help with ph ec testers

[sidefx]

hey am looking to upgrade to a digital reader and would like some help.

i dont know which to buy, the best ive found on ebay are the,

HANNA HI 98129 - pH/EC/TDS/°C
this has a range of EC ** 0 to 3999 µS/cm
PH ** 0.00 to 14.00 pH
TDS ** 0 to 2000 ppm

HANNA HI 98130 - pH/EC/TDS/°C
this has a range of EC ** 0 to 20.00 mS/cm
PH ** 0.00 to 14.00 pH
TDS ** 0 to 10.00 ppt

The seller wont tell me straight out dunno.

is it really much better to make the switch to an ALL IN ONE UNIT.
THANKS 4 Z HELP PSYCHEDELIC COMMUNITY

 

[darkwolfunseen]

I had the 98129, more then enough for me.

Make sure to get a calibration kit at some point as well.

 

[nilpotente]

complicated