Item Type: NFC Temperature Data Logger Model: TTE35123 Usage: One-time use Temperature Measurement Range: -30 to 70(-4 to 158) Temperature Measurement Accuracy: 0.5/ 0.9 Resolution: 0.1 Data Recording Capacity: 32000 Battery: 3.0V button built-in battery (CR2450) 600mAh Recording Interval: 1-255 minutes, configurable Battery Life: 180 days (1 minute sampling interval) Communication Method: USB2.0 (computer), Bluetooth (mobile APP) Start Mode: Manual button/software timing Stop Mode: Manual / full stop Package List 1 x NFC Temperature Data Logger 1This temperature recorder has two reading methods, computer reading and APP reading. 232000 data storage can record continuously for 180 days, recording interval 1-255 minutes. 3This 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. 4Built-in 3.0V button battery, this temperature logger is very convenient to use when get it. 5The operation is simple, user can manually press the key when starting, or software timing.