METER Aqualab PAWKIT, Portable Water Activity Meter

Grab and go

Designed for government inspectors and third-party auditors, the battery-operated portable PAWKIT water activity meter is perfect for water activity spot checks on the go.

How it works

To make a measurement, flip back the sensor cover and fit the PAWKIT over a standard AQUALAB sample cup. Push the button for a water activity reading in 5 minutes.

Portable water activity

The 3.5 x 4 inch PAWKIT weighs just 4 ounces and is designed to fit in a lab coat pocket. It runs on two coin cell batteries that last up to 3 years under normal use. It has an easy two-point calibration using AQUALAB standards.


The PAWKIT is designed to make readings where a bench top meter is not practical. Its small size and battery power deliver the ultimate in portability, but limit the PAWKIT’s accuracy (± 0.02 aw) due to its capacitance sensor and lack of temperature control. The PAWKIT portable water activity meter should only be used in situations where a higher accuracy reading is not critical to ensure or document safety and quality.

Water activity

Range: 0.00–1.00 aw
Resolution: 0.01 aw
Accuracy: ±0.02 aw


Resolution: 0.1 °C
Accuracy: ±0.2 °C

Read time

5 min

Case dimensions

Length: 10.7cm
Width: 6.6cm
Height: 2.0cm

Case material

Stainless steel and valox 325 plastic

Sample cup capacity

7.5mL, recommended (15mL, full)




64 × 128 graphical

Operating temperature

Minimum: 4 °C
Maximum: 50 °C

Operating environment

0%–90% relative humidity (noncondensing)


2-3 V 16 mm coin cell batteries (approx. 3 yr. life in normal use)


Manufactured under ISO 9001:2015
EM ISO/IEC 17050:2010 (CE Mark)

METER Aqualab Pawkit Brochure


METER Aqualab Pawkit Full Manual


METER Aqualab Pawkit Quickstart


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