product description:
Measuring range: (0-40) kPa, (0-300) mmHg
Guaranteed accuracy: plus or minus 3mmHg Actual factory: plus or minus 2mmHg Conversion: 1kPa = 7.5mmHg Simple operation, accurate data measurement and long service life.
E-mail ; sales@greatmade.com , info@greatmade.com , MSN : greatmade@hotmail.com , QQ ;102652882