description

model : pwa-301
* water conditioning, aquarium, food processing,
photography, school, laboratory, industrial and
quality control.
* check the condition of water filter.
* measurement : 0 to 1999 us.
* meter with the probe, all in 1, easy operation.
* hold, record ( max., min. ).
* ip-67 water resistance, heavy duty.
* dc 1.5v battery ( um-4, aaa ) x 4.