Specification: Item: Data LoggerType: Temperature, RedTemp. Range (F): -4 Degrees to 131 DegreesAccuracy: +/-0.5 Degrees F Life: 6 moSample Point Storage: User SettableRemote Probe: NoDigital Readout: NoAC Adapter: NoWaterproof: IP67Time Intervals: User Settable: In App AlertsResists: Waterproof IP67Width (In.): 1.8 inDepth (In.): 1.8 inHeight (In.): 2.4 inSoftware Required: Free AppSpecial Features: BLE, In App Charting, Shareable DataCompatible With: iOSFrequency of Transmissions: User SettableInterface: Free AppWireless Range: Yes, 100 ftCalibration Certificate: YesIncludes: Manufacturers Warranty Length: 5 yrWarning: California Residents: This product and/or packaging can expose you to chemicals including Styrene, which is known to the State of California to cause cancer and birth defects or other reproductive harm.