Hanna Instruments GroChek pH/EC/TDS/C Portable Meter w/ Cal Check flawless finish Transfer Athena Perafoam into the

Transfer Athena Perafoam into the "Perafoam" tank on the Athena Reset Foamer

including mites

we made it possible for even the most inexperienced coco coir rookie to start experiencing “pro level” yields and buds

perfectly balanced construction and an ultra-lightweight

and maintain your pH and conductivity probes

Hanna Instruments GroChek pH/EC/TDS/C Portable Meter w/ Cal Check flawless finish Transfer Athena Perafoam into theThe HI9813 6 features the Hanna Instruments CAL Check that will allow the user to know when the probe needs to be calibrated or replaced. The meter operation is simplified with dedicated buttons for measurement modes to be displayed on the LCD and knobs for single point calibration of pH and EC. A variable TDS conversion factor ensures that your results are right the first time. The HI9813 6 portable meter features a large LCD that displays either pH,