Brifit 50g/0.001g Mini Electronic ScaleMilligram scale pocket jewellery scale with 20g calibration weight tweezers and weighing pan 6 units one touch tare LCD scale for laboratory/jewellery/medicine etc.

Question: How do I perform a calibration? Answer： ① Place the scale on a flat surface and turn the scale on. ②Press and hold the "mode" button until the display shows "cal". ③The display will then automatically flash "20.000g". Put on the 20g weight to complete the calibration.   Product specifications： Material: ABS + silicone + stainless steel scales LCD display with orange backlight Capacity: 50g / 1.7637oz / 1.6075ozt / 32.15dwt / 771.62gn / 250ct  Readability: 0.001g / 0.001oz / 0.0001ozt / 0.001dwt / 0.02gn / 0.005ct  Units: g / oz / ozt / dwt / gn / ct Tare range: full tare value Automatic switch-off: 180 seconds off Operating temperature: 10-30°C Power supply：AAA batteries * 2PCS (not included)