Indoor monitoring often covers several rooms, measurement points and physical quantities. This wireless data logger family records values at the measurement site, stores them in internal memory and sends them automatically to the HD35AP base unit at regular intervals or on request, reducing the need to access each logger for data download.
Depending on the model, it measures temperature, humidity, atmospheric or differential pressure, illuminance, UVA, UVB and UVC irradiance, CO and CO2, or works with external probes and standard sensor inputs. Versions with integrated sensors, M12 probe connectors, terminal headers and RS485 Modbus-RTU inputs allow the system to adapt to laboratories, storage areas, buildings, clean rooms and industrial processes.
Optional LCD versions support checks directly at the installation point, including measured values, RF signal quality and battery status. For each measured quantity, two alarm thresholds can be set with configurable hysteresis and delay.
The data logger acquires measurements, stores them in internal memory and sends them to the HD35AP base unit automatically or on request.
Versions are available with fixed probes, M12 connectors for external probes, differential pressure inputs and terminal headers.
Models measuring relative humidity and temperature can calculate derived quantities such as dew point, wet bulb temperature and absolute humidity.
Each logger can be configured with its own measuring, logging and transmission interval within the system settings.
Versions with LCD display measured and calculated quantities and allow configuration from the front keypad with password protection.
LCD versions show RF information including RSSI, PER and RF hops, supporting positioning and connection checks during installation.
When the internal memory is full, logging can stop or continue by overwriting older data in cyclic mode.
