DUO PROBE

Apparatus for testing liquids, namely, apparatus for measuring liquids, dipsticks for liquids, gauging instruments for liquids, and electric and electronic liquid level control apparatus; Liquid level sensors, namely, liquid level indicators for waste water plants and water tanks; Liquid level sensors, namely, liquid level meters; Liquid level switches, namely, level switches for monitoring and controlling liquid levels in tanks and vessels; Liquid-level control apparatus and instruments, namely, electrical level controllers; Level indicators; Level sensors for measuring liquid levels; Liquid level indicators for water vessels; Liquid level monitoring apparatus in the nature of level gauges and liquid level sensors; Measuring probes for monitoring liquid levels in sewage plants and waste water plants; Apparatus for measuring pressure, namely, electronic pressure sensors