im not sure, i dont have a meter, how do you make the humidity go up or down?
you go to target or walmart and buy a 20.00 humidifier and turn it on high! You have to have very high humidity or clones won't make it. When I clone, I run my clones under a 7" dome for 10 days at 100% humidity. I run a total "oakie" rigged hose from the humidifier into the dome - this keeps the dome at 100%, (you can see the "white smoke" inside the dome)... after 10 days or so, I take the dome off for 20 minutes.... if the clones are still standing and not droopy, I'm good - - I leave the dome off for another 2 hours... if still no droopy, my clones are rooted and then I start checking under the rockwool cubes... then you can lower your humidity to about 60-80%. This is just my way, many different people have many other ways that work too. But - one thing we all have in common is that you have to have HIGH humidity for clones, or your loss rate will be high. Good luck casey.
Edit - if you don't have a dome, and are growing in a cabinet - that's okay, just set a humidifier inside the cabinet and turn it on. A hygrometer will measure humidity.... here's a pic of mine (61% humidity - my plants are 31 days into veg), hygrometer costs about 25 bucks at the hydro shop.