Specification AgeRangeDescription : Adult Brand : Tecpel BulletPoint : Tecpel digital Humidity thermo hygrometer DTM-321 BulletPoint1 : Product Type: digital indicator BulletPoint2 : CE compliance: Yes BulletPoint3 : Max temperature (º C): 150 BulletPoint4 : Min temperature (º F): -58 BulletPoint5 : Max temperature (º F): 302 CareInstructions : Wipe Clean Color : as picture show ExternallyAssignedProductIdentifier : 5028890393519 ExternallyAssignedProductIdentifier1 : 615150726627 ExternallyAssignedProductIdentifier2 : 0615150726627 IndoorOutdoorUsage : outdoor ItemName : Tecpel Digital Handheld Humidity Thermo Hygrometer DTM-321 ItemPackageDimensions_Height : 23.368 centimeters ItemPackageDimensions_Length : 0.508 centimeters ItemPackageDimensions_Width : 14.478 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : science-lab-digital-thermometers Manufacturer : Tecpel Material : Plastic and metal ModelName : 9005000 ModelNumber : Tecpel DTM-321 MountingType : Tabletop NumberOfBoxes : 1 NumberOfItems : 1 PartNumber : DTM-322 PowerSourceType : Battery Powered ProductDescription : DTM-322: Dual Input + Data Recorder.+RS-232 interface (optional USB cable) Specifications: Q & A: Customer asks in DTM-321 manual, measurement range is 0%~100% but operating environment is only 0 to 90% non-condensing –> so whether these two information conflicts? to extend its usage life. The sensor measurement range can work for 0~ 100% RH but the operating environment 0 ~ 90% RH(Non Condensing) is for the meter itself. There is no conflicts with each other. Besides, 100% RH is close to water and this will cause meter damaged for all electronics devices. Therefore, it is recommended to keep the sensor and meter dry to extend its reliability and usage life. Features: Temp:-20°C ~ 60°C (-4°F ~ 140°F ); K-type: -200°C ~ 1,370°C (-328°F ~ 2,498°F); Humidity: 0 ~ 100% RH Data Logging capacity 16,000 records. 4 Digit, Triple display. K-type Termocouple. Reading hold, °C or °F annunciators. MAX, MIN function. Auto power off. Time function. Automatic low battery indication. RS-232 computer interface. RS-232 cable and software for Windows. USB Cable and USB driver disk (optional) ProductSiteLaunchDate : 2017-05-09T07:00:00.000Z ResponseTime : 1 seconds Reusability : Rechargeable Size : White SpecificationMet : CE SpecificationMet1 : ISO 9001 SpecificationMet2 : ANSI SpecificationMet3 : ASTM SupplierDeclaredDgHzRegulation : not_applicable SupplierDeclaredHasProductIdentifierExemption : 1 TemperatureAccuracy : 0.5 UnitCount : 1 UnspscCode : 41110000 UpperTemperatureRating : 140 degrees_fahrenheit