Waterproof pH and TDS Testers Both waterproof testers are microprocessor-based for fast, stable response with easy pushbutton operation and calibration. These highly durable units are waterproof, dustproof and they float! Waterproof Tester 1: Accurate to �0.2 pH and calibrates to either pH 4.0; 7.0 or 10.0 Waterproof Tester 2: Accurate to �0.1 pH, calibrates up to 3 points (4.0; 7.0 or 10.0) and is equipped with automatic temperature compensation. Availability: Usually ships in 2-3 business days. Waterproof pH Tester PTW500

Availability: Usually ships in 2-3 business days. Waterproof Tester 2 Accurate to �0.1 pH, calibrates up to 3 points (4.0; 7.0 or 10.0) and is equipped with automatic temperature compensation PTW550

INTERIOR GARDENS 2727 Lyndale Ave. S. Minneapolis, MN. 55408 Order Line: 1-800-498-4178 Office: 1-612-870-9077 Fax: 1-612-870-8901 [email protected]