ISPRA Istituto Superiore per la Ricerca e la Protezione Ambientale





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National Tidegauge Network

General information




Anomalus waves

Tidegauge stations

Ondametric stations


Air temp. & rh% transducer

Barometric sensor

Hydrometric staff

Level pressure

Multi parameter probe

Ondametric buoy

Radar level transducer

Radar pluviometer

Ultrasonic sensor wind intensity and direction

Ultrasonic tidegauge

Water level sensor

Water temperature transducer

Stations comparison

RMN Levelling

Data/analysis archive




Measure principle: The transducer produces a series of microwave impulses that are sent from radar emitter to measuring level. The reflected microwaves are noticed by spar and sent to electronic devices where a microprocessor appraises signal and identifies the reflected echo coming from measured surface calculating the distance from transducer.
Intelligent sensor: The transducer belongs to the intelligent sensor family as based on a micro-processor chip that execute among other functions: the correct control functioning, data pre-processing, electrical signal A/D conversion etc. This characteristics warranty excellent accuracy, long-term stability and high data reliability.
Laboratory calibration: The sensor can be supplied with a SIAP+MICROS calibration certificate or with calibration certificates issues by external primary metrological services (SIT, Colonetti, ecc).
Housing materials and International standards: The external structure is made by die casting aluminum, while the parts attached by liquid are made by stainless steel AISI316L. The transducer complies with CE EMC standards, its protected against over tensions and is fully compliant within the WMO (World Meteorological Organization) standards.

Technical data

Range: 0,6 15 m
Analog output range: 420mA into configurable range
Sensitivity: .5 mm
Accuracy: 1 mm
Transducer: Radar
Working temperature: -30 +80C
Power supply: 1016 Vdc
Max load : 390 ohm
Supply current (mA): 50 mA
Protections: Polarity reverse and transient
Housing: alluminum alloy and AISI 316L
Weight: 4000 g
Dimensions: 143x193x162 mm


This sensor is installed into these stations:

Ancona, Anzio, Bari, Cagliari, Carloforte, Catania, Civitavecchia, Crotone, Gaeta, Genova, Imperia, La Spezia, Lampedusa, Livorno, Marina Di Campo, Messina, Ortona, Otranto, Palermo, Palinuro, Ponza, Porto Empedocle, Porto Torres, Ravenna, Reggio Calabria, Salerno, San Benedetto Del Tronto, Sciacca, Taranto, Tremiti, Trieste, Venezia, Vieste