The HIOKI 3481-20 is a non-contact AC voltage detector that confirms the presence of live voltage from 100 V to 600 V without direct conductor contact. Passive design — no battery required.
The HIOKI 3481-20 voltage detector is a first-line safety tool for electrical technicians and engineers. Before working on any conductor, cable, or wiring installation, confirming whether a circuit is live or dead is a critical step in electrical safety practice. The 3481-20 detects AC voltage between 100 V and 600 V without any physical conductor contact, providing both audible and visual (LED) alerts when voltage is present.
Its passive design draws power from the detected voltage field, eliminating the need for batteries and ensuring the detector is always ready for use. The pen-type form factor fits comfortably in a shirt pocket alongside other electrical test instruments, making it a practical everyday safety companion for electricians and maintenance engineers.
HIOKI instruments are available from Hinco Instruments, Western Australia’s specialist supplier of test and measurement equipment. Our engineering team can assist with product selection, application guidance, and calibration services to support accurate and reliable live wire detection across mining, industrial, and electrical engineering applications throughout Perth and regional WA. Contact us for pricing and availability.
| Specification | Details |
|---|---|
| Measurement Type | Non-contact AC Voltage Detection |
| Detection Range | 100 V to 600 V AC |
| Frequency | 50/60 Hz |
| Indication | Audible buzzer and LED |
| Power Supply | Passive — no battery required |
| Weight | Approx. 35 g |
Download HIOKI 3481-20 Voltage Detector (PDF)
Download HIOKI 3481-20 Voltage Detector Manual (PDF)
Hinco Instruments supplies HIOKI test and measurement equipment across Perth and Western Australia. With over 70 years of instrumentation expertise, we also provide professional calibration services to support accurate and reliable measurement performance.
Hinco Instruments is an authorised supplier of HIOKI test and measurement equipment across Perth and Western Australia. We provide professional calibration services and ongoing support to keep your instruments performing to specification. Contact us for pricing and availability.
The HIOKI PD3129-10 Phase Detector confirms phase sequence and rotation direction in 3-phase systems from 200 V to 600 V AC. Passive design requires no battery — powered by the line under test.
Read more
The HIOKI 3280-10F is a slim-jaw AC clamp meter measuring current to 1,000 A and voltage to 600 V. Its narrow jaw profile makes it well suited to crowded distribution panels and switchboard environments.
Read more
The HIOKI 3288-20 True RMS AC/DC Clamp Meter measures up to 500 A on both AC and DC circuits, with inrush current capture for motor start-up analysis — ideal for solar, industrial, and mixed power systems.
Read more