Features Backlight and simple calibration Plant safe green LEDs Large easy to read displays With Self Locking function water resistant design Replaceable PH probe included With Automatic Temperature Compensation Specification Range 0 00 14 00PH 0 19 99mS cmResolution 0 01PH 0 01mS cmAccuracy ±0 1PH ±2 F STemperature Compensation 0 50°CPower Supply 6V DC power adaptorOperating Environment 0 50°CSize 88 x 55 x 22 mm Package included 1 x PHEC Conductivity with BNC port cover1 x EC Conductivity Electrode1 x PH Electrode2 x Hanging Bracket1 x iMetal Wire Holder2 x Belcro Tape1 x Mini Screwdriver1 x Power AdaptorNOTE The calibration fluid in the picture is not included Details pictures