Bluetooth communication and recording function (CM2100B only)AC/DC current, AC/20000 count true RMS automatic range clamp meterStandard non-contact AC voltage sensing (NCV) functionVFC mode can filter high-frequency interference signals to accurate measurement data.AC frequency response up to 1000HzSmall size, easy to carryPlease Note:Due to different batches, there may be differences in product appearance, color and printing, which will not affect the useColour:BlueMaterial:PlasticPackage Contents:1 * Digital Tester1 * multimeter pen1 * Screwdriver1 * caseOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.