my meter arrived today Bluelab EC Truncheon. im not quite sure what reading to go by help would be much apreciated
ppm
ecx 700
ppm
ecx 500
ec
cf
on not qiet sure what factor to go by on the ppms the 500 and 700 are totally different readings theres one for the us and one for europe
ppm
ecx 700
ppm
ecx 500
ec
cf
on not qiet sure what factor to go by on the ppms the 500 and 700 are totally different readings theres one for the us and one for europe