1. This product is a multifunctional tester with built-in high-precision voltmeter + resistance measuring instrument + diode tester + oscilloscope + thermal imager 2. Pen design, easy to use, easy to carry 3. Has thermal imaging function, which is very practical 4. This product can be mainly used in some quick maintenance scenarios 1. Oscilloscope: Frequency measure Accuracy:+/-1% Max One-key AUTO display waveform Sampling Rate:2MSa/s 400KHz Bandwidth Storage depth:4Kbit Trigger mode:Auto Trigger edge:Falling edge Coupling mode:DC Maximum test voltage:24V Vertical sensitivity:50 mV/-10 V/ Horizontal time base range:10us/-200ms/ 2. Voltage measure: Measure Accuracy:+/-1.5% or +/-0.15V Max Maximum Input - Voltage:24V Minimum Resolution:0.1V Voltage Alarm 3. Resistance measure Measure range:10Q-5M Measure Accuracy:+/-2% 4. Diode measure 5. On-Off measure 6. Thermal imager(With IR Version) Measure range:-40-300 Accuracy:+/-3(Middle point, 0-100) Display Middle, Max, Min temperature Resolution:32x24 Refresh rate:4HZ FOV:55x35 7. Other paremeters: 1.14inch 135x240 TFT Rechargeable Battery Product Size:160x27x26mm Power port:USB Type-C 5V/1A Operate humidity:less than equal 80% Operate temperature:0-50 Due to different batches, there may be differences in product appearance, color, and printed text, which will not affect the use. Colour:Black Material:ABS Package Contents: 1 x Multifunctional tester 1 x Test attachment 1 x charging cable Only 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.