Portable for Bluetooth USB Temperature Recorder Monitor Data Logger for Cold Chain Transportation Item Type: Temperature Recorder Material: ABS+Magnet Battery Model: ER14250 750mAH (Build-In) Project Parameters Measuring Range Temperature -60℃ -120℃; Resolution: 0.1℃ Accuracy Average ±0.3℃ (-20℃-40℃) Average ±0.5℃ (-40℃-20℃/40℃-80℃) Average ±1.0℃(-60℃-40℃/80℃-120℃) Sensor External thermistor Data Capacity 32000 Start Method Button or timing start Recording Interval User configurable (10 seconds to 18 hours) Alarm Range User configurable, 2 upper limits, 2 lower limits Alarm Type Single type, cumulative type Turn on Delay User configurable (0-254 minutes) Battery and Life ER14250 li battery (replaceable) Store and use at room temperature for at least 18 months Report Form PDF and CSV format data report Interface USB2.0 interface, wireless interface (BLE4.2) Protecting Level IP65 Product Size Approx. 115x50x20mm / 4.5x2.0x0.8in Weight Approx. 152g / 5.4oz Recorder Operating Instructions (1) Open record Long press the start button for more than 3 seconds, until the green light is on and the screen "▶" or "WAIT" symbols The indicator lights up, indicating that the recorder successfully started recording. (2) Marks When the device is in the recording state, press and hold the start button for more than 3 seconds, and the screen will jumps to the "Marks" interface. The number of Marks items will increase by one, indicating that the marks is successful. (3) Stop recording Press and hold the stop button for more than 3 seconds until the red light is on and the "■" symbols on the screen is on, indicating The recorder stops recording. (4) Turn on or turn off for Bluetooth: Long press the start button and the stop button at the same time for more than 3s, until the red light flashes quickly and the screen The symbols is on or off, indicating that the recorder is on or off for Bluetooth. (5) Exit airplane mode: Long press the start button and the stop button at the same time for more than 3s, until the red light flashes quickly and the screen The symbols lights up and the icon disappears, indicating that you have exited the airplane mode. APP Operating Instructions: 1. Turn on the for Bluetooth function: Press and hold the start button and stop button of the recorder at the same time and hold for more than 3 seconds until the symbols appears on the LCD screen 2. Register the recorder equipment: Enter the device ID directly or scan the QR codes to get the device ID, then click search