Air humidityDigital sensor for temperature, humidity, and atmospheric pressure FHAD 46-Cx Common technical features FHAD 46-Cx • All sensors in 1 multi-sensor module: capacitive digital sensor for humidity and temperature, digital atmospheric pressure sensor. Additional EEPROM data storage medium in the sensor module. • The sensor module is thoroughly adjusted. All sensor characteristic and adjustment data are stored on the data storage medium of the sensor module itself. In the process of readjusting the individual sensors the adjustment values are directly saved on the data storage medium of the sensor module. • Every sensor module has a unique serial number saved on the humidity sensor. The serial number is either displayed in the sensor menu of the measuring instrument or in the ALMEMO® Connect software. Hence, calibrated sensor modules can clearly be assigned to the calibration certificate. • Replacement sensor modules are inexpensive: The sensor module is pluggable and can simply be exchanged on-site. Full accuracy without any adjustment, especially with calibrated sensors. The ALMEMO® connecting cable and the ALMEMO® measuring instrument have no influence on the calibration. • New: The atmospheric pressure is measured directly at the measuring point in the sensor tip. Hence, the atmospheric pressure dependent humidity variables are automatically pressure compensated. Digital sensor for temperature, humidity, and atmospheric pressure FHAD46-Cx, with ALMEMO® D6 plug Atmospheric pressure sensor integrated in the multi-sensor module, for automatic atmospheric pressure compensation • All relevant ambient parameters are measured with just one sensor. • Humidity calculation on the basis of formulae as per Dr. Sonntag and the enhancement factor as per W. Bogel (correction factor fw(t,p) for real mixed gas systems) This substantially widens the measuring range and improves the accuracy of humidity variable calculations. • Humidity variable: Absolute humidity in g/m3 • The humidity variables are calculated from the three primary measuring channels (real measurable variables) temperature, relative humidity, atmospheric pressure • Freely selectable measurable variables Four measuring channels are programmed (at our factory). temperature (°C, T, t), relative humidity (%H, RH, Uw), dewpoint (°C, DT, td), atmospheric pressure (mbar, AP, p) Other humidity variables can also be selected. mixture (g/kg, MH, r), absolute humidity (g/m3, AH, dv), vapor pressure (mbar, VP, e), enthalpy (kj/kg, En, h) The configuration is performed on the ALMEMO® V7 measuring instrument or directly on the PC using the USB adapter cable ZA1919AKUV (see chapter “ALMEMO® Network technology”). 11/2025 • We reserve the right to make technical changes. Measuring range Sensor Accuracy (incl. hysteresis) Nominal temperature Sensor operating pressure Response time T63 Digital temperature / humidity sensor (including A/D converter) Operative range depending on sensor type CMOSens® technology Atmospheric pressure (without filter) Sensor CMOSens® technology maximum ±0.4 K at 5 to 60 °C maximum ±0.7 K at -20 to +80 °C Reproducibility typical ±0.1 K Response time T63_typical 20 seconds (without filter)_ ALMEMO® connecting cable PVC; Length (see variants) with ALMEMO® D6 plug FHAD 46-C4xAx silicone Digital atm. pressure sensor (integrated in the multi-sensor module) Measuring range 700 to 1100 mbar Refresh rate 1 second for all four channels DAkkS accredited calibration or factory calibration KH9xxx temperature, humidity for digital sensor, see chapter „Calibration certificates4/ DAkkS accredited calibration meets all the requirements regarding test resources laid down in DIN EN ISO/IEC 17025. Technical data and variants (see chapter „Meteorology“)

Air humidityDigital sensor for temperature, humidity, and atm. pressure FHAD 46-C4xAx Version in stainless steel, with protective cap with ALMEMO® D6 plug Technical features • Extended operating temperature range. • Silicone connecting cable. Replacement multi-sensor module FH0D 46-C • Four measuring channels are programmed (at our factory). temperature (°C, T, t), relative humidity (%H, RH, Uw), dewpoint (°C, DT, td), atmospheric pressure (mbar, AP, p) Mechanical design Sensor tube Stainless steel, diameter 12 mm Protective cap slotted, open cap, SK10 Screw-fit cable gland Splash-protected General...

Air humidityDigital sensor for temperature, humidity, and atmospheric pressure FHAD 46-C2 Version in plastic, with slotted sensor cap with ALMEMO® D6 plug Replacement multi-sensor module FH0D 46-C2 Extension tube • Four measuring channels are programmed (at our factory). Dewpoint (°C, DT, td) Temperature (°C, T, t), Relative humidity (%H, RH, Uw) Atmospheric pressure (mbar, AP, p). Operative range -20 to +60 °C / 5 to 98 % RH Extension tube 0 8 mm, length 97 mm Mechanical design Plug connection 0 approx. 9 mm, IP40 General description and common technical data see FHAD 46-Cx 11/2025 • We reserve...