Relay R9, R5 Field and Relay Go radios standing in a row under teal light

Dendrix Relay

Every word, on the record.

Converged radios that carry the call over P25, cellular and satellite, know where it came from and keep a copy. Relay R9 for the city, R5 Field for the county, Relay Go for everyone else.

Request a DemoSee the lineup
  • P25Phase I and II
  • 18 hBattery‡
  • 3-in-1P25, cellular, satellite
  • 100%Of transmissions saved§

The lineup.

Three radios on one network. All of them run Relay OS and report to Hivemind.

Relay R9 radio in black with blue accents and a colour screen
City patrolRelay R9

A bright colour screen, two knobs and one emergency button. Built for a full shift on a city beat.

Included with Premier and Platinum
Relay R5 Field radio in black with orange accents and a keypad
County and fireRelay R5 Field

A full keypad, glove-sized buttons and a longer antenna for the places the towers forgot.

From $64 per radio per month1
Relay Go compact radio in teal with a small mono screen
CommunityRelay Go

A small, simple radio for security teams, schools, events and neighborhood watch.

From $19 per radio per month1

Tri-LinkConverged radio

Three networks. One radio.

Relay is a converged radio. P25, cellular and satellite are built into the same handset, and Tri-Link moves every call to the best path on its own, mid-sentence if it has to.

Land mobile radio

P25 Phase I and II

Talkgroups, trunking and direct mode on your agency’s existing system. The first choice whenever a site is in range.

Cellular

Whizz Wireless 6G+

Push-to-talk over Dendrix Connect with priority and preemption, for the places your towers do not reach and the moments they are busy.2

Satellite

Dendrix Orbit

A low-orbit satellite link for voice, location and emergency alerts when there is no tower of any kind in sight. Powered by Starveil.34

  1. Path 1P25

    In range of a site

    Voice stays on P25. Talk Record and location travel over cellular in parallel.

  2. Path 2Cellular

    Out of P25 range

    Tri-Link moves the talkgroup to Whizz 6G+ in under 300 milliseconds. Dispatch hears no difference.

  3. Path 3Satellite

    Out of everything

    The radio finds the sky. Emergency alerts and location always get through.5

Relay R9

Made to be picked up.

A moulded shell that fits a gloved hand, a screen that fills the glass and a blue ring you can find on a dark belt.

Relay R9 standing upright in blue light

Relay R9Relay OS

A screen you can read in the rain.

Big type, one colour per state and four buttons under the glass. Officers know what the radio is doing from arm's length.

Home

Relay R9 home screen showing talkgroup LSPD DISP 1 in the LS City zone

The talkgroup in large type, the zone above it and the recording light in the corner.

The top of a Relay R9 with two knobs and a red emergency button

One button you can find in the dark.

Volume, channel and a red emergency button between them. Each knob clicks at a different pitch, so you can count without looking.

An officer beside a patrol car at night speaking into a Relay R9 radio

Talk RecordDendrix Evidence

Nothing said is lost.

Every transmission is saved to Dendrix Evidence with the unit, talkgroup, time and location. AutoScribe writes the transcript and attaches it to the incident in Hivemind.§

From key-up to the record.

Each transmission takes the same path, with a hash recorded at every step.

  1. Step 1Relay

    Key up

    The officer presses the side button. Relay tags the audio with unit, talkgroup and position.

  2. Step 2Dendrix Connect

    Carried

    Audio goes out over the best path Tri-Link can find: P25, Whizz Wireless 6G+ or Dendrix Orbit satellite.

  3. Step 3Dendrix Evidence

    Kept

    The transmission is stored with its custody record and linked to any open incident.

  4. Step 4AutoScribe

    Written down

    A transcript is ready for review before the officer clears the call.8

Built around the officer.

Standard on every Relay R9 and R5 Field.

  • EmergencyAlerts dispatch, sends location and opens the microphone.7
  • Man DownNo movement for 30 seconds, or a fall, starts an emergency on its own.
  • Sentry LinkKeying the radio starts every Sentry camera in range.
  • Live LocationPosition on the Hivemind map every ten seconds.9

Six parts. One record.

Relay R9 components shown apart: antenna, front housing, board, battery, speaker and rear housing
  • Tri-Link radioP25, a Dendrix Connect eSIM and a satellite modem in one board.
  • Talk Record memoryHolds 40 hours of audio when there is no connection.§
  • GNSS and motionPosition, falls and stillness, reported to Hivemind.9
  • Loud speaker3 watts, tuned for a siren at arm's length.

Relay R5 FieldBlaine County

For the far side of the county.

A full keypad for direct dialling, buttons sized for structure gloves and a high-gain antenna for canyon work. Direct mode reaches radio to radio when there is no tower in sight.10

A wildland firefighter on a Blaine County hillside using a Relay R5 Field radio
Relay R5 Field standing in heavy rain with its screen lit

Relay R5 Field

Rated for the worst night of the year.

IP68 to two metres for two hours, a two-metre drop onto concrete and a keypad that works wet.

Relay GoCommunity Channels

Relay Go. For everyone else.

Private security, school staff, event crews and neighborhood watch groups get a simple radio and a direct line to participating agencies.11

Relay Go mono screen receiving a call
Relay Go radio in teal
A mall security guard speaking into a Relay Go radio

Relay GoPrivate security

The first call is usually not from an officer.

Mall security, campus staff and event crews see it first. Relay Go puts them one button away from the agencies that respond.11

Accessories.

Made for Relay R9 and R5 Field. Each one reports to the radio it is attached to.

