Dt-2234C+ Digital Optical Tachometer C5 audio and videos base on

audio and videos base on DLNA protocol

simply attach both lenses to the case provided

- Connect VGA out-put port of the BOX with the PC's monitor by a VGA cable

These screen protector is the only screen protector you can buy  that is not only scratch resistant

This fantastic neck support can improve the blood circulation of the neck and shoulder area

Dt-2234C+ Digital Optical Tachometer C5 audio and videos base onThe DT 2234C+ is a hand held digital optical tachometer for non contact measurement of rotational speed (RPM) or frequency. Each unit comes with its own calibration certificate, which reports the measurement error of the unit at 2 points across its range. Large LCD display Automatic Min Max Memory Soft carrying case & 200mm of reflective marking tape Display: 5 digits, 18mm high Range: 2. 5 99,999 RPM Resolution: 0. 1 RPM (2. 5 999. 9 RPM), 1 RPM