A non-contact voltage tester tells you whether a conductor is live without touching it. The Modiewark does exactly that, and it has done so since the 1960s. It detects AC electric and electromagnetic fields from 110V to 750kV (dependent on the model), at a working distance of 200 to 300mm. For anyone working on overhead lines, underground networks, or switchboards, that distance matters. It’s the gap between a routine check and a serious incident.
This guide covers how the Modiewark works, where it’s used, and which model may suit your job.
Why a Non-Contact Voltage Tester Matters on Australian Sites
Testing for dead is a non-negotiable step before work begins on any isolated circuit. AS/NZS 4836, the standard for safe working on low-voltage electrical installations, puts voltage verification at the heart of safe isolation. However, the risk doesn’t stop at low voltage. On high-voltage networks, one wrong assumption about a “dead” line can be fatal.
A non-contact voltage tester confirms live or dead from a safe distance, before anything touches the conductor. Whilst not mandatory, it deserves serious consideration for a place in the kit of every field electrician, linesperson, and maintenance crew. Because it reads the field around a conductor rather than the conductor itself, it works where direct contact would be dangerous, impractical or impossible.
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How the Modiewark Non-Contact Voltage Tester Works
The Modiewark is primarily used as a non-contact detector, however, it can also be used as a contact voltage detector, where circumstances require and permit. It reads the alternating electric or electromagnetic field around a live conductor, not the conductor itself. That field grows stronger with voltage and weaker with earth shielding.
The sensor plate also allows directional checks. For example, you can check for low voltage while high voltage sits nearby. To pick up induced voltage on isolated conductors, increase the Modiewark’s sensitivity. As a guide, a single 240V live wire reads at about 100mm; a bunched cable with neutral and earth reads at around 50mm.
The operating notes above are general examples only. They should not replace site-specific safe work procedures or the guidance of a qualified electrician.
Where the Modiewark Is Used
The Modiewark earns its place the moment you can’t afford a wrong call on live or dead. Maintenance, repairs, and high-voltage emergency response all qualify. Professionals have relied on it since the early 1970s for live or dead checks on overhead power lines and underground supply at URD (underground residential distribution) test points.
It also works indoors. On the 240/110V setting, it traces voltage sources from distribution boards and helps locate cable faults. Common jobs include:
- Identifying live conductors
- Fault-finding in flexible cables
- Checking equipment grounding
- Servicing neon lighting
- Tracking live wires behind walls
- Phasing conductors
- Detecting high-frequency radiation
Choosing the Right Non-Contact Voltage Tester Model
The Modiewark comes in a range of voltage configurations, so the right model depends on the networks you work on. These are the models Volt customers buy most often:
- CIG – Selectable Voltages: OFF, 240V, 415V, 3.3kV, 6.6kV, 11kV, 22kV, 33kV, 66kV range – a broad distribution model covering low voltage right through to 66kV sub-transmission. A strong all-rounder for crews working across a wide span of distribution voltages.
- S7 – Selectable Voltages: OFF, 240V, 2kV, 11kV, 22kV, 33kV, 66kV range – a straightforward distribution tester spanning 240V up to 66kV. A solid all-rounder for utility and industrial work that doesn’t reach transmission voltages.
- S9 – Selectable Voltages: OFF, 240v, 2kV, 11kV, 22kV, 33kV, 66kV, 132kV, 330kV range – the high-voltage option, reaching all the way to 132kV and 330kV. Built for transmission linework where you’re dealing with the highest network voltages.
- SEAQ – Selectable Voltages: OFF, 240V, 3.3kV, 6.6kV, 11kV, 33kV, 66kV, 110kV, 275kV range – covers distribution through to 275kV transmission, including 110kV and 275kV settings. A strong pick for crews working across both distribution and sub-transmission.
- MWB – Selectable Voltages: OFF, 240V, 3.3kV, 6.6kV, 11kV, 22kV, 33kV range – a distribution-focused model topping out at 33kV. Ideal where the work stays within standard distribution voltages, with no need for transmission ranges.
These five cover the most common Australian distribution and transmission voltages. However, they’re only the start. Many more models exist, and custom units are available for non-standard requirements. You’ll find the full list under the More Information tab. If you need a custom product or a model not shown on the website, add the details in the Order Notes field at checkout.
Extending Range With an Insulating Hot Stick
For high-voltage work, distance is safety. The Modiewark attaches to an insulating stick using its sunrise (universal) fitting, which increases both range and the safe clearance you keep from the source. You secure it at the angle you need and work from a longer reach. A bayonet adapter is also available, and rescue kits or bags can be configured on request.
[IMAGE 3] modiewark-hot-stick-attachment.jpg – alt: “Modiewark non-contact voltage tester fitted to an insulating hot stick”
Summary
A reliable non-contact voltage tester is one of the simplest ways to keep field crews safe around live AC. The Modiewark has held that role since the 1960s, detecting live or dead from 110V to 750kV (dependent on the model) without contact. It works as both a proximity and a touch device, indoors and out, and the range spans nearly every voltage an electrician will meet. Match the model to your network, and you carry one tool for the whole job.
Explore the full Modiewark range at: https://voltsafety.com.au/product-category/meter/modiewark