Specification:  Product Name: Intelligent incubation temperature controller.  Temperature measurement range: -30 ~ 110 degree.  Temperature measurement accuracy: 0.1.  Temperature control range: -9.9 ~ 99.9 degree.  Temperature control accuracy: 0.1.  Temperature probe: 1 m probe.  Power supply voltage: DC12V/24V.  Applicable environment: - 15 ~ 55/ 20% ~ 85% RH.  Output type: 6A Relay direct output.  Dimension: 105* 70mm.  Embedded size: 85*60mm.  Installation hole distance: 95mm.  Product weight: 71g.     Package included:  1 x Intelligent incubation temperature controller.     Instructions for use:  Long press the setting button for 3 seconds to enter the menu P1 P2 P3 P4.  P1 hysteresis setting:  1. Long press the setting button for more than 3s to display the P1 hysteresis setting.  2. Shortly press the set button to display the hysteresis value, the factory value is 0.2.  (The setting range of hysteresis is 0.1~30) 3. Press the heating/decreasing key to adjust the value.  P2 temperature calibration:  1. Long press the setting key for more than 3 seconds to display P1, press the heating/decreasing key to switch to P2 temperature calibration.  2. Shortly press the SET button to display the calibration value, the factory value 0.0V(calibration range-9.9~9.9V) 3. Press the heating/decreasing key to adjust the value.  P3 delay start:  1. Long press the setting button for more than 3s to display P1, press the heating/decreasing button to switch to P3 delayed start.  2. Shortly press the setting button to display the delayed start value, the factory value is 0. (setting range 0~10 minutes) 3. Press the heating key to adjust the value.  4. After the setting is completed, the thermostat will delay after reaching the starting temperature, and then start again according to the set time.  P4 high temperature warning:  1. Long press the setting key for more than 3 seconds to display P1, and press the heating/decreasing key to switch to P4 high temperature alarm.  2. Shortly press the setter key again to display ON (function on)/OFF (function off).  3. Press the heating/decreasing key to adjust to ON, shortly press the setter key again to display the high temperature alarm value.  (factory value 110V) 4. Press the heating/decreasing key to adjust the high temperature alarm value.  5. After the setting is completed, the thermostat will emit an alarm sound when the temperature reaches the alarm value.  I want to control the hatching temperature of chickens at 37.5~38 degree, how to set it? 1. Set the stop temperature: short press the set button and the screen number flashes, press the heating/decreasing button to adjust the value to 38 degree.  2. Set the hysteresis: long press the setting key for more than 3s, the screen displays P1, then short press the setting key. The displayed value is the current hysteresis value, and the difference between 37.5-38 is 0.5. Press the heating/decreasing key to adjust the value to 0.5.  3. After the setting is completed, the thermostat will start the heating equipment at 37.5??C for heating, and stop when the temperature rises to 38 degree, and it will continue to cycle.    I actually measured a temperature of 37.8, and the thermostat showed 37.6, how to calibrate it? 1.