Hanna Total Chlorine Checker Reagents (25 Tests)-HI711-25 high temp pH sensor ✔ Electro-adsorptive tech — outperforms Power Supply 12 VDC ZAP-PITCHER1A STSOL250BL

✔ Electro-adsorptive tech — outperforms UV and hollow fiber alternatives

and temperature management Bluelab PowerPod (sold separately) for optimal plant health and confident growing

Fully customizable parameter settings

Quick fill lid

rugged and reliable testers in the market featuring dual level LCD readouts

Hanna Total Chlorine Checker Reagents (25 Tests) HI711 25 high temp pH sensor ✔ Electro adsorptive tech — outperforms Power Supply 12 VDC ZAP PITCHER1A STSOL250BL ✔ Electro adsorptive tech — outperforms UV and hollow fiber alternatives and temperature management Bluelab PowerPod (sold separately) for optimal plant health and confident growing