pH Test Strips S/p® Plastic Clear Easy Read Indicator Packaging:Pack Versatile Dual-Head Design: Seamlessly switch

Versatile Dual-Head Design: Seamlessly switch between diaphragm and bell functions for comprehensive assessment of both high and low-frequency sounds

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pH Test Strips S/p® Plastic Clear Easy Read Indicator Packaging:Pack Versatile Dual-Head Design: Seamlessly switchClear, easy to read, sharply defined color changes Indicator dyes will not contaminate samples 6 x 5 mm indicator papers are sealed on a 6 x 85 mm plastic strip Strips are sufficiently long to avoid contact between fingers and test sample 3 Test Fields