Apera Instruments GroStar GS4 5-in-1 pH/EC/PPM/Temp Combo Pen Reducers Have a fun and unique

Have a fun and unique experience inoculating your own Organic Gourmet Grow Bag with liquid culture

never re-exposed to the elements

This biodegradable liquid is made with 100% Castor Oil

Output: 1800 W

Early morning or late evening applications are best

Apera Instruments GroStar GS4 5-in-1 pH/EC/PPM/Temp Combo Pen Reducers Have a fun and uniqueLab grade instruments designed specifically for growers! The GS4 5 in 1 Combo Pen 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 to use design and fast calibration