This document introduces the ADD51 automotive basic professional multimeter, which is a part of the Automotive Digital Diagnostic Tools series produced by Beijing Aideshengye Technology Co., Ltd. The product can measure voltage, resistance, diodes, continuity, capacitance, frequency, and duty cycle. It features data hold, lighting function, automatic range, and overload protection. The multimeter is suitable for testing fuel injectors, ignition coils, airflow meters, solenoid valves, high-voltage lines, and battery voltage.
The ADD51 is a handheld multimeter designed for automotive diagnostics. It provides voltage, resistance, diode, continuity, capacitance, frequency and duty‑cycle measurements, and includes features such as automatic ranging, overload protection, and a built‑in illumination lamp for use in dark spaces.
The manual describes how to select measurement functions, connect test leads, read values, and use accessories like the crocodile clip and cigarette‑lighter adapter. Technical parameters, dimensions, operating temperature, and power requirements are also listed. This manual is written in Chinese.
| DC Voltage Range | 400 V ±(0.8 %+4) |
|---|---|
| AC Voltage Range | 400 V ±(0.8 %+4) |
| Sampling Rate | 0.4 s per reading |
| Power Supply | 2 × 1.5 V AAA batteries |
Press the LIGHT button; the lamp lights up to illuminate the test area.
The device operates between 0 °C and 40 °C.
It offers eight different measurement functions.