Motorola RDX Series Two-Way Radio - RDU4100

Brand:   Motorola
Frequency, Power UHF, 4 Watt
Channels 10
Range Indoors (up to) 30 floors
Range in Warehouse (up to) 350,000 sq. ft.
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Motorola RDX Series Two-Way Radio - RDU4100

Rugged, High-Powered Radios - Great for everyday industrial use and abuse

Motorola offers a powerful tool for your business in its RDX Series of on-site two-way business radios. Affordable and easy-to-use, these radios enhance employee efficiency and overall profitability with their outstanding performance. With a high-level of audio quality, durability, and dependability, the RDX Series will keep your workplace running smoothly, no matter if it’s in a school setting, construction zone, or retail store. Discover what many already know—Motorola’s RDX Series gets the job done.

The four- and five-watt RDX Series radios have the power to communicate in large and challenging workplace environments. They’re proven rugged enough to handle the harsh conditions they’ll be exposed to in daily use and meet Military 810 C,D,E and F and IP54/55 specifications. The RDU4100 operates on 89 UHF business-exclusive frequencies with 219 codes ensure a clear signal.

Other features include:

  • Exceptional Audio Quality – the RDX Series features up to 2000 mW of audio output, speaker magnetic field reduction, wind noise reduction
  • Long Battery Life – ultra high capacity Li-ion battery for up to 18 hrs. per charge
  • Channel Announcements – audibly announces the channel selected; Repeater Capability – compatible with repeaters which help provide a much greater coverage
  • Scan, manager lock, cloning capability, power select, VOX, and more.

Compatibility – the RDX Series is compatible with the Motorola RM Series, CLS Series and is custom programmable to match the frequencies and codes of other radios.

Each RDX two-way radio includes: 2400 mAh 3.7V Lithium Ion rechargeable battery, drop-in charging tray w/ power adapter, 3.5” spring clip, and quick reference guide.

Model RDU4100


Standard Features:

  • Range up to 350,000 sq. ft. or 30 floors indoors
  • 4 Watts of power
  • 10 pre-programmed channels to communicate with separate work groups
  • 89 UHF business-exclusive frequencies and 219 interference eliminator codes
  • Custom programmable to match other business band radios
  • Repeater Capability
  • Exceptional Audio Quality – 2000 mW of audio output, speaker magnetic field reduction, wind-noise reduction and improved RF specifications
  • 3 Voice Scramble settings to reduce eavesdropping
  • Cloning compatible – Setting of one radio can be copied to another (requires optional multi-unit charger or cloning cable)
  • VOX – Hands-Free use with audio accessory
  • 3 different Call Tones – grab the attention of the people you need to reach
  • 2-pin accessory plug (compatible with CLS, XTN & AX series)
  • AA Battery Compatible (requires 5 AA cells & alkaline battery frame accessory)
  • Size: 4.5 in. H x 2.2 in. W x 1.6 in. D
  • Weight: 10.3 ounces (with standard battery)

Talk Time Features:

  • Li-ion Rechargeable Battery Life – Up to 18 hours per charge with standard battery

What's Included:

  • Motorola RDX Series two-way radio RDU4100
  • 2400 mAh Li-ion Rechargeable Battery
  • 10-Hour Plug-In Charger
  • Spring loaded belt clip
  • Antenna
  • User’s Guide
  • Accessory Brochure
  • Warranty Card


Model Number RDU4100
Frequency, Power UHF, 4 Watt
# of Channels 10
Range Indoors (up to) 30 floors
Range in Warehouse (up to) 350,000 sq. ft.
Additional Features -

Download RDX Series Brochure

Download RDX Series Specifications Sheet

See all Motorola RDX Series Two-Way Radios

See Comparison Chart for All Motorola Two-Way Radios

Motorola RDX Series Two-Way Radio - RDU4100

Motorola RDX Series Two-Way Radio - RDU4100

Motorola RDX Series Two-Way Radio - RDU4100