Calibration 2 Pack PH Digital Meter Buffer Powder

Product details 2 Packs pH Buffer Powder, Can Be Used To Make 2 x250ml pH Meter Calibration Solution, Compatible And User-friendly For The Calibration Of All pH Meter/Tester, Accurate and Easy to use for Long Period. Features: *2 packs ph calibration packets, no need to buy frequently. *Pre-measured exactly for accurate results. *longer shelf life(3 years) than liquid pH calibration solution (1 year) *Sealed with moisture-proof individual packets, convenient for reserve and carry. *2-year manufacturer guarantee. Easy to Use: 1.Prepare 2 x 250ml distilled water in container, and take out 1 set ph powder: 1 x pH 4.01, 1 x pH 6.86 2.Empty each packets in the 2 containers separately, you’ll get 2 x 250ml pH calibration solution kit. 3.Calibrate your pH meter with the pH solution. Package Includes: