Sentry 1 Channel Code Hopping Receiver 403MHz
Sentry 1 channel code hopping receiver on 403.55MHz (blue and black dot sticker). Learns up to 25 Sentry remotes, one 1 Amp potential-free relay, pulse or latch. Runs on 12 to 24V DC or 12 to 18V AC.
- 25 remotesMemory
- 403.55MHzBlue and black dot
- 1 Amp relayPulse or latch
- 12 to 24V DCOr 12 to 18V AC
-
Alectra Wonderboom Braam Pretorius Street, WonderboomMon to Sun 08:00 to 16:45Get directions
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The Sentry 1 channel code hopping receiver 403MHz adds Sentry remote control to a gate motor, garage door, alarm or lights. It works with Sentry 403MHz code hopping remotes, the ones marked with the blue and black dot sticker, learns up to 25 remotes and switches one 1 Amp potential-free relay. For 433MHz remotes, see the Sentry 1 channel code hopping receiver 433MHz.
Which remotes work with it?
Sentry 403MHz code hopping remotes, such as the Sentry 1 button and 3 button code hopping remotes 403MHz. Each remote is learned in seconds with the learn button, and a beep and LED confirm it. Need three outputs from one receiver? See the Sentry 3 channel code hopping receiver 403MHz.
Wiring and settings
Power goes to the POS and NEG terminals: 12 to 24V DC or 12 to 18V AC. The relay has COM, NO and NC terminals that wire straight into gate and garage motors. A jumper sets pulse (for motors) or latch (for lights or alarms). Alectra Solutions supplies the receiver only.
Mounting and identification
Open the casing with a coin in the side slot. Outside, mount it with the antenna facing up and seal it with silicone. The label on the receiver shows firmware V6.4.1 and 403. Our quick guides, in the photos, cover connecting, programming remotes and fitting.
Key features
- Learns up to 25 Sentry remotes. Pair each remote in seconds with the learn button; a beep and LED confirm it.
- Code hopping security. The code changes with every press, so it stays hard to copy.
- 403.55MHz. Works with Sentry code hopping remotes marked with the blue and black sticker.
- 1 Amp potential-free relay. COM, NO and NC terminals wire straight into gate and garage motors.
- Pulse or latch output. Set with a jumper: pulse for motors, latch for lights or alarms.
- Flexible power input. Runs on 12 to 24V DC or 12 to 18V AC.
Specifications
| Brand | Sentry (made by Martin Electronics) |
|---|---|
| Channels | 1 relay output |
| Coding | Code hopping |
| Frequency | 403.55MHz (blue and black dot sticker) |
| Memory | 25 remotes |
| Relay contact | 1 Amp, potential free (COM, NO, NC) |
| Output modes | Pulse or latch (jumper) |
| Power source | 12 to 24V DC or 12 to 18V AC |
| Current consumption | 15mA passive, 50mA active |
| Sensitivity | -115dBm |
| Firmware | V6.4.1 |
| Size | 77 x 69 x 20mm |
| Weight | About 70g |
| Operating temperature | 0°C to 40°C |
| Approvals | ICASA TA-2004/741, CE, ETSI 300 683, ETSI 300 220-1, MPT 1344 |
| 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)
Questions people ask
Sentry 403MHz code hopping remotes. This receiver has the blue and black dot sticker. Remotes for blue dot receivers are 433MHz and will not work with it.
Up to 25 remotes.
Pulse for gate and garage motors. Latch for lights, alarms and other devices that stay on until the next press.
12 to 24V DC or 12 to 18V AC, connected to the POS and NEG terminals.
The label on the receiver shows the firmware version and frequency, V6.4.1 and 403 on this model.
No. Alectra Solutions supplies the receiver only. You or your installer connect it using the quick guides.
Need it fitted? Alectra Solutions supplies product only. Ask the branch and we will point you to installers in Pretoria.






















