4pcs archery recurve bow limb line centerline adjust centerline adjustment module calibration detector shooting accessories
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Portable High-precision PH Test Pen PH Acidity Meter PH Water Quality Detection Instrument(Yellow)
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Practical mini accessories for photography multi-function wrench adjustment tool contains hexagon wrench beer opener screwdriver
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Описание:
1. Series: portable PH test pen 2. Working temperature: 0-60 degree C3. Measurement range: 0.00-14.00PH4. Resolution / accuracy: 0.01PH5. Battery: 2x 1.5V (LR44) button batteries 6. Calibration method: (4.01 / 6.86 / 9.18) three-point calibration 7. Scope of application: domestic water, food PH, aquarium water quality, aquaculture and other fields 8. Features: highly sensitive measuring probe, automatic temperature compensation function, three-point calibration function, automatic calibration function, easy to use, large screen display 9. Product accessories- 1xPH test pen- 1xPH 4.01 25 degree C PH Buffer Powder- 1xPH 6.86 25 degree C PH Buffer Powder- 1x user manual- 1x packaging box 10. Product size / weight: 15.5x 3.1x 1.7cm / 49g 11. Note: Some customers report that the product has data jumps, which is normal. (When using this product: After being placed in water, the data will always change slowly from the last decimal point, this is because the PH meter needs to adapt to the test environment. The data will be stable for about 1 minute when it is still, and this the final test data. In addition, if the water surface shakes, the data will also jump, so the test must ensure that the water surface is still.)