9903 Voltage/Continuity Tester, can measure AC voltage and DC voltage, continuity test, input impedance 400KΩ
The Voltage 9903 Voltage Continuity Tester is a handheld instrument for measuring AC and DC voltage up to 600 V and for testing continuity with an audible beep. It features a large 1999‑count LCD display that shows function, voltage, and a high‑voltage warning.
Key specifications include a measurement accuracy of ±2.9 % + 8 digits for AC and ±1.5 % + 2 digits for DC, a 400 kΩ input impedance, non‑contact voltage detection from 100 V to 600 V, and overload protection at 600 V. The device operates from –10 °C to +50 °C, weighs 312 g, and is powered by two AA batteries (NEDA 15F or IEC R6). It complies with EN61010‑1 safety standards and EN50081‑1/EN50082‑1 EMC regulations.
| AC Voltage Range | 600 V (50 Hz–400 Hz) |
|---|---|
| DC Voltage Range | 600 V |
| Continuity Test Audible Threshold | 0 ~ 10 kΩ, 2 kHz beep |
| Dimensions | 215 × 96.3 × 37.5 mm |
| Weight | 312 g |
| Display Count | 1999‑count LCD |
| Maximum Voltage to Earth Ground | 600 V AC / 600 V DC |
| Safety Standard | EN61010‑1:1993 (Category III) |
| Input Impedance | 400 kΩ |
| Non‑contact Voltage Sensitivity | 100 V – 600 V (50/60 Hz) |
| Battery Type | AA (2) – NEDA 15F or IEC R6 |
When the resistance is between 0 and 10 kΩ, the device emits a 2 kHz audible beep.
It is powered by two AA batteries, either NEDA 15F or IEC R6 types.
It complies with EN61010‑1:1993 for over‑voltage Category III use.