Hannah test reagent question

[Saltfishlover]

Can I use low range reagents in an ultra low range hannah checker? Or do I have to buy the ultra low range reagents?

 

[Idoc]

Can I use low range reagents in an ultra low range hannah checker? Or do I have to buy the ultra low range reagents?

They use different reagents. The directions should say which to use...Hanna's use of numbers for test reagent names can be confusing.