The indicator STR551 stands out in its market segment for the bright OLED display and the innovative multilingual interface as well for RFID/NFC connectivity. The analogue input can be configured by parameter for a wide range of temperature sensors and process signals in mA and Volts. The monochromaticOLED graphic display supports graphs showing process trend with programmable sampling times andbar graphs with alarm thresholds as typically used for level, flow and dosage visualization.

The linearization of input can be customized up to 16 points as required on tanks with irregular profile. Mathematical functions linked to process value are also available, such as Totalizer and Sum. Connectivity is guaranteed by RS485 with Modbus RTU/Slave protocol.

For maximum flexibility of use, it is also possible to choose between horizontal or vertical installation of the same device.

Distinctive feature of the entire STR series is the innovative multilingual interface, with text menus allowing intuitive and quick navigation of parameters and display pages. It is possible to choose among five languages and the comprehensive menu considerably reduces the need to consult technical manual for initial set-up.

An additional programming tool is the dedicated App MyPixsys relying on RFID/NFC connectivity and allowing straightforward programming without wirings/power supply.

Parameter Name	Parameter Value
Measured value	temperature
Display	LCD with LED display with bar graph display
Type	panel-mount
Other characteristics	programmable RS-485 Modbus with alarm analog input totalizer