While you should verify against the sticker on your specific unit, a common wiring schematic for the SHT 2000 is as follows:
Here’s what I recommend:
SHT-2000 Temperature and Humidity Controller: User Manual & Guide sht 2000 temperature controller manual
To enter this hidden level, you usually need to press and UP simultaneously for 5 seconds, or input a passcode (often 0000 or 0001 ). While you should verify against the sticker on