Skip to main content

Send Us a Message

Search

Aqua Master Tools E300 Pro EC Electrode

starting from 0% interest financing from /mo.

Payment Options

Options:Pay in Four, Pay Monthly
Amount:Up to $1,500 (Pay in 4)
Up to $10,000 (Monthly)
Schedule:Bi-weekly to Monthly
Term:6 weeks, 12 or 24 months
Interest:0% to 35.99% APR*
Credit Check?Soft Check Only
Schedule:Bi-weekly to Monthly
Term:6 weeks, 6 or 12 months
Interest:0% to 35.99% APR*
Credit Check?Soft Check Only
Finance up to:$4,000
Must apply on a desktop device.
Schedule:Flexible
Term:Up to 36 months
Interest:Processing fee + interest
Lease-to-Own?Yes
Amount:$500 to $10,000
  • Designed for use with the Aqua Master Tools E300 Pro Substrate meter.
  • Stainless steel construction for improved resistance to daily wear.
  • Uses a standard PIN connection for fast installation.
  • View More Details

Earn 89 points for shopping and get $0.89 off your next order. Join Harvest Club for free.

Questions? Talk to a specialist. Mon–Fri, 9am–5pm PST
Free Shipping On Most Items* To the lower 48
Transparent Pricing Backed w/ price match guarantee
Secure Checkout SSL encrypted payments

Send Us a Message

Ask Sage about this product
VOLUME PRICING

Commercial & Bulk Purchasing

We support operations & licensed facilities with volume pricing, dedicated account managers, and custom equipment consultation.

Commercial Inquiry

Contact Information
THROUGH THE Cultivator's LENS Hands-On Evaluation

  • You are replacing a damaged sensor because you need to restore your meter's precision without rebuying the whole unit.
  • You are keeping a spare electrode on hand because waiting for a replacement part during a growth cycle costs too much.

  • The stainless steel housing feels much tougher than the plastic sensors we see on cheaper meters.
  • Connecting this via the PIN input takes seconds and keeps your setup clean without messy wiring.

  • Growers who keep this spare in the box report they avoided downtime when their primary electrode finally failed.
  • Users who store this with proper KCl solution say their readings stay stable for much longer than expected.

Aqua Master Tools E300 Pro EC Electrode

A worn or damaged electrode doesn't mean replacing your entire E300 Pro substrate meter. This replaceable EC electrode is built specifically for the E300 Pro, restoring accurate readings without the cost of a full replacement unit. Made of stainless steel, it's built to be almost unbreakable, standing up to the daily wear of substrate testing.

For long-term accuracy, store the EC electrode with KCl storage solution in the protective case.

Features

🔌
Easy PIN Connection

Connects easily via a PIN connector for straightforward installation.

💪
Nearly Unbreakable Build

A stainless steel construction is built to withstand the wear of everyday substrate testing.

Installation Instructions

  1. Detach the PIN connector of the old EC electrode from the meter.
  2. Connect the PIN connector of the new EC electrode to the meter.
  3. Calibrate the meter as described in the user manual.
  4. The meter is now ready for use.

Specifications

Specification Value
Compatibility Aqua Master Tools E300 Pro Substrate EC/Temp Meter
Connector Type PIN
Material Stainless Steel
Dimensions 3.03 × 2.20 × 7.87 in

Video Tutorial

Frequently Asked Questions

Which meter is this electrode for? +

This replacement EC electrode is designed specifically for the Aqua Master Tools E300 Pro Substrate EC/Temp meter.

What is the electrode made of? +

The electrode is made of stainless steel and designed to be almost unbreakable, standing up well to regular substrate testing.

How do I replace the electrode? +

Detach the old electrode's PIN connector from the meter, connect the new electrode's PIN connector, then calibrate the meter as described in the user manual. Full steps are listed above, or in the linked how-to video.

Do I need to calibrate the meter after replacing the electrode? +

Yes, calibrate the meter as described in the user manual after installation so it's ready for accurate readings.

How should I store the EC electrode? +

Store the electrode with KCl storage solution in the protective case to help extend its usable life between uses.

Happy To Help

Questions About This Product?

Our specialists are happy to help. Call us or send a message and we'll get back to you within one business day (most of the time within a few hours.)

Call (360) 800-5535

Why Trimleaf

Equipping home growers, craft producers, and commercial operations across North America since 2016.

10+
Years of Specialist Knowledge
4.8★
1950+ Verified Reviews
50,000+
Growers Served
120+
Top Equipment Brands in Stock