weight:  149g (including batteries and detachable cover)

and no chemicals

The controller provides a control range of 5

0 mS/cm with a 0

0 pH | Resolution: 0

Milwaukee MC810US MAX pH/TDS/Temp Monitor nutrient meter weight: 149g (including batteries andACCURATE. SIMPLE. RELIABLE. 24 7 PH TDS TEMP MONITORING. Why Guard when you can Monitor! The Milwaukee MC810 MAX pH TDS Temp Monitor lets you monitor your pH TDS Temp levels 24 7 automatically. COMMENTS FROM FIELD TESTING "I run this unit 24 7 and have not had any problems for the past two months. I can monitor 24 7, point a camera on it and connect to my phone." "Easy to calibrate." "Using this now, far less expensive than what my friends paid I