12V Digital Clock Car LED Electronic Clock Time Alarm Voltage Thermometer 4modes
This product is a DIY digital tube electronic clock with time, temperature, and voltage display, especially suitable for 12V cars.
Features:
1: Ultra-small size, external dimensions: length=40.2mm width=12.8mm thickness ≈14mm
2: Set the three functions of time, temperature and voltage in one. The three functions can be switched at any time.
3: A total of 4 display modes. ①Only display time ②Only display temperature ③Only display voltage ④Alternate display of time, temperature and voltage (Note: In alternate display mode, you can select whether to display temperature or voltage through the dd option, and display time + temperature + voltage in dd:0 state .Display time + voltage in dd:1 state. Display time + temperature in dd:2 state).
4: With temperature error manual correction function, the setting range is -5~5℃.
5: With backup battery, continue to go during power-off time.
 
Electrical characteristics: (new model)
1: Input voltage 5～20V. Note that to use the voltmeter function, the input voltage is at least 7V or more
2: The range of the voltmeter is 7～20V, the error is ±0.1V, and the measured voltage is the input voltage. (It can also be used as a wide-range voltmeter, power supply is more convenient, pens such as notebook power supplies, etc. can be used, the highest voltage should not exceed 30V)
3: The temperature measurement range is changed to -50～130℃ (the original temperature display range is -9℃～60℃)
4: Working current is about 30MA
Increase the date function, increase the voltage error calibration function, and increase the temperature resolution to 0.1 degrees Celsius
 
Package includes:
1 x Digital Car Clock
 
Instructions:
1. Adjust time and temperature error correction
In normal use, press the "Left Button" and the "Min" will start flashing. At this time, press the "Right Button" and the "Min" will increase and cycle between 59 and 0. Adjust the "minute", and then press the "left button", the "hour" starts to flash, press the "right button" at this time, the "hour" increases and cycles between 23 and 0. After adjusting the "hour", press the "left button" again, AC: xx is displayed at this time, the value of xx is the temperature value to be corrected, and the unit is degree. Press the "right button" to adjust the temperature error correction value, the range is from -5°C to 5°C, a positive number increases, and a negative number decreases. After adjusting the temperature error correction, press the "left button" again to save all the data and return to the normal display state.
(Note: Some netizens reported that after working for a long time, the measured temperature was too high. That is because the voltage regulator circuit on the board heats up, and the board is also relatively small. The heat is transferred to the temperature measuring resistor, so that the measured temperature is too high. High, the solution is to connect the temperature measuring resistor with a piece of wire and let it leave the board.)
2. Switch display mode
In the non-adjusting state, press the "right button" to switch the display mode, from ①display only time → ②display only temperature → ③display voltage only → ④time, temperature and voltage alternate display. And save the last mode, even if the power is turned off and on again.
 
 
 
Note:
• (Important steps to check before you buy a product potentially containing button batteries)
• (How to properly secure button batteries in a product)
• (Storing button batteries out of reach of children and their safe disposal)
• (Knowing what to do in an emergency)
For more information, please visit the ACCC website.
https://www.productsafety.gov.au/news/button-batteries-tiny-batteries-big-danger#check-before-you-buy
 
 
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