Reef Factory KH Keeper Plus vs DD KH manager

[taurus19]

Hi just wondering has anyone used these devices ? I’m thinking of buying one and I’m a bit sceptical on the accuracy and precision as I own a reef factory smart tester (which almost crashed my tank with its phosphate readings). From what I read the keeper plus is a big step from standard RF keeper and most posts compare the KH keeper and dd KH manger. The KH keeper plus costs the same as the KH manager, so would be good to get thoughts from anyone that has used both. I don’t want to dose anything based on the readings (already dose kalk) so let me know if they’re worth it/ long term view/review

 

[taurus19]

Would appreciate anyone’s help !

 

[taurus19]

As no replies someone should delete the post

 

[reef350]

I think with the offset the KH keeper plus is pretty accurate , I haven't used the KH manager though. I haven't had any issues with Smart tester with phosphate, only magnesium and I have 2 that both measure phosphate as a fallback. If you want to know with 100% accuracy KH within all ranges then KH keeper Plus probably isn't for you. As with all reef factory products you calibrate to your target and use the trend to bring it back to the target. I haven't seen any drift yet and its only been 6 months. Otherwise, I'm pretty satisfied and has saved me a few times.