Features:
1. Set the time, temperature, voltage, three functions in one
2. Manual error correction function with a temperature setting range -5� ~ 5�

Electrical Characteristics:
1. Input voltage 8 ~ 20V
2. Voltmeter range 8 ~ 20V, the measured voltage is the input voltage.
3. Temperature measurement ranges from -40� to 120�
4. Working current is about 30MA

How to use:
Keyboard plate has two touch keys: L (left), R (right);
1. Under normal use, touch the "L", "minute" starts flashing, then press the "R", "minute" increases between 00 to 59 cycles. After setting "minute" and then press the "L", "hour" starts flashing, it increases between 00 to 23 cycles. After setting "hour" and press "L" to adjust the date, then "date" starts flashing, press UP to increase between 1 to 31 cycles, then is month , and year , the same as hours.
2. Then press "L" , displayed 0.0V, this is voltmeter error adjustment, from -0.5-0.5V.
3. Then press "L" , displayed Ac: 0, this is thermometer error adjustment, from -5~5 Celsius
4. Then press "L" , dd:0 means show time + temperature + voltage, dd:1 means show time + temperature, dd:3 show means time + voltage.
5.Then press "L", dF:x mean cyclic display interval time, do not set dF:0, it will be black screen.
6. Then press "L", LL:x mean bright adjustment.
7.Then press "L", AL:x mean brightness automatic control settings, AL:0 mean not automatic control, AL:1 mean the brightness will automatic swtich 1 level in 19:00~6:00.