Table Top PH Meter with Red LED is provided with two point calibration facility for better stability and accurate readings. The PH Meter is available with bright red LED for better visibility even in `hard - to see` areas. The PH Meter is provided with electrode holder for added safety to the electrode. Table Top PH Meter with Red LED requires 230 VAC ± 10%, 50Hz power supply for operation and has 220 [W] X 90 [H] X175 [D] mm dimension.