Bluelab Combo Meter
Measure pH, conductivity and temperature on the go 
Measures pH, conductivity and temperature on the go
Brilliantly simple design that’s easy to use, clean and calibrate
Backlit display to capture every measurement with ease
Includes a pH Probe and Conductivity Probe to cover all your nutrient uptake fundamentals
2-metre cable for measuring in hard-to-reach locations
Customise scales to your preference - conductivity in EC, CF, PPM 500 (TDS) or PPM 700; temperature in °C or °F