Model Number       

                        HT-522       

                                    Product name       

                        rpm meter digital tachometer gauage       

                                    Display       

                        Five LCD Display       

                                    Accuracy       

                        0.02% or ±2 digital       

                                    Contact measurement range       

                        2~20000RPM       

                                    Non contact measurement range       

                        2~99999RPM       

                                    Counting measuring range       

                        1~99999RPM       

                                    Resolution       

                        0.01 or 1       

                                    Samping time       

                        0.5S (more than 120RPM)       

                                    Measuring distance       

                        500~600mm       

                                    Battery       

                        9V battery       

                                  Overview and Application: 

 This products is a handheld non-contact tachometer measuring instrument,mainly used for measuring the motor speed,linear velocity

 or frequency. Commonly used in motor,electric fan,paper making,plastic,chemical fiber,washing machines and cars field.

 Specification:

 Display: five LCD display;

 Accuracy:(0.02%)±2 digital;

 Contact measurement range:2~20,000RPM;

 Non-contact measurement range:2~99,999 RPM;

 Counting measuring range:1~99,999;

 Resolution:0.1 or 1;

 Sampling time:0.5s(more than 120 RPM);

 The measured distance:50~600mm;

 Power consumption:about 45ma;

 Battery:9v;

 Working temperature:0~50°C(32~122°F);

 Features:

 - Provides quick,accurate contact and non-contact measurement of the speed and rotating speed on the object surface.

 - Measurement types:rotational speed(RPM,RPM),counter rotating(REV),frequency(Hz),surface velocity

 and length.

 -Wide measuring range,high resolution.

 - The visible digital liquid crystal display and backlight display.

 - 30 data storage:10 max measuring,10 min measuring and 10 measuring instantaneous value.