-11%
Bluelab - OnePen Original price was: £234.99.£194.99Current price is: £194.99. Inc VAT
Bluelab - Temperature Probe Original price was: £59.99.£44.99Current price is: £44.99. Inc VAT
Bluelab – EC Pen
Original price was: £89.99.£79.99Current price is: £79.99. Inc VAT
The Bluelab EC Pen is a waterproof handheld meter that accurately measures EC, PPM, and temperature, helping you maintain perfect nutrient strength and root conditions.
Description
Bluelab – EC Pen
The Bluelab EC Pen is the essential handheld tool for growers who want fast, accurate readings of their nutrient strength and solution temperature. Because it is lightweight, waterproof, and incredibly reliable, this meter ensures your plants always receive the correct amount of food for healthy, vigorous growth.
EC and PPM readings help prevent overfeeding or underfeeding, which are some of the most common causes of poor plant performance. Additionally, by checking conductivity daily, you can avoid nutrient imbalance, maintain consistent feeding, and protect your plants from unnecessary stress. For best results, completely refresh your reservoir every 7 days and top up nutrient levels between changes.
With selectable measurement units, backlit LCD, Hold Reading function, optional calibration, and automatic temperature compensation, the Bluelab Conductivity Pen is designed for growers who want accurate results with zero hassle. Pair it with the Bluelab pH Pen for complete nutrient and pH management.
Key Benefits:
Accurately measures conductivity (EC, CF, PPM) and solution temperature
Helps prevent nutrient over-dilution or over-concentration
Fully waterproof design for reliable daily use
Selectable units for both EC/PPM and °C/°F
Automatic temperature compensation for precise readings
Backlit LCD for low-light environments
Optional calibration with successful calibration indicator
Auto-off and low battery warning to extend battery life
Includes 1 x AAA alkaline battery
1-year warranty
Instructions for Use:
Remove the cap and turn on the pen.
Submerge the probe into your nutrient solution.
Wait for the reading to stabilise; use the Hold function if needed.
Monitor EC/PPM daily to maintain consistent nutrient levels.
Replace your reservoir solution every 7 days and top up between changes.
Aim for a solution temperature of 18–22°C for optimal root health.
Rinse the probe after each use and store dry with the cap on.
Pair with a Bluelab pH Pen for full solution management.
Additional information
| Weight | 0.12 kg |
|---|---|
| Dimensions | 21.5 × 7.5 × 4.5 cm |
About brand
Bluelab is a global leader in precision measurement tools for growers who demand accuracy and consistency. Growers rely on Bluelab for high-quality pH meters, conductivity meters, and nutrient solution monitors that help maintain optimal conditions at every stage of plant development.
Bluelab designs and manufactures its products in New Zealand, focusing on durability, ease of use, and long-term reliability. As a result, growers can monitor and adjust their nutrient solutions with confidence. Whether you test pH, measure EC, or manage irrigation systems, these tools give you the accurate data needed to maximise plant health and crop performance.
Why Choose Bluelab?
- Accurate pH, EC, and conductivity meters for precise growing
- Durable, reliable, and easy-to-use instruments
- Helps monitor and manage nutrient solutions effectively
- Trusted by commercial and professional growers worldwide
- Supports improved plant health, growth, and yield
Popular Bluelab Products
- Bluelab pH Pen
A compact and reliable handheld pH meter, ideal for quick and accurate readings in nutrient solutions. Perfect for both beginners and experienced growers. - Bluelab Truncheon EC Meter
One of the most trusted EC meters in the industry, known for its durability and simplicity. Provides fast, accurate nutrient strength readings with no calibration required. - Bluelab Guardian Monitor Wi-Fi
A continuous monitoring system that tracks pH, EC, and temperature in real time. Ideal for growers who want full control over their nutrient solution and environment.
Frequently Asked Questions
Why is pH important when growing plants?
pH affects how well plants absorb nutrients. If the pH is too high or too low, plants cannot take in essential nutrients properly.
What is EC and why does it matter?
EC measures the strength of your nutrient solution. It helps growers ensure plants receive the correct amount of nutrients without overfeeding or underfeeding.
Do Bluelab meters need calibration?
Yes, most Bluelab pH meters require regular calibration to maintain accuracy. However, some products like the Truncheon EC Meter do not require calibration.
Are Bluelab products suitable for beginners?
Yes, Bluelab products are easy to use and suitable for beginners, while still offering the accuracy required by professional growers.
Shipping & Delivery
DELIVERY TIMEFRAME
We aim to process and dispatch all orders within 2 working days of being placed. Wherever possible, parcels are sent on a next working day service to ensure you receive them quickly and reliably.
When your order is dispatched, you will receive a confirmation email with tracking information so you can closely monitor your delivery every step of the way.
Please Note: Delivery times may slightly vary during busy periods, or due to courier service disruptions. Rest assured, we always do our best to get your order to you promptly.
