It is an accurate secondary instrument with LED digital display. it is applicable to determine Na+ value of water solution in departments of petroleum,chemical,medicine-produce ect. Automatic temp.Com

Kelilong ORP controller offers continuous and accurate  MV reading. It also offers alarm when MV reading is  out&nb

Kelilong pH controller offers continuous and accurate  pH reading. It also offers alarm when pH reading is  out&nbs

Digital pH-ORP controller with large size LED display  for  easy reading.    High input impedance avoid measur

Kelilong pH controller offers continuous and accurate  pH reading. It also offers alarm when pH reading is  out&nbs

Dual monitoring of pH and ORP in large LED display and  single control of either pH or ORP. Highly accura

Kelilong ORP controller offers continuous and accurate    MV reading. It also offers alarm when MV reading is&

Kelilong EC controller offers continuous and accurate    EC reading. It also offers alarm when EC reading is&n

The electronic level controller with 2 sensors will automate aquarium water top off. Since safety is our number one concern, we include two float switch sensors with our electronic water level control