Im running into a issue where i set my bed temp to 80 and the display says 80. but when i measure the bed temp with two different thermometers/readers it says around 55, i have to compensate by setting it to 110 to hit close to 80

I have marlin set to use

#define TEMP_SENSOR_BED 1
// 1 is 100k thermistor - best choice for EPCOS 100k (4.7k pullup)

I assume this is what came with my printer