led temperature and humidity display
Product Description
1、 Case dimension is about 600*400mm；
2、 Led high of character：100mm(4＂) red 6 digitals；
3、 Case：aluminum alloy
4、 Power wire： length 1.8M；
5、 RS232 or RS485 communication
Third：function requirement
1、 display temperature and humidity,can cummunication with computer,can save data
2、 When power cut,it has keep memory function。
Fourth：technical criteria
4、 Operational environment：temperature -19℃～80℃,relative humidity 0～95%；
5、 Power source：AC110-250V；according to every country standard voltage；
6、 Measure temperature range：-19℃～70℃；
7、 Measure temperature precision：error≤±1℃；
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