Coolant Temp Sensor ISSUES

[lesvraissavent]

Having issue with Digital Temp Reading something and Analog Temp Gauge reading another thing…

First question, Digital says 220f Analog is mostly at 200f and will sometimes go up depending on hills or weather.
Does anyone know where digital is getting 220 and analog is getting 200? Aren’t both sensors reading the same thing? Can someone explain


Also second question, truck seems to be overheating after replacing the radiator, what can cause this? I notice it’s overheating when I’m doing 70 but when I’m doing 60-65 it’s right about normal temps I’ve seen the past 3 years.