Dear customer, no battery is needed. You can leave a note.

The company name,LOGO, phone number, advertising slogans and other promotional materials can be printed on the gifts. But the quantity needs to be over 150 units, dear friends. One unit can't be silk-screened. For specific silk-screen printing fees and plate fees, you can contact us directly for negotiation. Thank you, dear friends!

Regarding the error of the thermometer: After all, it is a household thermometer and hygrometer. In terms of accuracy, it definitely cannot compare with professional thermometers that cost hundreds or even thousands of yuan. We also advise buyers to think twice before purchasing.

   Product dimensions: Width 9.3cm, height 10.2cm, thickness 2.1cm

One box contains 150 pieces

Weight: 20/19 kilograms

Volume: 62.5 * 32.5 * 48cm

Features

· Temperature/humidity display
·℃/℉ temperature switching display
· Maximum/minimum temperature and humidity memory function
· 12/24-hour clock
· Daily alarm function
· Calendar display function

Parameter

Temperature measurement range: -50℃ to +70℃(+14℉ to +122℉)
Temperature measurement accuracy: ±3℃(1.8℉)
Temperature resolution: 0.1℃(0.1℉)
The humidity measurement range is from 10%RH to 99%RH
Humidity measurement accuracy: ±5%RH(40% to 80%)
Humidity resolution 1%
Storage conditions: -50℃ to +60℃, 20% to 80%
The external dimensions are 100*108*20mm

 

The temperature and humidity conditions in different positions of a room vary
1. Push open the battery door in the direction indicated on the back of the device, remove the battery separator, and then reinstall the battery door. The device is now ready for use.
2. Key functions: (MODE) Switch clock and alarm display modes/Set current time, alarm, 12 or 24-hour system, date (ADJ) Adjust the value of the set project; (MEMORY) Displays the highest/lowest temperature and humidity values in memory/clears the highest/lowest temperature and humidity values in memory. The (℃/ oF) switch temperature units to display in ℃ (Celsius) or oF (Fahrenheit). (RESET) Clear all Settings/memory values and return to the initial state.
3. In the initial state, hold down (MODE) for 1 second, and the minutes of the current time will start flashing. Press (ADJ) to adjust the minutes. Continuously press (MODE) to set "clock", "12/24", "month (M)", and "day (D)" respectively.
4. In the current clock MODE, (the two points between the clock and the minute flash once per second) switch the display to Alarm mode (the two points between the clock and the minute do not flash). At this time, pressing (ADJ) can switch the on/off of the "alarm" function/" hourly time announcement "function. Then hold (mode) for 2 seconds to set the alarm time. At the same time, when the "hourly polar time" function is activated, the () symbol appears.
5. In alarm mode, if no operation is performed, the current clock will automatically return after one minute. At this time, pressing (ADJ) once will switch to calendar display, and the current clock will automatically return after 3 seconds. Pressing the MAX/MIN button will display the maximum value of temperature/humidity since the last CLEAR (CLEAR).
Pressing (MEMORY) can display the maximum (MAX) and minimum (MIN) values of temperature/humidity in the MEMORY. Holding (MEMORY) for more than 2 seconds can clear the maximum/minimum values in the memory.