1、This temperature recorder has two reading methods, computer reading and APP reading. 2、32000 data storage can record continuously for 180 days, recording interval 1-255 minutes. 3、This temperature logger is applicable to all aspects of the pharmaceutical cold chain, and can be used to detect, track, and record the temperature of vaccine drugs. 4、Built-in 0V button battery, this temperature logger is very convenient to use when get it. 5、The operation is simple, user can manually press the key when starting, or software timing. 1 x NFC Temperature Data Logger Item Type: NFC Temperature Data LoggerModel: TTE35123Usage: One-time useTemperature Measurement Range: -30℃ to 70℃(-4℉ to 158℉)Temperature Measurement Accuracy: ± 0.5℃/ 0.9℉Resolution: 0.1Data Recording Capacity: 32000Battery: 3.0V button built-in battery (CR2450) 600mAhRecording Interval: 1-255 minutes, configurableBattery Life: 180 days (1 minute sampling interval)Communication Method: USB 2.0 (computer), Bluetooth (mobile APP)Start Mode: Manual button/software timingStop Mode: Manual / full stop