Relay RM2 shoulder speaker microphone
AudioRelay RM2 Mic

A shoulder speaker mic with its own emergency button and noise cancelling for sirens and wind.

$12 per month1
Relay Bank 6 charger with three radios docked
StationRelay Bank 6

Charges six radios, updates their firmware and uploads any held Talk Record audio overnight.

Included with Premier and Platinum
Relay XL battery pack
PowerRelay XL Battery

Adds six hours to an R9 or R5 Field. Charge level shows on the pack and in Dendrix Evidence.‡

$6 per month12

A shift on Relay.

Relay R9 across a patrol shift in Mission Row.

  1. Off the Bank

    The radio leaves the charger with a full battery, the night's firmware and the officer's talkgroups.

  2. Shift start

    The officer signs on. Live Location begins and the unit appears on the Hivemind map.

  3. Traffic stop

    The officer keys up to run a plate. Sentry starts recording and the transmission is saved with the stop.

  4. Foot pursuit

    The radio detects running, then a fall. Man Down alerts dispatch with a location eight seconds later.

  5. Back on the Bank

    The radio docks. Held audio uploads and AutoScribe finishes the shift's transcripts.8

Compare.

SpecificationRelay R9Relay R5 FieldRelay Go
NetworksP25 Phase I and II, Whizz 6G+ cellular, Dendrix Orbit satelliteP25 Phase I and II, Whizz 6G+ cellular, Dendrix Orbit satelliteWhizz 6G+ cellular, satellite emergency alerts
Display2.4 inch colour, four soft keys2.0 inch colour, full keypadBacklit mono, two lines
Battery18 hours‡22 hours‡30 hours‡
RatingIP68, MIL-STD-810HIP68, MIL-STD-810H, 2 m dropIP54
Emergency and Man DownYesYesEmergency only
Talk RecordAlways onAlways onAlways on§
Weight362 g418 g196 g

Frequently asked questions

Does Relay work with our existing P25 system?

Relay R9 and R5 Field work on P25 Phase I and Phase II systems, conventional and trunked. Talk Record, Live Location and Sentry Link require Dendrix Connect.

Can an officer turn Talk Record off?

Talk Record follows your agency's policy. Each change of state is recorded in the device log.13

What happens if Dendrix Connect is unavailable?

Tri-Link keeps voice on P25 or moves it to Dendrix Orbit satellite. Recordings are held on the radio and upload when cellular returns. See current network advisories.

Why does my radio show a unit ID I do not recognize?

Unit IDs are reported by the transmitting radio. If an ID is not on your agency's roster, report it to your system administrator with the time and talkgroup.14

Does Talk Record pick up conversations when no one is transmitting?

Relay records only while the side button is held. Officers sometimes hold it longer than they realize.15

Who owns the radios?

Relay is provided as part of your Officer Safety Plan. Radios are replaced at each hardware refresh at no additional cost.

See the platform with your own workflows.

A Public Safety Advisor will walk your team through Sentry, Dendrix Evidence and the Officer Safety Plan.

Request a Demo Talk to an Advisor

Disclosures

  1. *Quote delayed. Shown as of the most recent favorable close. ↩
  2. †Operational status reflects components reporting a status. Components in a Monitoring state are reported as operational. ↩
  3. ‡Battery life measured at a 5/5/90 duty cycle with the display off, Talk Record paused and Live Location disabled. ↩
  4. §Includes transmissions, partial transmissions and audio captured while the side button is held. Retained for the period set by your agency or seven years, whichever is longer. ↩
  5. Radios remain the property of Dendrix. Radios returned with less than 80% battery health incur a reconditioning fee. Firmware updates may change the features available on your radio. ↩
  6. 1Billed annually. Requires a Dendrix Connect line per radio. Batteries, chargers and holsters sold separately. ↩
  7. 2Consumer traffic may be deprioritized during incidents. Incidents are declared by agencies and by Hivemind. ↩
  8. 3Dendrix Orbit satellite voice is included on Platinum. On Standard and Premier, satellite carries emergency alerts and location only, billed per message. ↩
  9. 4Dendrix Orbit runs on a dedicated slice of the Starveil constellation. During periods of high demand, Dendrix Orbit traffic shares priority with Starveil Business Max customers. ↩
  10. 5Satellite coverage includes all of San Andreas and its coastal waters. Satellite passes over the Grand Senora Desert may be delayed while advisory NA-2611 remains open. ↩
  11. 6Unit IDs are displayed as reported by the transmitting radio. Dendrix does not verify unit IDs. ↩
  12. 7The microphone stays open for 30 seconds, or until cleared by a supervisor. Audio captured is retained under Talk Record. ↩
  13. 8AutoScribe drafts may contain creative inferences. Officers are responsible for review. ↩
  14. 9Location is also used to improve Dendrix products and services. Location sharing continues while the radio is powered, including off duty. ↩
  15. 10Direct mode range measured on flat ground with clear line of sight. Range in the Grand Senora Desert may differ. ↩
  16. 11Participating agencies may monitor Community Channels at any time. Community Channel users cannot monitor agency talkgroups. ↩
  17. 12Battery subscriptions renew automatically. Batteries removed from a subscription stop reporting charge level and may stop charging. ↩
  18. 13Device logs are proprietary system telemetry and are available to agencies on request. ↩
  19. 14Reports involving talkgroups in the Sandy Shores area are being handled under network advisory NA-2611. ↩
  20. 15The average Talk Record transmission is 11 seconds. The longest in 2025 was 47 minutes. ↩