15 Pack PH Calibration Powder, 5 Each for PH 4.00, PH 7.00 and PH 10.01 Calibration Buffer Powder, PH Tester Calibration Packets for PH Meters June_2023_update max Ampere: 15A operating voltage:

max Ampere: 15A operating voltage: 12V DC power please finish the installation by professionals or install the wiring harness under the guidance of professionals

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15 Pack PH Calibration Powder, 5 Each for PH 4.00, PH 7.00 and PH 10.01 Calibration Buffer Powder, PH Tester Calibration Packets for PH Meters June_2023_update max Ampere: 15A operating voltage:15 Pack PH Calibration Powder, 5 Each for PH 4. 00, PH 7. 00 and PH 10. 01 Calibration Buffer Powder, PH Tester Calibration Packets for PH Meters Product Features Save Money One packet of powder yields 250ml of calibration solution. The remaining unused pH calibration solution can be sealed storage for 15 days for future use Save Time you can get 15 PACK at once: 5 packets 4. 00 pH powder; 5 packets 7. 00 pH powder; 5 packets 10. 01 pH powder Easy to