PBwel is the leading designer, manufacturer and supplier of quality electrical safety products.


The UNITAG LV voltage detector is a unipolar detector designed to test the presence of phase on insulated or bare LV conductors. The level of detection is indicated by a LED bar graph and a beeping sound whose speed increases as the device approaches a live source.

It is commonly used for detecting stray voltage on poles and crosses arms, conductor disconnection on overhead insulated LV conductors. UNITAG will not replace a standard “proving dead” device but is an ideal complement to a bipolar LV detector.


For LV distribution network>>CATIV 1000V
All weather condition>>IP65
HV network checking up to 24kV>>when used with insulating stick

This unipolar detector is designed to address two types of needs :

  • Checking electrical works which may be damaged, have a spurious level of safety or undetermined power source:
  • The safe approach of damaged cables or cabinets (storm, flood, digging, accident …)
  • Safe approach to the metalwork (cabinet, lighting pole, frame or under footpath connecting box…)
  • The safe approach of metal cable shielding when preparing a cable joint
  • Checking earth circuit
  • Checking presence of voltage at cable ends (MV or LV)
  • The safe approach of flooded electrical installation(under investigation, looking for feedback)

Checking LV insulated network (non-shielded) :

  • Checking voltage presence on LV overhead insulated or covered cables
  • Looking for discontinuity on LV overhead insulated or covered cables
  • Proving the switch position upon an LV overhead insulated or covered cable
  • Identifying out Phase and Neutral cable
Advantages :
  • Sound and light alert on voltage presence
  • UNITAG 1000V for use on networks
  • Can be used by hands or on an insulating stick
  • Indication of detection level
  • Tip length designed for access to LV panel and test point
  • Audible beeping speed is proportional to the level of detection
  • Visual indication of the level of detection on a bright LED bar graph
  • Automatic self-test, when switched on with green, LED indication
  • Multipurpose detector: street light, insulating twisted cables, rescue team, and firefighters

Technical Specifications :

Field of use :

  • Medium Voltage with the appropriate insulating stick
  • Detection by direct contact from 50 V
  • CAT IV 1000V
  • IP65
  • 2 x LR03 1.5 volt alkaline (AAA)
AC low voltage system:From 50 V up to 1000 V AC
Frequency: 50- 60 Hz
Temperature:15° C to + 45° C

Light 5 section telescopic stick:

  • Upper section insulating rod Ø 10 mm complying with IEC 60855
  • 4 sections of hollow tubes
  • Extended length = 2,15 m                Collapsed length= 0,84 m.
  • Delivered with a soft bag.
Part NumberType of useSize (mm)Weight (g)
UNITAGHFEHandheld45 x 39 x 227 mm160 g
UNITAGUFEHandheld + stick interface51 x 67 x 241 mm210 g
UNITAGUFXHandheld soft shell + telescopic stick51 x 67 x 1100 mm710 g

Contact us for the full technical details using the button below.


See our other products

PBwel is the leading designer, manufacturer and supplier of quality electrical safety products.

PBwel is a globally recognised designer, manufacturer and supplier of temporary portable earthing, voltage detectors, Buchholz relays and electrical safety products.

With a heritage spanning over eighty years, and world-class experience in equipment designed for the safe maintenance of power systems, PBwel provides customers with high-quality service, reliable solutions and technical expertise.


error: Content is protected !!

Product enquiry form

Would you like to be contacted by our team to arrange a free on-site demonstration and to find out more about this product?
This field is for validation purposes and should be left unchanged.

Or you can call the team using the below button