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3-prong ground plug
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Hanna Instruments pH Electrode for HI981401N & HI981404N KDF 3-prong ground plugThe Hanna Instruments PEI Plastic Body pH Electrode will give anybody a chance to test pH while still being affordable. The HI1286 brings the ability to test pH to any user at an affordable price. The polyetherimide (PEI) body protects against accidental breakage while the spherical glass tip is perfect for aqueous samples due to the large surface area. Suitable for samples from 0 to 80C (32 to 176F), this electrode is perfect for any general use
