• Internal temperature, relative humidity
• Dew-point temperature calculated from the internal temperature and relative humidity
• High quality, accurate and stable sensors
• Built-in battery operated

Datalogger is designed to record temperature from four external Pt1000 probes. The recording is performed in non-volatile electronic memory. The data can be transferred to a PC via USB-C.

In case of exceeded set limits alarms are indicated by LED, LCD, and acoustically by built-in beeper. The device includes a Traceable calibration certificate with declared metrological traceability of etalons is based on requirements of EN ISO/IEC 17025 standard.

This model is designed to measure temperature, relative humidity, and dew-point temperature by internal sensor, no additional probes or sensors can be connected. It is characterized by a simple and compact design and a relatively long response to a temperature and humidity jump, compare to a model with external probes. The sensors are located under the grid on the front of the unit and are protected with Teflon foil. Foil permits water vapour but prevents water from permeating the liquid state.

The device is suitable for measuring in places where there is no rapid change in temperature or relative humidity, and there is no condensation of water vapours. If water vapour condensation occurs inside the datalogger, then the resulting water will remain there and may damage its electronics. The device is placed directly in the measured space. The battery in the device cannot be charged. It is recommended to calibrate this device in the laboratory with the unscrewed bottom lid of the box to allow the air to flow from the back of the electronics. When airflow in the range of 0.5 - 1 m/s perform reading after about 4 hours.

The closed device reaches a difference of approximately 2 %RH when inserted in the humidity chamber, then dramatically slows down. Precise reading takes many times longer time than with the open rear lid.