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Bluelab

Bluelab pH Pen Meter and Probe Care Kit pH for Optimal Plant Health

✅ In stock 📉 Price recently dropped
C
Grade
🙂 Fair Price
47.27/100
Current Price
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply to the purchase of this product.
$109.00
Listed $124.79
Save $15.79 13% OFF
Analysis Confidence 100%
Check Deal at Amazon
Price verified Sep 23, 2026 11:01 PM · Prices & availability subject to change

Is This a Good Price on Amazon?

🙂 Fair Price
  • 🙂Verdict: Fair Price. Small discount vs history. Consider waiting for a better drop.
  • 💰The price is modestly below what this product ordinarily sells for.
  • 🏷️The listed retail price is trimmed by 13% at checkout.
  • 📉Going back roughly eight months, a more competitive price has not appeared — this stands out as a strong value by recent standards.
  • 📈The direction is downward at the moment; if that holds, an even better price may surface — though timing the market is never certain.

How We Scored This Deal

Price Competitiveness 6.18/28
Recent Value 5.45/22
Market Standing 12.64/20
Deal Strength 13/20
Momentum 10/10

📝 Product Overview

🏪 Sold by Bluelab Store
📦 Fulfillment Fulfilled by Amazon
🚚 Shipping Free Shipping

Product Details

Reliable & Easy-to-Use: The Bluelab pH Pen is waterproof, features a backlit LCD for easy reading in any light, and automatically adjusts for temperature changes. Accurately measures pH in nutrient solution (acid or alkaline) for precise up and down adjustment with a lab-quality glass probe. The pen's double junction electrode has a longer lifespan compared to standard probes due to less contamination. It's more accurate and reliable than comparable pens, test strips, drops, and more. *Note: readings in tap, reverse osmosis (RO) or distilled water may be slow and/or unstable due to insufficient dissolved Ions (salts).
Temperature Consistent & Durable: This hydroponics tester features ATC, providing consistent readings regardless of any temperature fluctuations. It also reminds you when calibration is due. Boasting a durable design, it's built for repeated use & is fully waterproof, even floating in solutions. With an auto-off feature and a low battery indicator, this pH pen extends battery life and alerts you when it's time for a battery replacement. The pen comes ready-to-use with a AAA battery included.
Comprehensive Care Kit: The Bluelab Probe Care Kit pH includes everything you need to maintain your pH pen, including probe care instructions, 18 ml single-use Bluelab Solution Sachets for calibration (two each of pH 7.0, pH 4.0, KCl solutions), and three plastic cups for mixing solutions.
Maintains Probe Integrity: The kit includes a pH Probe Cleaner and a specially designed toothbrush for cleaning the delicate pH probe, ensuring accurate readings and preventing residue build-up.
Optimize Plant Health: The Bluelab pH Pen and Care Kit offer a complete solution for pH testing and management, helping you create the best conditions for your indoor plants or hydroponics, leading to improved plant health and greater yields. Ideal for various uses, including growing tents, swimming pools, drinking water, aquariums, fish tanks, and brewing

⚙️ Specifications

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Price
$95.20
$143.94
$260.00
$223.99
$300.00
Medium
Nutrient Solution
Suitable Applications
Multi-Medium
Probes for Multi-Medium
Hydroponic Solutions
Test Soil pH Levels
Moisture, Nutrients, Temp
Multiple Applications
Remote Monitoring
Conductivity (TDS/PPM)
C
$109.00
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