Sample Containment & Holders

• Sample Holders (WP-14 or WP-40): These are solid, heavy-duty metal blocks designed to hold the disposable sample containers. Because temperature stability is critical for accurate Aw calculations, the massive steel or aluminium body acts as a thermal mass to shield the sample from rapid micro-climatic temperature shifts.
• Temperature-Controlled Station (WP-40TH): Unlike standard passive blocks, the WP-40TH is an advanced, fluid-jacketed sample holder. It features built-in channels that connect to an external circulating water bath or laboratory chiller. This allows you to actively heat or cool the sample to a precise, constant temperature (e.g., maintaining exactly 25°C), which is essential for official regulatory compliance testing and tracking temperature-dependent product behaviour.
• Disposable Sample Containers (PS-14 or PS-40): Small, medical-grade plastic cups available in two depths (14mm or 40mm). They prevent cross-contamination between batches. You fill these cups with your sample (powders, gels, tablets, or liquids) and drop them directly into the matching metal sample holder.

Mechanical Clamping Kits

• Mechanical Clamping Kit (AW-KHS): For very light samples, low water activity levels, or environments prone to vibration, a simple friction fit might not seal the probe tight enough. The mechanical clamping mechanism physically locks the HC2-AW probe down onto the sample holder with mechanical leverage. This ensures an airtight, hermetic seal, completely eliminating ambient room air leakage that could skew the sensor’s readings.

Using the full ecosystem ensures samples are taken in airtight sealed environments with high thermal stability. Disposable containers ensure no contamination from previous tests.