NEUTRAL SUPPLY TESTER
Dewar Electronics M1121 NST Neutral and Supply Tester (Kit). It measures volts and impedance in relation to the connected Active, Neutral and reference Earth to determine a safe or unsafe condition. It ensures the incoming Active and Neutral power connections to a customer’s premises are correctly identified and safe to use before a power connection is made. Is a compact hand held unit housed in a lightweight heavy-duty case ( IP54 moisture and dust ingress rating). The M1121 is a self powered passive device (the power is taken directly from the users connections to the NST, so you don't have to worry about flat batteries or battery replacement). Power is taken directly from the user’s connections to the M1121. The front panel has 3 LED indicators and an LCD screen for status and measurement information. An audible alarm is fitted internally as a secondary indicator to indicate a pass at the end of the measurement cycle or a measurement failure. These indicators will show the safety status of the connection. The M1121 NST carries out automatic internal self checks to ensure correct functionality of the instrument. Neutral to Earth Voltage is 10V (FOR USE IN NSW) Kit consists of * 1 x M1121 NST * 1 x Dewar lead set * 1 x Hanging Clip * 1 x User Manual.