UT331+ Temperature Humidity Meter Digital Industrial Thermometer Hygrometer for Indoor Item Type: Digital Thermometer Model: UT331+ Material: ABS Purpose: measure indoor temperature and humidity Power supply: 4 x 1.5V AAA batteries (not included) Technical Parameters: Functions UT331+ Measuring Range Measuring Accuracy Temperature   -20.0℃-70.0℃ ±0.5℃ Dew Point Temperature   -78.2℃-70.0℃ ±1.0℃ Wet Bulb Temperature   -21.6℃-70.0℃ ±0.5℃ Humidity 0~99.9%RH 10%~90%RH,±3%RH; the rest is ±3.5%RH Resolution Temperature: 0.1℃ Humidity: 0.1%RH Temperature Test Switchable measurement temperature/dew point temperature/wet bulb temperature Manual Storage √ Automatic Storage Automatic interval storage can be turned on/off (default closed) Number of Storage Groups 299 groups 999 groups Data View View stored data Unit Settings Can be set, ℃/℉ switch Alarm Settings Alarm function can be turned on and off Maximum or Minimum Measurement √ Data Retention √ Software Export Data Upper computer software can view real-time data and export stored data Automatic Shut-Down Turn on/off the automatic shutdown function (default off) Real Time The real-time time of the system can be set Offset Setting Set temperature, dew point temperature, wet bulb temperature, humidity offset value Back Light Can be turned on/off (default is off) USB Powered Insert USB to switch B power supply, USB voltage: 5V How e: Startup and Shutdown: 1. Long press the yellow key of the meter to start; 2. In the power-on state, press and hold the yellow key of the meter to power off; 3. After setting the sleep time, no key operation within the set time will automatically shut down; 4. In order to accurately measure the temperature and humidity values, when the measured temperature and humidity changes greatly, it is recommended that the user place the product for a period of time before reading. Keep Displaying the Temperature and Humidity Value: 1. Press the HOLD key to fix the reading on the screen, and the word "HOLD" will appear on the screen; 2. Press HOLD again to turn off the "Hold" function. Turn On/Off the Backlight: Short press the backlight key to turn on the backlight, short press the backlight key again to turn off the backlight; long press the backlight key to turn on the alarm, at this time the alarm icon Q is displayed, and long press the backlight key again to turn off the alarm and the alarm icon disappears. After the alarm function is turned on, if an upper limit alarm occurs, the red backlight flashes at an interval of 500ms, if a lower limit alarm occurs, the blue backlight flashes at an interval of 500ms, and if an upper limit alarm occurs at the same time, the red backlight/blue backlight flashes alternately at an interval of 500ms. The flashing backlight will also light up the icon that caused the alarm. For example, this alarm is a temperature upper limit alarm, the temperature icon and upper limit icon (HI) will also flash while the red backlight flashes. View Maximum and Minimum Readings: 1. Short press Maximum/Minimum to enter the Maximum/Minimum view mode, and gradually view the maximum value (Maximum), minimum value (Mimimum), and normal test value (Maximum/Minimum flashes at intervals); 2. Long press Maximum/Minimum to exit Maximum/Minimum view mode. View Dew Point Temperature and Wet Bulb Temperature: Short press ENTER to view the dew point temperature/wet bulb temperature/normal temperature in turn. The dew point temperature screen displays "DEW POINT" and the wet bulb temperature screen displays "WETBULB". Use the offset value to adjust the instrument error: Use the temperature and humidity offset setting in the SETUP option to manually compensate the corresponding indication error. Data Access: STORE key to store data If the time interval is set to 00:00, it means manual storage. At this time, in the test interface, short press the STORE button to perform a single manual storage operation. At this time, the storage location will flash once, for example, if it displays L0G 001, it means there is 001 location. . UT331+ can store 299 groups of data, and UT332+ can store 999 groups of data. The recorded data is the data of the main display screen. If the time interval is not set to 00:00, it means automatic storage. At this time, in the test interface, short press the STORE key to execute a single manual storage operation, and long press the STORE key to execute the automatic storage function. At this time, the storage location (such as LOG 001) ) Will flicker at intervals, the meter will automatically save data in cycles at the set time interval, and the recorded data will be the data on the main display screen. RECALL Key to Query Stored Data: Short press the RECALL key to view the readings recorded in the memory, and then press RECALL to exit to view the records. 1. Sh