GroStar GS4 pH/EC/500ppm/700ppm/Temp (5-in-1) Combo Pen harvest-solutions • HPP™ High Performance Pump

• HPP™ High Performance Pump with glove-sized comfort grip handle

Maximum oxygenation

and temperature measurements from any angle and dual button operation streamlines the testing process for any user

IP67 waterproof• Powered by AAA batteries with auto off function• Automatic temperature compensation• 2-year warranty on pen

Move your lights back and forth across your growing area with a light mover

GroStar GS4 pH/EC/500ppm/700ppm/Temp (5-in-1) Combo Pen harvest-solutions • HPP™ High Performance PumpAI21040 GroStar GS4 pH EC 500ppm 700ppm & Temp (5 in 1) Combo Pen Lab grade instruments designed specifically for growers! Includes: pH 7 & pH 4 calibration solution (50ml bottle each), 2. 77 EC (50ml bottle) and KCL storage solution (10ml bottle), lanyard and user manual Measures pH, conductivity (EC and 500ppm 700ppm) and temperature (5 in 1) Premium probe technologies and materials ensure high accuracy and durability with minimal maintenance Easy