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Ritron 4-Mile Range MURS Outdoor Call Box

Item #RI1000
Current Stock:
  • A heavy-duty industrial-grade outdoor call box on our longest range MURS 4 mile signal.*
  • Perfect for shops, warehouses, large properties or campuses.

  • Simple operation (limited user control), but does have programmable channels and features.

  • Weather-resistant, tamper-resistant and heavy duty for commercial application. 

  • Runs on batteries for up to a year or can be plugged into an outlet.

More about the 4 Mile Range MURS Outdoor Callbox

This outdoor intercom is the perfect intercom system for a business or work site. The rugged exterior box, tamper-resistant enclosure with stainless steel face plate, and long range make this system a good choice for communication in gated entrances, hospitals, receiving docks, warehouses and anywhere else that you may need to communicate with someone outside. This system uses the MURS (Multi-Use Radio Service) wireless frequencies, resulting in an amazing communication range of up to four miles!* Superb wireless communication between remote locations is now possible! The outdoor intercom call box runs on 6 D batteries. Alternatively, it can be plugged in using a 12V power adapter (not included).

This system has two communication modes. An energy-saving mode activates the intercom only when someone makes a call by pressing the Talk button. In this mode, the unit will turn itself off after a programmed amount of inactivity (up to 4 minutes). The continuous operation mode allows other MURS intercoms to communicate with the call box without this box initiating the communication. The second mode does use more power, so it is suggested that you connect the call box directly to a power source. Our call box is fully compatible with all of our MURS radios, including our base stations and hand-held radio walkie-talkies. When a visitor presses the Talk button, all intercom stations on the same channel are paged and any station can respond.

*Please Note:Although line-of-sight is not required, the maximum range is based on optimal conditions with minimal interference. Wireless range is affected by objects such as walls, trees, etc. Actual range may vary, depending on environment.

  • Range: Maximum 4 miles.
  • Channels: Programmable.
  • Weather: Weather resistant, made for outdoor use.
  • Modes: Push to talk, long-range communication, in commercial setting communicates to all intercoms on the same channel. Two power-saving mode options, automatic turn-off or interval sleep.
  • Sounds: Adjustable volume and gain.
  • Compatibility: MURS hand-held radios and base stations.
  • Mounting: Mounts on post or wall with mounting hardware (brackets and/or screws.)
  • Expandability: Can communicate with an unlimited number of MURS base stations and hand-held radios and can support any number of call boxes.
  • Frequency: 150-165 MHz.
  • Other: Busy signal to prevent disrupting a channel in use. PC programmable.
  • Warranty: 1 year Manufacturer's Warranty and tech support.
  • Power: 6 D batteries (low battery alert) or a 12V DC transformer (power failure alert.)
  • Dimensions: 11.5" x 9.5" x 4".
  • Includes: 1 outdoor callbox.

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Write your own product review
  1. From Alberta Canada 5 Star Review

    Posted by on 31st Jul 2014

    Works great, adds to the four hand held radios and two intercoms in our car wash.

  2. From Orlando, FL 5 Star Review

    Posted by on 31st Jul 2014

    Great addition to an already fantastic system! I was waiting for them to come out with a call box solution for the MURS system and it is great!