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QS-7121-840 - Qolsys IQ 16-Zone Hardwired-to-Wireless Sensor Translator (for IQ Panel)

QS-7121-840 - Qolsys IQ 16-Zone Hardwired-to-Wireless Sensor Translator (for IQ Panel)
QS-7121-840 - Qolsys IQ 16-Zone Hardwired-to-Wireless Sensor Translator (for IQ Panel)
Item# QS-7121-840

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List Price: $145.28
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Qolsys QS7121-840 Hardwired 16:


The Qolsys QS7121-840 IQ Hardwire 16 is the perfect device to allow hardwired systems to leverage the powerful IQ Panel. This ground-breaking QS7121-840 translator allows up to 16 hardwired devices to be "taken over" from any existing control panel. The QS7121-840 is a "problem solver" that allows a seamless use of existing security system features (e.g. sirens, contacts, motion detectors, glassbreak detectors) with no additional equipment needed. The IQ Hardwire QS7121-840 automatic EOL (end-of-line) resistor learning spans from 1k-10k oHms ending the hours of wire splicing you'd normally encounter in an existing system. With a backup battery recharging circuit, 500 amp power supply and siren relay it's ideal for new construction as well. Please note, this hardwired translator is not for use with life safety devices, such as smoke or carbon monoxide (CO) detectors.

Product Features:

  • In-line resistor learning replaces outdated rubber-button hardwire system with IQ panel
  • LED lighted zones for ease of "learn-in" installation/troubleshooting
  • EOL resistor learning supports 1-10K Ohm resistors
  • Charging circuit for back-up battery, fully supervised with power outage recovery

Qolsys QS7121-840 Product Specifications:


  • Dimensions: 5.5" x 3.5" inches
  • Backup battery: 12VDC, 5AH Max (optional)
  • Input voltage: 16VDC Plug-In Transformer
  • Operating Temperature: 32°F to 122°F (0°C to 50°C)
  • Humidity: 95&per; RH Max
  • EOL Supervision: 1K to 10K Ohm
  • Input Zones: 16 (must have resistor)
  • Zone Type: N/O or N/C compatible
  • Auxiliary Voltage Output: 12VDC @ 500mA
  • Tamper Zone: Optional zone input for tamper
  • Relay Contact: 60VDC/1A Max drives siren or other device
  • Connects Using: Security RF 319.5MHz

Product Reviews

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the QS-7121-840 allowed me to use my existing hardwired sensors like door and window contacts with a qolsys iq panel wireless system to take advantage of the touch screen.

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