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 Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-Minnanxin