I HAAVE A HOME MADE INCUBATOR AND LOOKS LIKE ALL IS GOING WELL. BUT I JUST WOULD LIKE TO BE ON THE SAFE SIDE,VERY NEW TO ME. ALL I HAVE IS A 25WATT BULB AND A HYDROMETER AND A THERMOMETER AND A WET CLOTH. PLEASE HELP
What are you asking?
The hygrometer (with a "g"), must be in the chamber to measure the relative humidity within. It doesn't have to stay in there, but it must remain long enough to stabilize.
It should be placed so it measures the conditions felt by the eggs themselves.