The Mercator AC Voltage Test Plug allows you to detect incorrect or faulty wiring connections. Simply plug into any standard Australian / New Zealand 240V power outlet and the blue, green and red LED lightss will illuminate in various combinations to indicate correct or incorrect wiring connections.


  • Suits all standard Australian / New Zealand 240 volt power outlets and sockets
  • LED lights illuminate in various combinations to indicate correct or incorrect wiring
  • Safe and simple to use
  • Compact and durable construction
  • Fault indicator chart attached
  • Approved to Australian & New Zealand safety standards

All products must be installed by a licensed electrican. DIY electrical work is illegal and very dangerous.

Change of Mind
All products purchased from MJS Electrical Products & Supplies are backed by a thirty (30) day Peace of Mind Return Policy. All products returned must be in perfect unused condition, with all components, complete with original packaging. We will not allow returns on damaged or incomplete products. Proof of purchase is required. Should the product not be in original condition, please contact us before returning it as this may save you some unnecessary costs.

Damaged / Faulty Goods
If you find that the goods were damaged in transit or were faulty in some manner, please contact us within 24 hours of receiving the goods. We will organise for the return of the goods and arrange a credit towards your next purchase or send a replacement product. Customer will incur the cost of return postage and be credited the purchase price only. We recommend that you return your unwanted items using registered post or trackable courier. We can not be held responsible if returned items are lost in transit.

Product warranties are governed by the respective manufacturers and / or suppliers warranty terms and conditions (available on request). We will not be liable to you or any third party for any loss suffered due to product failure. We will process product warranty claims through the respective manufacturers and/or suppliers. All warranties are void if the product is not installed by a licensed electrician.

Model # MDET240
Barcode # 9312699203442
Brand Mercator
Shipping Weight 0.0650kg
Shipping Width 0.110m
Shipping Height 0.050m
Shipping Length 0.180m