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AquaMaster Tools E50 Pro EC Temp meter with LCD screen, showing 18.6°C and "nn uu".
AquaMaster E50 Pro EC and Temperature Meter, disassembled. Features digital display, buttons, probe, and protective caps.
Black EC/temperature meter probe with threaded connector and exposed sensor at the tip.
Black EC and temperature meter with a digital display and probe.
Black EC and temperature meter with a wrist strap.
AquaMaster Tools E50 Pro EC Temp meter with LCD screen, showing 18.6°C and
AquaMaster E50 Pro EC and Temperature Meter, disassembled. Features digital display, buttons, probe, and protective caps.
Black EC/temperature meter probe with threaded connector and exposed sensor at the tip.
Black EC and temperature meter with a digital display and probe.
Black EC and temperature meter with a wrist strap.
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Aqua Master Tools E50 Pro EC Temp Meter

Official Aqua Master Tools Dealer Model: AMT1005
$84.95 USD
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
Looking to finance equipment under your corporation? Learn more about Business Financing
  • Measures 0.0 to 19.9 mS/cm with 0.1 mS/cm resolution
  • IP67 waterproof rating keeps the internal electronics safe during accidental submersions
  • Auto-off feature engages after 8 minutes to maximize battery life
  • View More Details

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VOLUME PRICING

Commercial & Bulk Purchasing

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

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THROUGH THE Cultivator's LENS Hands-On Evaluation

  • You are checking your nutrient concentrations daily because erratic growth patterns make you suspect your reservoir EC is drifting
  • You are replacing a worn out pen because you are tired of dealing with inaccurate readings that stem from a degraded electrode

  • The float design is a lifesaver because it prevents the meter from sinking to the bottom of the reservoir
  • The electrode is replaceable, which means you avoid the expense of tossing the whole unit when the sensor gets tired

  • Growers who swapped from cheap fixed-electrode meters say they saved time by skipping the constant recalibration process
  • Users who keep the unit upright in storage solution say their readings stay stable for much longer than the previous model

Aqua Master Tools E50 Pro EC Temp Meter

Losing track of nutrient concentration is one of the fastest ways to under- or overfeed a crop, and a meter you're afraid to dip into a tank doesn't help. The Aqua Master Tools E50 Pro solves both problems: it's IP67 waterproof and buoyant enough to float, while a 1-point auto calibration feature keeps EC and temperature readings accurate. Users seeking similar precision in a dedicated conductivity format might also consider the Aqua Master Tools E60 Pro Conductivity Meter.

An ergonomic rubber back and a secured cap cord make the E50 Pro comfortable to hold and hard to misplace, while a replaceable electrode extends the meter's usable life well beyond a standard pen. It ships ready to use, batteries included.

For long-term accuracy, store the meter upright with KCl storage solution in the protective cover.

Features

💧
IP67 Waterproof & Floats

Fully waterproof and buoyant, so an accidental drop into your reservoir won't cost you the meter.

🎯
1-Point Auto Calibration

Calibrates quickly at 1.4 EC for consistently accurate readings.

🔌
Replaceable Electrode

Swap the electrode instead of replacing the whole meter, extending its usable lifetime.

✋
Ergonomic Grip

A rubber ergonomic back and secured cap cord keep the meter comfortable and in hand.

🔋
Battery Indicator

Displays battery status alongside automatic temperature compensation for reliable use.

What's Included

  • 1x E50 Pro EC Temp Meter
  • 3x 1.5V AG-13 Button Cell Batteries

Specifications

Specification Value
EC Range 0.0 – 19.9 mS/cm
Temperature Range 0°C ~ 50°C (32°F ~ 122°F)
EC Resolution 0.1 mS/cm
Temperature Resolution 0.1°C (1.0°F)
EC Accuracy ± 2% F.S.
Temperature Accuracy ± 0.5°C (32°F)
Temperature Compensation Range 0°C – 50°C (32°F – 122°F)
EC Calibration 1-point auto calibration, 1.4 EC
Power Supply 3 × 1.5V AG-13 Button Cell Batteries
Auto Power-Off After 8 minutes
Calibration Indicator Indicates correct calibration
Waterproof Rating IP67
Dimensions 220 × 40 × 40 mm
Weight 102 g

Video Tutorials

Frequently Asked Questions

How do I know what the E50 Pro measures? +

The E50 Pro measures EC and temperature in a variety of liquids. For those needing to monitor pH alongside these values, the Aqua Master Tools P110 Pro 2 Combo Pen offers a comprehensive all-in-one solution.

How do I calibrate the meter? +

The E50 Pro uses a 1-point auto calibration at 1.4 EC. Check the linked EC calibration video above for a full walkthrough.

What happens if I drop it in water? +

The E50 Pro is IP67 waterproof and designed to float, so an accidental drop into your reservoir won't damage it or cause it to sink.

How do I replace the electrode? +

The electrode is replaceable, extending the meter's lifetime. See the linked replacement video above for step-by-step instructions.

Does it come with batteries? +

Yes, the E50 Pro ships with 3 included 1.5V AG-13 button cell batteries, so it's ready to use right out of the box.

How should I store the meter between uses? +

Store it upright with KCl storage solution in the protective cover to help keep the electrode accurate over time.

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

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