I have a tri-meter in my big rez downstairs and it works really well, just make sure it compensates for temp. Mine is made by C.A.P
tinytoon Reviewed by tinytoon on . nutrient monitoring So were looking for some imput on a nutrient monitor like the tri meter ones that do ppm, ph, and temp... just wondering what you have what you like and dont like about it... any info would be great :D Thanks JoshDub Pics are at week 5 under 3 1000 watt hps Zoom in on pic 2... OH YUMMY Rating: 5