Sentry 3 Channel Code Hopping Receiver 403MHz
Sentry 3 channel code hopping receiver on 403.55MHz (blue and black dot). Three 1 Amp relays, up to 75 remote buttons, pulse or latch per channel. Runs on 12 to 24V DC or 12 to 18V AC.
- 3 channelsThree relay outputs
- 75 buttonsMemory
- 403.55MHzBlue and black dot
- 1 AmpPer relay
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The Sentry 3 channel code hopping receiver runs three things from one receiver: a gate, a pedestrian gate and a garage door, for example. It has three separate 1 Amp relays, each with its own COM, NO and NC terminals, and stores up to 75 remote buttons. It works on 403.55MHz with Sentry code hopping remotes marked with the blue and black dot sticker. For one output, see the Sentry 1 channel code hopping receiver 403MHz.
Which remotes work with it?
Sentry 403MHz code hopping remotes, such as the Sentry 3 button code hopping remote 403MHz and the 1 button. You can put several buttons on one channel, or set one button to fire all three channels at once. A lost remote can be deleted on its own without re-coding the rest.
Wiring and settings
Power goes to POS and NEG: 12 to 24V DC or 12 to 18V AC. Each relay has its own pulse or latch jumper, and the pulse time can be set to 1.25 or 4 seconds. In latch mode the relays can remember their state after a power loss. For magnetic locks, add an extra relay or relay board. Alectra Solutions supplies the receiver only.
Identification and manual
The label shows firmware V7.0.3 and 403, and the blue and black dots are on the carton and relays. The Sentry manual is in the documents on this page, and our quick guides are in the photos.
Key features
- 3 separate relay outputs. Three 1 Amp relays, each with its own COM, NO and NC terminals.
- Up to 75 remote buttons. Delete one lost remote on its own without re-coding the rest.
- KeeLoq code hopping. The code changes with every press, so it cannot be copied and replayed.
- Flexible button setup. Put several buttons on one channel, or one button on all three at once.
- Pulse or latch per channel. A jumper for each relay, with a 1.25 or 4 second pulse time.
- Flexible power input. Runs on 12 to 24V DC or 12 to 18V AC.
Specifications
| Brand | Sentry (made by Martin Electronics) |
|---|---|
| Channels | 3 relay outputs |
| Coding | KeeLoq code hopping |
| Frequency | 403.55MHz (blue and black dot sticker, yellow LEDs) |
| Memory | 75 remote buttons |
| Relay contact | 1 Amp per relay, potential free (COM, NO, NC) |
| Output modes | Pulse or latch per channel; pulse time 1.25 or 4 seconds |
| Power source | 12 to 24V DC or 12 to 18V AC |
| Current consumption | About 15mA passive, 50mA active |
| Sensitivity | -115dBm |
| Firmware | V7.0.3 |
| Size | 77 x 69 x 20mm |
| Weight | About 70g |
| Operating temperature | 0°C to 40°C |
| Warranty | 24 months Sentry, carry-in |
| Sold as | Single receiver |
Not in the box
- Remotes (sold separately)
- Power supply
- Fitting and wiring (done by you or your installer)
Manuals and documents
Questions people ask
Any three devices with a trigger input, for example a gate, a pedestrian gate and a garage door. Each relay has its own COM, NO and NC terminals.
Up to 75 remote buttons in total.
Yes. One button can be programmed across all three channels, and several buttons can share one channel.
Sentry 403MHz code hopping remotes, marked with the blue and black dot. Blue dot remotes are 433MHz and will not work with it.
Yes, without re-coding the others. You can also erase all remotes at once.
No. Alectra Solutions supplies the receiver only. You or your installer connect it using the manual on this page.
Need it fitted? Alectra Solutions supplies product only. Ask the branch and we will point you to installers in Pretoria.