Milwaukee Waterproof
Portable pH Testers Meters

Model		pH55	pH56	pH58	pH600
Image
Range	pH	-2.0 to 16.0 pH	-2.0 to 16.0 pH	-2.00 to 16.00 pH	0.0 to 14.0 pH
	ORP	-	-	±1000 mV	-
	Temp.	-5.0 to 60.0°C / 23.0 to 140.0°F	-5.0 to 60.0°C / 23.0 to 140.0°F	-5.0 to 60.0°C / 23.0 to 140.0°F	-
Resolution	pH	0.1 pH	0.01 pH	0.01 pH	0.1 pH
	ORP	-	-	1 mV	-
	Temp.	0.1°C / 0.1°F	0.1°C / 0.1°F	0.1°C / 0.1°F	-
Accuracy (@°C)	pH	±0.1 pH	±0.05 pH	±0.05 pH	±0.1 pH
	ORP	-	-	±2 mV	-
	Temp.	±0.5°C / ±1°F	±0.5°C / ±1°F	±0.5°C / ±1°F	-
Typical EMC Deviation	pH	±0.1 pH	±0.02 pH	±0.02 pH	-
	ORP	-	-	±2 mV	-
	Temp.	±0.3°C / ±0.6°F	±0.3°C / ±0.6°F	±0.3°C / ±0.6°F	-
Calibration		Automatic, 1 or 2 points with 2 sets of memorized buffers (pH 4.01, 7.01, 10.01 or 4.01, 6.86, 9.18)	Automatic, 1 or 2 points with 2 sets of memorized buffers (pH 4.01, 7.01, 10.01 or 4.01, 6.86, 9.18)	Automatic, 1 or 2 points with 2 sets of memorized buffers (pH 4.01, 7.01, 10.01 or 4.01, 6.86, 9.18)	manual, 1 point
Environment		-5 to 50°C / 32 to 122°F; max RH 100%	-5 to 50°C / 32 to 122°F; max RH 100%	-5 to 50°C; max. RH 100	0 to 50°C / 32 to 122°F; max RH 95%