Water conditioning tester for aquarium, food processing, photography, school, laboratory, industrial and quality control. Check the condition of water filter. Meter with the probe, all in 1, easy operation.
Range:: 0 to 1999 uS.
Functions: Hold, Record ( max., min. ). IP-67 Water resistance, heavy duty.
Suppy: DC 1.5V battery ( UM-4, AAA ) x 4.