Wasseraktivitätsmessgerät für Kaffee und Lebensmittel | RoastSee AquaGauge
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RoastSee AquaGauge water activity analyzer with touchscreen and detached sample chamber
RoastSee AquaGauge water activity analyzer, front view of the black housing and base
Close-up of the RoastSee AquaGauge touchscreen showing a water activity reading beside green coffee beans
RoastSee AquaGauge water activity analyzer beside a clear cup of green coffee beans
RoastSee AquaGauge water activity analyzer with touchscreen and detached sample chamber
RoastSee AquaGauge water activity analyzer, front view of the black housing and base
Close-up of the RoastSee AquaGauge touchscreen showing a water activity reading beside green coffee beans
RoastSee AquaGauge water activity analyzer beside a clear cup of green coffee beans

RoastSee AquaGauge Wasseraktivitätsanalysegerät

Portable Water Activity Analyzer for Coffee, Food & Laboratory Use

$369.00
$369.00
$369.00
Precision You Can Trust

0.05–0.99 AW Measurement Range ±0.01 AW Accuracy (Precise Mode) 0.001 AW Resolution 10–12 g Sample Required Fast Mode (QuickMode) & Precise Mode (AccurateMode) for different use cases

Why Water Activity Matters?

Water activity determines product stability, shelf life, and microbial risk. In coffee, it directly affects storage safety and quality consistency. In food and agricultural products, it is a key parameter for preservation and safety control. Accurate water activity measurement enables better decision-making across production, storage, and quality control.

One Device, Multiple Applications

1.Coffee:Green coffee storage and quality evaluation 2.Food :Shelf life and moisture stability analysis 3.Grains & Agriculture:Moisture control and storage monitoring 4.Laboratory:Research and analytical testing

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Warranty & Repair Support
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Warranty & Repair Support

LeBrew provides a one-year limited warranty covering materials and workmanship.
If any issue occurs during normal use, our team offers support, repair, or replacement to ensure reliable performance.
For service inquiries, please contact our support team.

What’s in the Box
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What’s in the Box
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In The Box

  • RoastSee AquaGauge Device ×1
  • Sample Plate ×1
  • Acrylic Lid ×2
  • Empty Calibration Bottle ×1
  • USB Charging Cable ×1
  • Printed User Manual ×1

Please note: The calibration bottle is supplied empty. Premixed calibration solution is not included.

Frequently Asked Questions
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Frequently Asked Questions
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1.What is water activity?
Water activity (AW) measures the amount of free water available in a material.
It is a key parameter for evaluating product stability, shelf life, and microbial growth risk.

2.Why is water activity important in coffee?
In coffee, water activity affects storage stability, mold risk, and overall quality consistency.
Monitoring AW helps ensure safer storage conditions and more reliable green coffee evaluation.
3.What is the measurement range of AquaGauge?
RoastSee AquaGauge measures water activity from 0.05 to 0.99 AW, covering a wide range of applications including coffee, food, and agricultural products.

4.What is the accuracy of AquaGauge?
AquaGauge offers two measurement modes:
Fast Mode (QuickMode): ±0.05 AW for quick evaluation
Precise Mode (AccurateMode): ±0.01 AW for higher accuracy measurements
5.How much sample is required?
Only 10–12 g of sample is required for measurement, making it efficient for both small-scale testing and routine analysis.


Manual & Quick Start
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RoastSee AquaGauge water activity analyzer with touchscreen and detached sample chamber
RoastSee AquaGauge water activity analyzer, front view of the black housing and base
Close-up of the RoastSee AquaGauge touchscreen showing a water activity reading beside green coffee beans
RoastSee AquaGauge water activity analyzer beside a clear cup of green coffee beans
RoastSee AquaGauge water activity analyzer with touchscreen and detached sample chamber
RoastSee AquaGauge water activity analyzer, front view of the black housing and base
Close-up of the RoastSee AquaGauge touchscreen showing a water activity reading beside green coffee beans
RoastSee AquaGauge water activity analyzer beside a clear cup of green coffee beans
RoastSee AquaGauge water activity analyzer with touchscreen, shown against purple light rings RoastSee AquaGauge water activity analyzer with touchscreen, shown against purple light rings

Quickly Assess Your Green Bean Water Activity

Understanding the water activity of green beans is crucial for green bean trading and pre-roasting preparations.
Cutaway illustration of the MEMS humidity sensor inside the RoastSee AquaGauge Cutaway illustration of the MEMS humidity sensor inside the RoastSee AquaGauge

MEMS Humidity Sensor

Equipped with a MEMS humidity sensor coated with a specially formulated metal oxide layer, offering higher accuracy and greater sensitivity.
AquaGauge measurement range graphic showing 0.05 to 0.99 aw and 5 to 99 percent relative humidity AquaGauge measurement range graphic showing 0.05 to 0.99 aw and 5 to 99 percent relative humidity

Wide-Range Measurement, Measure Anywhere

Covers nearly 99% of the water activity range,
allowing you to see the true condition of every batch of green beans.
AquaGauge dual-mode comparison: Precise Mode plus or minus 0.01 aw and Fast Mode plus or minus 0.05 aw AquaGauge dual-mode comparison: Precise Mode plus or minus 0.01 aw and Fast Mode plus or minus 0.05 aw

Dual Modes, Precision-Controlled Error

Fast Mode (QuickMode): Ensures reliable accuracy while shortening measurement time.
Precise Mode (AccurateMode): Extends measurement time for enhanced precision.
RoastSee AquaGauge touchscreen interfaces for measurement, settings, zeroing and mode selection RoastSee AquaGauge touchscreen interfaces for measurement, settings, zeroing and mode selection

Simple Operation, All-in-One Screen

Intuitive interface for fast and easy operation.
Green coffee inspection, bagged coffee storage and a roaster checking coffee beans Green coffee inspection, bagged coffee storage and a roaster checking coffee beans

For Green Bean Trading, Storage & Roasting

Trading: Quickly assess green bean quality.
Storage: Optimize environmental humidity and temperature.
Roasting: Adjust roasting curves based on water activity.
A hand holding the compact RoastSee AquaGauge beside its 1500 mAh battery label A hand holding the compact RoastSee AquaGauge beside its 1500 mAh battery label

Compact, Portable & Durable

Small and easy to carry.
With a 1500mAhbattery supporting multiple measurements demand.
AquaGauge accessory photo showing the analyzer, a labeled bottle, a clear sample cup with beans and a USB cable AquaGauge accessory photo showing the analyzer, a labeled bottle, a clear sample cup with beans and a USB cable

Included Accessories

RoastSee AquaGauge ×1 · Sample Plate ×1 · Acrylic Lid ×2 · Empty Calibration Bottle ×1 · USB Charging Cable ×1 · Printed User Manual ×1. The calibration bottle is supplied empty; premixed calibration solution is not included.
AquaGauge specification chart covering range, accuracy, reading time, resolution, temperature, battery, dimensions and weight AquaGauge specification chart covering range, accuracy, reading time, resolution, temperature, battery, dimensions and weight

Main Specifications

SUPPORT 8/5

Contact us at 10:00 to 18:00 Beijing Time (UTC+8), 5 days a week

365 DAYS WARRANTY

We provide One year warranty on all products!（accessories not included）

100% PAYMENT SECURE

We ensure secure payment with PEV