Applications
On-site calibration and adjustment of ROTRONIC probes (third-party probes also possible). With the humidity standards, a calibration device and the HW4 software, this can be done easily at a PC. Without the software it is also possible to calibrate and adjust probes with the handheld instrument HP23-A.

Features
• Ampoules contain unsaturated salt solutions
• Inexpensive calibration on site
• Simple and safe use
• Unlimited lifetime
• Practical packs of 5 ampoules of the same humidity value (approx. 0.8 ml per ampoule)

Availability
Products ship within 1-2 weeks