GroStar® GS4 pH/EC/500ppm/700ppm/Temp (5-in-1) Combo Pen

Apera GroStar® Series GS4 5-in-1 Combo Pen (Gen II) is a premium tester designed specifically for growers to perform professional measurements of pH, EC, 500ppm, 700ppm, and temperature. GroStar's intelligent and grower-friendly design reduces the guesswork so you can easily manage the success of your crops.

Features:

• The pH/EC combo probe is built with a double-junction pH sensor and titanium conductivity sensor, ensuring quick and reliable readings in the long run.
• Easy to use design and quick 2-point automatic calibration with electrode condition display.
• 3-Color backlit LCD screen gives you clear readings in different modes even in dark environment.
• TruRead measurement mode available for taking measurements in multiple locations and automatically displaying the average, minimum, and maximum values of all the readings.
• The probe is replaceable, so you don't have to discard the entire pen when the probe reaches its end of life.
• ORP measurement available with the installation of GS5-E ORP probe (sold separately)

What's in the kit?

• 2-year warranty (instrument)
• 1-year warranty (probe)
• pH 7, pH 4, 2.77 EC calibration solution (50ml bottle each)
• 3M KCL storage solution (10ml bottle)
• Lanyard
• User manual

Technical Specifications: