apex unit PM1 new gray version and pH probe double junction apex screen

[KoiTang]

pm1 newer Gray Version 1 month old$65 shipped
pH probe double junction 1 months old $50 shipped

no longer need. both are working great!

Apex 2016 version. 2 months old still pretty new. $660 shipped
Apex Silver Screen 2 month old $85 shipped

 

[sromero287]

PM’ed

 

[KoiTang]

apex 2016 sold
apex silver screen pending
pm1 still available
ph probe sold

 

[Nano man]

Pm1 still there?

 

[KoiTang]

PM1 sold