All Martindale Products

Martindale VT25 Voltage Indicator

Reward Points (?)

Logged in, worth £0.37, read more.

£45.00 £37.50
5 in Stock
Advice & Support
Price Match Request

A combination testing device, Martindale VT25 can be used to evaluate levels of voltage, continuity and also gives indication of three phase rotation.

The Martindale VT25 is a dual pole tester and uses LED indication to showcase measurements when applied to the measurement point. It can be used to measure both AC and DC voltage levels up to 690V, includes a built-in continuity test with audible and visual indication and also includes resistance levels of up to 500kΩ.

Working in darkened conditions? The VT25 includes a built-in LED torch, allowing the user to easily see where connection points are in darkened panels or other similar applications.

This voltage indicator is CAT IV 600V and CAT III 690V rated.

Martindale VT25 Voltage Indicator Key Features

  • LED light indicators show level of voltage up to 690V AC/DC
  • Continuity test with audible and visual indicators up to 500kΩ
  • Three-phase rotation indication
  • Dual pole tester
  • Poles easily clip together for storage
  • Built-in torch allows use in darkened conditions

Full List of Products Included

  • Martindale VT25 Voltage Indicator
  • Batteries
  • Instructions

Martindale VT25 Technical Specifications

Voltage Indicator  
Maximum Working Voltage 690V DC & AC rms
Nominal Voltage Threshold Indications 12, 24, 50, 120,
230, 400, 690V AC/DC
Nominal Voltage Threshold Tolerance Conforms to BS
Polarity Indication from 12V DC/AC rms
Range Detection Automatic
Response Time <1s at 1005 of each nominal voltage
Frequency Range DC, 16 to 400Hz
Test Current <3.5mA at 690V
Duty Ratio 30s ON (operated) / 240s OFF (recovery)
Single Pole Phase Test  
Voltage Range 100 to 690V AC RMS
Frequency Range 50 to 60Hz
Phase Rotation Test  
Voltage Range 120 to 400V AC RMS (Phase to Earth)
Frequency Range 50 to 60Hz
Resistance Range 0 to 500kΩ + 50%
Overvoltage Protection 690V DC or AC rms
Operating Temperature -10°C to 55°C
Storage Temperature -20°C to 70°C, non condensing
Humidity Max 85% R.H.
Altitude Up to 2000m
Power 2 x 1.5V, AAA alkaline batteries (IEC LR03,
Battery Consumption 80mA approx.
Dimensions 205(L) x 67(W) x 27(D) mm
Weight 130g approx
Conformity BS EN61243-3:2010 CAT IV 300V, CAT
III 600V
Class II, Double Insulation
Pollution Degree 2
IP Rating IP64
Conformity BS EN61326-1
Accessories related to this product:
1 Reviews
Overall Rating

Write a Review

Write Your Own Review
You're reviewing:Martindale VT25 Voltage Indicator
Your Rating
Additional Information
Manufacturer Part Code MARVT25

Subscribe to our Newsletter

International Enquiry