Martindale VT28 Voltage Indicator
Martindale VT28 Voltage Indicator

Martindale VT28 Voltage Indicator

£0.00 ex. VAT
£0.00 inc. VAT

Martindale VT28 Voltage Indicator

  • 12 – 690V AC/DC
  • LED & LCD Voltage Display
  • Single pole phase test 90 – 690V
  • Phase rotation test 100 – 690V
  • Continuity – optical and acoustic indication
  • Auto power off
  • White LED torch light


The Martindale VT28 is a tough, compact two pole tester with both LCD and LED displays for measuring AC/DC voltages from 12V to 690V. Additional capabilities include continuity and phase rotation testing plus single pole voltage detection.

The large digit LCD display of the VT28 gives actual voltage readings in addition to the LED voltage ranges. The AC/DC voltage detection, continuity and phase rotation functions all have bright LED indication. Auto power-off ensures a long battery lifetime.

The voltage indicator conforms to the latest safety standards and includes removable probe caps for GS38 compliance. Additional safety features include a double insulated 1.2m cable with a black outer and contrasting inner core to give a visual warning of damage.

A built-in white LED torch makes it easy to use in low light environments.

Key features:

  • AC/DC voltage indication 12-690V
  • Digital LCD & LED displays
  • Continuity – LED & buzzer
  • Single pole phase test 90-690V
  • Phase rotation test 100-690V
  • White LED torch light
  • BS EN61243-3 & GS38 compliance

Available accessories include a soft carry case for just the tester, a matched proving unit and a combination carry case for both. The TC70 carry case enables the VT28 to be proved without having to unpack the PD690 and ensures the tester and proving unit are always to hand, making compliance with Electricity at Work Regulations straight forward.

The VT28, PD690 and TC70 carry case are available in a complete kit, the VT28PD.


Voltage range 10-690V DC/AC (16-400Hz)
LED indication ± 12, 24, 50, 120, 230, 400, 690V
LCD Display Range: 10V-690V (DC, 16Hz-400Hz)

Resolution: 0.1V

Accuracy ± (3% + 5 dgt)
Single pole phase test 100-690V AC RMS, 50-60Hz
Phase rotation test 120-400V AC RMS, 50-60Hz
Continuity range 0-500kΩ
GS 38 caps removable
Complies with BS EN 61243-3 2014
Cable length 1.2m
IP rating IP64
Features Auto power off
Torch light White LED
Supply 2 x 1.5V AAA
Weight 130g (with batteries)
Dimensions 205 x 67 x 27mm
Includes battery and manual