Dissolved Oxygen Portable Meters at a glance

Product	Measures	Memory	Optional AC Power	Real Time Clock	Waterproof/Dustproof (IP67)
DO 110 Meter	Dissolved oxygen, °C	Up to 100 sets with temperature	Yes	-	-
Acorn® series DO 6 meter	Dissolved oxygen, °C	none	na	n/a	no
Waterproof DO 300 Meter	Dissolved oxygen, °C, °F	Up to 50 sets with temperature	-	Yes	Yes
Waterproof DO 310 Meter	Dissolved oxygen, °C, °F	Up to 50 sets with temperature	-	Yes	Yes
Waterproof pH/DO 300 Meter	pH, DO, °F, °C	Up to 16 sets with temperature	-	-	Yes