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KEY FEATURES
- ✔COMPATIBILITY AND USER-FRIENDLY. Ideal for the calibration of all pH meter/tester, and it come with a friendly guide, no need worry even if you are a new user.
- ✔TOTAL 3 PACKS. The packets including pH 4.01, 6.86 buffer powder each for 3 x 250ml pH buffer calibration solution.
- ✔ACCURATE. The pH calibration powder are produced with premium quality material under strict conditions, and pre-measured exactly to ensure accuracy.
- ✔EASY TO USE. No need measure, just mix individual pack with 250ml distilled water separately, you’ll get standard PH buffer solution kit.
- ✔LONG TERM USE. sealed by durable moisture-proof individual packets, 3 years shelf life.
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