Apera GroStar GS4 Combo Pen

The Apera GroStar GS4 Combo Pen is the perfect tool for measuring pH, conductivity, and temperature with high accuracy and durability. Enjoy the convenience of a 2-year warranty for the instrument and 1-year warranty for the probe. Includes pH and EC calibration solutions, KCL storage solution, lanyard, and user manual. Compatible with all GroStar replacement probes for long-lasting use. Trust in the premium probe technologies and easy-to-use design for fast calibration adjustments. Don't waste money discarding the entire pen when the replaceable probe reaches its end of life.