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Neutral Supply Tester NST M1120-V2 (VIC, SA, NT, QLD, TAS) – Dewar

SKU: MET-D-M1120-V2 Categories: ,

The Dewar Neutral Supply Tester (NST) measures volts, impedance and polarity in relation to the electrical grid supplies connected Active, Neutral and Earth to determine a safe or unsafe condition for industrial, commercial and domestic applications. Suitable for use in Victoria, South Australia, Northern Territory, Queensland and Tasmania.

Key Features:

  • Size: 11cm width x 18.5cm height x 4.5cm depth
  • Weight: 431.5g
  • Powered by the users connection to the NST, no need to worry about flat batteries or battery replacements
  • Auto lock out for instrument protection if internal reference resistor over heats during repeated testing
  • High strength plastic enclosure with shatterproof decal that withstands 6M drop
  • 3 status LED’s that state Power, Pass and Fail to determine test outcome
  • Microprocessor controlled for highest accuracy & reliability
  • Withstands accidental connection across 3 phases at 415V
  • Designed and manufactured in Melbourne, Australia
  • Audible alarm for when the unit has failed a test
  • Testing carried out over 4 Full 50Hz cycles
  • Easy to read 2 line LCD displays results
  • 3 x 1.5mm double insulated flexible test probes
  • 1 x Crocodile clip 32mm Jaw
  • 1 x 1kV Probe CAT IV


  • AS 61010-1 CAT IV 600V
  • IEC/EN 61326-1:2013
  • AS 4741-2010


Neutral Supply Tester NST M1121-V2-B (NSW, ACT) – Dewar
Determines safe or unsafe conditions for industrial, commercial and domestic applications in NSW and ACT.