Visonic- Wireless security, wireless emergency systems, wireless property protection
Man-down MDT-122

Man-down MDT-122

Man-down PowerCode Transmitter

MDT-122 is a microprocessor-controlled "man-down" personal emergency transmitter designed for use by guards and security officers in prisons and institutions, or by people working alone in industrial and other high-risk facilities.


MDT-122 has Five Types of Events:

  • Distress – by depressing the two emergency buttons simultaneously.
  • Man-down – when the wearer falls down.
  • Pull-cord – when someone attempts to pull the transmitter off the wearer.
  • Test – for testing the transmitter.
  • Tamper – when an unauthorized person opens the transmitter.


When activated, the MDT-122 initiates a PowerCode transmission sequence of a 24-bit ID command code, which is selected from 16 million possible combinations and is therefore unique and virtually impossible to accidentally reproduce. A smart anti-collision algorithm prevents signal jamming by simultaneous transmission from multiple devices. A built-in selector enables automatic transmission of periodic supervision signals confirming system connectivity at all times.


This ergonomically designed "Man-Down" robust device is available in several optional frequencies in compliance with European, U.S. and other international standards. It is powered by a standard long-life Lithium battery, and features visible and transmitted low battery reporting when the battery needs to be replaced.


MDT-122 is supplied with various wearing accessories including a metal belt-clip, a lightweight water-resistant carry pouch / holster and a pull cord with cloth clip.


MDT-122 Features:

  • Automatic personal security "man-down" transmitter
  • Designed for guards and security officers in prisons and institutions
  • Suitable for people working alone in industrial and other high-risk facilities
  • Can be integrated into any alarm system
  • Attractive robust ergonomic design
  • Fully supervised (selectable)
  • Superior transmission range
  • Smart anti-collision algorithm supports multiple simultaneous transmissions
  • PowerCode ID factory-selected from 16 million possible code combinations
  • Long-life standard lithium battery
  • Visible and transmitted low battery indication
  • Accessories: lightweight weather-resistant carry pouch holster, metal belt clip and pull-cord with cloth clip (supplied)
  • Available in several optional frequencies in compliance with international standards
  • Compatible with PowerMax® and all Visonic PowerCode wireless panels
    and receivers
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