Off Canvas sidebar is empty


ActiveTester (CAT III)
Universal voltage tester for the entire electrical system of buildings

Description: Direct and alternating voltages can be determined by using the 2-pole voltage tester. The device also provides information on the polarity. The ActiveTester can be used in many different situations; it identifies the most important nominal voltages and can be operated without batteries.

  • Reliable and fast voltage tester with the most commonly used nominal voltages
  • Practical, automatic test of AC and DC voltage
  • Time-saving automatic range and function changeover
  • Efficient: one measuring instrument can be used for the entire building installation
  • Easy operation, no batteries required
  • Sturdy, ergonomically designed housing

  • Attribute083.020A ActiveTester
    TitleVoltage tester
    Direct voltage / alternating voltage
    Two-pole phase testing
    Operates in emergency mode without batteries
    Measured variableDirect voltage / alternating voltage
    Single-pole phase testing100 … 690V AC,
    50 … 60 Hz
    Overvoltage categoryCAT III – 400V
    DisplayLED display
    Protection classIP 64
    Temperature (working conditions)-10°C … 55°C

    Scope of delivery: 
  • ActiveTester
  • protective covers

  • Documentation:

    Product information sheet not available.

    Instructions part 2

    Electrical meters

    Voltage tester

    Industrial Quality (BlackLine) / Professional Technology (OrangeLine):

    Art.No.: 083.020A, GTIN (EAN): 4021563671151






    You can find here our
    current catalogs and flyers
    as an interactive ePaper:

    Health & Home


    Blätterkatalog Fachhandel

    Professional sales program

    Blätterkatalog Fachhandel

    Retail program



    CenterScanner Plus

    CenterScanner Flyer

    Here you can download our catalogs as PDF..

    is a competent partner around the world. In the planning, construction, modernization, renovation and restoration, Laserliner instruments are characterized by numerous technical innovations. The 4 year guarantee offers obvious benefits and compelling performance. Laserliner measuring technology brings more safety and reliability to building sites, the trade and the industry.

    We use cookies

    We use cookies on our website. Some of them are essential for the operation of the site, while others help us to improve this site and the user experience (tracking cookies). You can decide for yourself whether you want to allow cookies or not. Please note that if you reject them, you may not be able to use all the functionalities of the site.