This circuit is an easy, reliable circuit for monitoring the temperature of your engine oil/block, hot water heater, or engine coolant.
Here:
https://www.google.bs/imgres?q=lm3914+thermistor+temperature+circuit&hl=en&client=firefox-a&hs=i2c&sa=X&rls=org.mozilla:en-US:official&biw=1272&bih=559&tbm=isch&prmd=imvns&tbnid=Tuynud0EgJ61zM:&imgrefurl=https://electronic-circuit-projects.blogspot.com/2009/03/motorcycle-temperature-gauge.html&docid=JQYwUKcENd-GjM&imgurl=https://2.bp.blogspot.com/_ZjDnZYlUxdE/Sb9ALLRoRDI/AAAAAAAAARo/oF9AaWh9jkY/s400/temperature.jpg&w=400&h=346&ei=1HY1T-byLIe2gwf0iL3oBQ&zoom=1&iact=hc&vpx=196&vpy=112&dur=2054&hovh=209&hovw=241&tx=146&ty=110&sig=106083777612127818367&page=5&tbnh=167&tbnw=193&start=66&ndsp=15&ved=1t:429,r:10,s:66
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Post time: Jul-06-2017