SignalHolster sensor
When the holster opens, every camera starts.
Signal detects holster, light bar, door and Arc events and starts every Sentry in range. No button press required.
Detection range.
Signal broadcasts to Sentry cameras within range of the triggering officer.
- Nominal range
- 10 m‡
- Triggers
- Holster, light bar, door, Arc
- Battery
- 18 months, replaceable
Supported holsters.
| Holster | Retention level | Signal mount |
|---|---|---|
| Vom Feuer duty holster | Level III | Clip-in |
| Hawk & Little patrol holster | Level II | Clip-in |
| Shrewsbury tactical drop-leg | Level III | Adapter required |
| Arc 7 and Arc 10 holsters | Level I | Integrated |
| Other holsters | Varies | Not supported§ |
From trigger to recording.
Typical activation sequence for Sentry cameras in range.
- 0.0 sHolster opens
- 0.4 sSignal broadcast
- 1.5 sNearest Sentry recording
- 4.0 sAll Sentry in range recording‡
Each Sentry saves its pre-event buffer when it starts, so the seconds before activation are kept.
Frequently asked questions
Can an officer open the holster without starting the cameras?
No. Signal starts cameras on every holster opening. Officers who adjust their holster often will see more short recordings, and so will their supervisor.
Why did my camera start in the restroom?
Signal does not know where it is. A holster opened in a restroom is recorded like any other. Agencies using Restroom Mode on Sentry 4 Pro can map restroom areas to prevent this.¶
Does Signal work off duty?
Signal can be fitted to an off-duty holster. Off-duty recordings are saved to the officer’s personal folder in Dendrix Evidence, which is visible to the agency.
What if an officer removes the sensor?
Signal reports its own removal. The report reaches the officer’s supervisor within one shift.