ROTRONIC AG

Water Activity - Moisture Meter

Water Activity

Water activity measurement stations measure in the range of 0…1 aw which equates to 0…100 %ERH and supply a digital output signal to interface with HygroLab and HygroPalm water activity indicators. Digital calibration can be performed with the help of these instruments, or with PC software. The HC2-AW and AW-DIO measurement stations have a large thermal mass. This means the probes react very slowly to temperature changes so that virtually no variations arise during measurement – especially when using the AW Quick function. The extremely small internal volume of the sensor chamber ensures humidity equilibrium is reached very quickly in the case of all products.
HC2-AW HC2-AW For water activity measurements in bulk materials such as flour, grain, spices, etc. For solid and pasty products such as meat, sausage as well as oils, fats, etc. Learn More HC2-AW-USB HC2-AW-USB The new station probe HC2-AW-USB offers new possibilities. The USB probe can be directly connected to a PC running HW4-P-QUICK-Vx software enabling water activity measurement capability. The HC2-AW-USB is the perfect device for a multi station application, as multiple probes can be attached to a single PC.
Learn More
HC2-AW-USB-SW HC2-AW-USB-SW The new station probe HC2-AW-USB offers new possibilities. The USB probe can be directly connected to a PC running HW4-P-QUICK-Vx software enabling water activity measurement capability. The HC2-AW-USB is the perfect device for a multi station application, as multiple probes can be attached to a single PC. Learn More HC2-P05 HC2-P05 The insertion probe is suitable for measurement in dust-free bulk materials, bricks, concrete, etc. It measures humidity and temperature and calculates the dew/frost point. Learn More HC2-HP28 HC2-HP28 / HC2-HP50

The insertion probe is suitable for measurement in dusty bulk materials. It measures humidity and temperature and calculates the dew/frost point.

Learn More
HygroLab C1 HygroLab C1 ROTRONIC provides a high-end laboratory device – the HygroLab C1 – for water activity measurements with up to four probes. Connect station probes and insertion probes for measuring water activity in cheese, meat, tobacco, building materials, animal feed, pharmaceuticals products and much more. Learn More HygroLab C1-SET-40 E HygroLab C1-SET-40 The ROTRONIC Aw starter kits include everything needed for measurement and calibration. Learn More HygroPalm - HP23-AW-A (with HC2-AW) HygroPalm - HP23-AW-A In many situations it can be very useful to measure water activity in production or storage rooms, e.g. inspection of bulk materials to ensure they meet specifications. Learn More HP23-AW-A-SET HP23-AW-A-SET-14 The HygroPalm AW sets are the perfect solution for on-site measurements. They are supplied in a tough, lightweight ABS carry case and include everything needed for measurement and calibration. Learn More HP23-AW-A-SET-40 HP23-AW-A-SET-40 The HygroPalm AW sets are the perfect solution for on-site measurements. They are supplied in a tough, lightweight ABS carry case and include everything needed for measurement and calibration. Learn More WP-14-S WP-14-S

Sample holder 14 mm


The stainless steel sample holders were developed specifically for the water activity probes HC2-AW(-USB). The sample holder provides excellent sample containment and optimum temperature stability.

Learn More
WP-40 WP-40

Sample holder 40 mm


The stainless steel sample holders were developed specifically for the water activity probes HC2-AW(-USB). The sample holder provides excellent sample containment and optimum temperature stability.

Learn More
WP-40TH WP-40TH

Sample holder 40 mm


The stainless steel sample holders were developed specifically for the water activity probes HC2-AW(-USB). The sample holder provides excellent sample containment and optimum temperature stability. The WP-40TH is additionally temperature-controllable.

Learn More
PS-14 PS-14

Disposable sample containers 14 mm

Learn More
PS-40 PS-40

Disposable sample containers 40 mm

Learn More
AW-HKS AW-KHS In the case of very dry or very moist samples additional mechanical sealing of the AW measurement probe and sample holder may be necessary to prevent external conditions influencing the sample. Learn More