Entering negative number in 2-byte DEC field

I’m trying to set a temperature offset in my Fibaro 3-in-1 sesnor (FGMS-001 v3.3). I’m using parameter 66 which the manual says is set as a 2-byte decimal and wil accept values between -1000 and +1000. However, UI7 won’t allow me to enter “-6” responding that I must enter a two-byte value. How do I achieve this?

-006 ?

Just guessing and filling up the minimum 10 character limit…

C

You might try 16-bit two’s complement… 65530