EMOS VT‑320 Voltage Tester (Model M0012A)

The EMOS VT‑320 (M0012A) is a compact, two‑pole voltage tester designed for both AC and DC measurements in the range 12 V – 690 V. It is suitable for electricians, technicians and DIY users to quickly check live and non‑live circuits, determine phase sequence, polarity, and continuity. :contentReference[oaicite:1]{index=1}

Key Features

• Voltage range: AC & DC from 12 V to 690 V. :contentReference[oaicite:2]{index=2}
• Polarity indication: Yes—can detect positive/negative in DC circuits. :contentReference[oaicite:3]{index=3}
• Phase sequence & phase identification: Able to detect phase conductor and sequence in three‑phase systems. :contentReference[oaicite:4]{index=4}
• Continuity / circuit connection check: Yes, includes continuity measurement. :contentReference[oaicite:5]{index=5}
• Signalization: Both optical (LED) and acoustic (beeper) alerts. :contentReference[oaicite:6]{index=6}
• Power Supply: Supplied with a 9 V battery (included) for internal electronics. :contentReference[oaicite:7]{index=7}
• Safety category: Meets CAT III up to 690 V. :contentReference[oaicite:8]{index=8}

Specifications (Selected)

• Model / Part No: M0012A (Order code) :contentReference[oaicite:9]{index=9}
• AC & DC voltage: 12–690 V :contentReference[oaicite:10]{index=10}
• Frequency range: 0–60 Hz for AC measurement. :contentReference[oaicite:11]{index=11}
• Measurement levels: 12 V, 24 V, 50 V, 120 V, 230 V, 400 V, 690 V (pre‑set levels) :contentReference[oaicite:12]{index=12}
• Non‑contact measurement: No (requires direct probe contact) :contentReference[oaicite:13]{index=13}

Why Choose the VT‑320?

• Wide measurement range covers both low‑voltage (12/24 V) systems and standard mains up to 690 V—making it versatile for automotive, industrial and domestic applications.
• Simple, intuitive design: just connect the probes and you’ll get immediate optical/acoustic feedback—great for fast checks and safety verification.
• Includes advanced features such as phase‑sequence detection and polarity indication, which many basic testers lack.

Usage & Safety Tips

• Although the range is wide, always **verify** the test category and the condition of your probes before working on high‑voltage systems—wear appropriate PPE and follow safe practices.
• The tester is **not** non‑contact: probes must be inserted appropriately. Do *not* rely on it for detecting hidden live conductors without contact. :contentReference[oaicite:14]{index=14}
• For continuity tests or live system checks, ensure the battery (9 V) is installed and in good condition for reliable indication.
• While the device indicates presence of voltage/polarity/phase, it may *not* measure with the precision of a full digital multimeter. Use accordingly for quick verification tasks.

Keywords

EMOS VT‑320, M0012A voltage tester, AC DC 12‑690 V tester, phase sequence tester, continuity detector, CAT III 690 V tester