Best PO4 test kit

[Maximus]

Well, I kinda like it and I kinda don't. I really don't like dispensing from the packets. there has to be a better way. It is nice that the reagent is from a fresh pack every time, and that is superior to the bottle and scoop method but I question if I get it all out.

I am thrilled to never have to squint at subtle shades of blue anymore, the digital readout is awesome.

I really really don't like, and this may be the deal breaker, that you the readout shuts off after 2 minutes and there doesn't seem to be a way to recover that reading if you miss that 2 minute window. It's about 50 cents and a 9 minute process lost if you miss a 2 minute window. There should be a beep. I'd pay another $7 for the unit if it had a beep

Ahh, looks like you bought the older one. The newer HI774 converts the number into ppm but more importantly, gives you more time before it times out. I believe it gives you an extra 2-3 minutes before it shuts off.

 

[five.five-six]

Ahh, looks like you bought the older one. The newer HI774 converts the number into ppm but more importantly, gives you more time before it times out. I believe it gives you an extra 2-3 minutes before it shuts off.

Is this the older one?

 

[Maximus]

Is this the older one?

This should be the "newer" one:

https://www.bulkreefsupply.com/phos...rimeter-hi774-hanna-checker-marine-water.html

 

[Beth perwein]

without a doubt
hanna ulr
ppb checker