Bluelab Combo Meter with leap pH Probe - Features - 1) Compact handheld design for convenient use 2) Bright ,easy to read backlit display 3) Replaceable Bluelab ph probe (with BNC connection) 4) Simple 2-point ph calibration with a 30-day reminder 5) Read temperature in °C or °F 6) Measures conductivity in EC,CF,ppm 500 (TDS), or ppm 700 7) The conductivity probe is factory calibrated and ready to use immediately 8) KCI-filled probe cap to keep the ph probe hydrated                                      9) 2 meter/6.6 ft cables for measuring in hard to reach locations |