The NaK fill, or potassium-sodium fill, option is ideal for the most extreme temperatures, up to 530°C. This fill is both RoHS and FDA-compliant, and can be used in systems in contact with food, medicine, and food / medical packaging. NaK is neither suitable for hazardous environments or ATEX certified.

The food-grade oil option is ideal for the lower temperatures (less than 275°C) of processes that handle food and medical equipment, or the packaging of food and medicine. This fill is REACH, RoHS and FDA compliant. Additionally, the food-grade oil fill is ATEX certified for both intrinsic safety and explosion resistance.

The new HTF fluid fill option boasts a 350°C temperature rating, and is ATEX certified for intrinsic safety and explosion resistance. Additionally, HTF is approved for hazardous locations, making it a great alternative to NaK for those who need an ATEX certification and want to transition away from mercury.

Vertex is our capacitance-based sensor series, and offers an impressive 400°C maximum temperature point. Vertex is the only sensor technology approved for both hazardous locations and FDA applications. Vertex is also ATEX certified intrinsically safe and REACH / RoHS compliant.

For hazardous environments not covered by our alternative fill materials, the Hg fill option is available to meet the most demanding process pressures, with a maximum of 30,000 PSI configurable. Hg-filled sensors are ATEX certified for both intrinsic safety and are best suited for industrial applications.