The912TemperatureandRelativeHumiditySensorcomprisesaplatinumresistancetemperaturesensor,andcapacitiveRHsensormountedinamultiplatescreen.The912hasanaturallyventilatedversionandanaspiratedversion.Theflexiblemountingbracketallowsanumberofmountingarrangements.The912sensorrequiresa12VDCsupplyfromthedata-loggerorDatatelemetryunit.TheRHchanneloutputsa0-1Voltsignalrepresentingtherange0-100%RH.IntheM1version,thetemperaturechannelisavoltageoutputintherange0-1Vrepresentingatemperaturerangeof-40to+60DegreesCInthehighprecisionM2Versiona3wiredirectconnectiontotheplatinumresistanceelementcanbemade,withausablerangewithin-50to+80degreesC.The912isc***tructedfromnonhygroscopicaluminiumplates,andarobustmountingbracket.Thesensorelementcanbeunpluggedforeasyreplacement.Theforcedaspirationversionfeaturesabuiltin12VoltDCfan.Thecalibrationisperformedat10,35and80%,andisstabletowithin1%overayear.Yearlycalibrationisrecommended.Allversi***ofthe912arefullycompatiblewiththeMTECH2060AutomaticWeatherStationtelemetryUnitandthemajorityofcommercially***ailabledataloggers.Applicati***AIRPORTSMETEOROLOGYBOTANYHORTICULTUREFORESTRYBUILDINGRESEARCFeaturesWMOSTANDARDRUGGEDSENSITIVEENVIRONMENTALLYPROVEN)