Hanna HI98130 Waterproof pH EC TDS Tester (High Range) EPA 25B Exempt the Grodan Gro-Block Improved Medium

the Grodan Gro-Block Improved Medium 4" GR7

or refill to manage

delivering a complete

This compact and powerful device is engineered to meet the demands of both small and large-scale cultivators who require precise

Hanna HI98130 Waterproof pH EC TDS Tester (High Range) EPA 25B Exempt the Grodan Gro-Block Improved MediumHanna HI98130 pH EC TDS Tester for Hydroponics The Hanna HI98130 is a waterproof, floating combo meter that measures pH, high range EC TDS (0. 0020. 00 mS cm EC; 0. 0010. 00 ppt TDS), and temperature with automatic temperature compensation for accurate readings in any grow environment. Its replaceable pH electrode with extendable cloth junction extends sensor life and reduces total ownership cost. A non fouling graphite EC TDS probe resists salt build