing
2–3 business days, subject to stock availability. Transit time is additional.
Free shipping
On orders over $29. Exclusions apply to certain heavy or oversized items and select destinations. Surcharges appear at checkout.
Shipping destinations
We ship to most countries in Europe and the Americas. We cannot deliver to:
- Remote areas and countries outside our delivery coverage.
- P.O. boxes; orders may be returned as undeliverable.
- APO/FPO/AE military addresses, Puerto Rico, or Guam.
Extra charges may apply during major transportation disruptions, conflict, or sanctions affecting delivery routes. Applicable surcharges are shown at checkout.
Rates & transit times
Orders ship from warehouses in the U.S., Canada, Australia, Hong Kong, or mainland China, depending on your location and stock availability.
All transit times are in business days and exclude order processing.
Growing systems & equipment
For hydroponic growing systems, watering systems, grow lights, and seed starters.
Swipe to view the full table.
| Destination | Ships from | Method | Fee | Transit (business days) |
|---|---|---|---|---|
| US / CA / AU / EU | Local | Standard | Over $29: FreeUnder $29: $6.90 | 4–10 |
| US / CA / AU / EU | Local | Expedited | $8.90 | 3–6 |
| Other countries | HK | Standard | Over $29: FreeUnder $29: $6.90 | 10–25 |
| Other countries | HK | Expedited | $8.90 | 6–15 |
US = United States · CA = Canada · AU = Australia · EU = European Union · HK = Hong Kong
Most accessories
Includes grow lights, plant food, circulation pumps, support rods, self-watering planters, and other accessories.
| Destination | Ships from | Method | Fee | Transit (business days) |
|---|---|---|---|---|
| Worldwide | HK | Standard | Over $29: FreeUnder $29: $6.90 | 15–30 |
| Worldwide | HK | Expedited | Over $29: FreeUnder $29: $8.90 | 10–25 |
U.S. accessory orders: Tariff-related exclusions may apply to free shipping. Final shipping costs are shown at checkout.
LED grow light with stand
For the LED grow light with stand.
| Destination | Ships from | Method | Fee | Transit (business days) |
|---|---|---|---|---|
| United States | Local | Standard | Free | 3–7 |
| Other countries | HK | Standard | $0–$9 | 15–30 |
| Other countries | HK | Expedited | $8–$25 | 10–15 |
Tracking & support
You’ll receive an order confirmation email, followed by a shipping confirmation email with your tracking number.
Use your email address and order number to track your order.
Need help? Contact service@letpot.com.
Cancellations & changes
Check your order details and shipping address before placing your order. Orders cannot be canceled or changed once submitted to our fulfillment center.
After that point, our Return Policy applies.
At LetPot, we are committed to ensuring that our customers are fully satisfied with their purchases. However, we understand that there may be occasions when you need to return a product. This Refund Policy is designed to provide clear guidelines and procedures regarding returns and refunds. Please read this policy carefully to understand your options and how we can best assist you.
Refund Eligibility
All LetPot products purchased through our official website are covered by a 30-day refund guarantee. To qualify for a refund, the following conditions must be met:
- You must provide valid proof of purchase (such as an order number, purchase confirmation email, or invoice).
- The product must be unused, with all original tags intact, and returned in its original packaging and original condition as received.
- For returns not related to product quality issues, the customer is responsible for covering the return shipping costs.
Products purchased through authorized distributors, retail partners, or third-party websites are subject to their respective return and refund policies. We are unable to process refund requests for purchases made outside of the official LetPot website.
How to Request a Refund
To initiate a refund, please follow the steps below:
- Contact our customer service team at service@letpot.com and clearly state the reason for your return.
- Once your request is approved, we will provide you with a return shipping label along with detailed instructions on how and where to send the package.
Please note that returns sent without prior authorization will not be accepted.
Refund Processing Time and Method
After we receive and inspect your returned item, we will notify you of the status of your refund request. If approved, the refund will be automatically issued to your original payment method.
Please be aware that processing times may vary depending on your bank or credit card provider, and it may take additional time for the refund to appear in your account.
Contact Us
Customer satisfaction is always our top priority. We are dedicated to providing high-quality products and exceptional service. If you have any questions or concerns regarding this Refund Policy, please do not hesitate to contact us at service@letpot.com. Our customer support team is always ready to assist you and will do our best to ensure a positive shopping experience.
Thank you for choosing LetPot. We look forward to serving you again in the future.




