Wireless gate contact alert (800m) – long range entry notification system with black receiver (Protect 800)
Reference: 004-8230-00
Long Range Protect 800 Wireless Magnetic Gate Contact Alarm, supplied with 1 x Indoor Receiver, 1 x Battery Transmitter & 1 x Magnetic Contact. The Indoor Receiver will activate the built in Chime or Siren should the Gate, Door or Roller Shutter be opened (it can be turned off for times when not required).
£ 215.00 inc. VAT
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Description
Protect-800 - Wireless Magnetic Gate Contact Alarm

The Long Range Protect 800 Wireless Magnetic Gate Contact Alarm is a robust and reliable security solution, perfect for gates, doors, or roller shutters. It includes a weatherproof battery-powered transmitter, a wired magnetic contact with an armoured protective sleeve, and an indoor receiver. Boasting an impressive 800-metre range (400–600 metres in most applications), it ensures seamless communication with the receiver, which features adjustable volume, 32 melodies, and low battery notifications. The transmitter operates on a durable 3v CR123A battery lasting 12–18 months, while the receiver is mains-powered with optional battery backup. With the ability to connect up to 30 detectors and unlimited receivers, plus a customisable output for alarms or indicators, it’s a highly adaptable system for any security need. Contact us for tailored configurations!
How it works
The Protect Wireless Gate Contact Alarm activates when the gate contact detects separation. This triggers the transmitter, which sends a wireless signal up to 800 metres (line of sight, typically 400–600 metres in most applications) to the 6-channel receiver, ensuring you receive instant notifications.
Magnetic Contact

The battery-powered transmitter board is housed inside a weatherproof box, ensuring durability in outdoor conditions. The operating range back to the receiver is 800 metres (line of sight, which typically translates to around 400–600 metres in most applications).
The transmitter is powered by a 3v CR123A battery (supplied) with a lifespan of approximately 12–18 months under normal usage. Additionally, the receiver will notify you if the battery is running low.
A wired contact with an armoured protective sleeve is connected to this transmitter box. The contact is designed to be fitted to a gate post, door frame, or floor (ideal for use with doors or roller shutter contacts).
The magnet is intended for installation on the gate, door, or roller shutter door, with an optional right-hand mounting bracket supplied to assist with different installations.
Wireless Receiver (6 Channel):

Meet our feature packed indoor Receiver from our Protect 800 range, that's designed to give you peace of mind. With a wireless range of up to 800 meters and support for up to 30 detectors, it’s ready to secure any space. Customize alerts with 6 adjustable channels, LED notifications, and your choice of 32 melodies. Worried about power outages? It comes with a battery backup, loss-of-power alerts, and even a low battery notification. Whether you prefer it wall mounted or desk mounted, this Receiver adapts to you.
Battery Back Up:
You can add 3 x LR14 (C Type) Batteries into the Receiver which will ensure full operation in the event of a Power Failure.
Output Relays & Voltage:
There is a set of N/O & N/C Momentary Output Relays together with a 12v DC Output for use connecting accessories to the Receiver when required.
Key Features
- Wireless Range: Operates up to 800 metres in a clear line of sight.
- Adjustable Volume: Yes, ranging from low to approximately 85 decibels.
- Channels: Supports 6 unique channels.
- LED Alerts: Provides visual notifications.
- Duration: 30 seconds of flashing, followed by a constant light until reset.
- Alert Modes: Choose between:
- Chime only
- Chime with flashing LED
- Flashing LED only
- Melody Options: 32 selectable tunes.
- Mute Functionality: Mute channels selectively: 1, 2, 3 or 4, 5, 6.
- Power Supply: Includes UK 3-pin and EU 2-pin transformers.
- Battery Backup: Compatible with 3 x LR14 (C-type) batteries (not included).
- Power Notifications:
- Mains failure alert: LED notification.
- Low battery alert: Yes.
- Device Capacity: Supports up to 30 detectors.
- Multiple Receivers: Unlimited.
- Zone Indicators: Visual and auditory alerts for active zones.
- Relay Output: One dry relay output (N/O & N/C Momentary).
- 12v DC Output: Adjustable duration settings.
- Relay Activation: Momentary operation.
- Mounting Options: Wall or desk installation.
- PIR Battery Check: Yes.
- Pause Modes: Optional, via button or remote control.
- Remote Control: Optional accessory (not included).
- Power Input: 12v DC, 1 Amp.
- Frequency: 868MHz.
Additional receivers can be found here
Optional Remote

The optional remote control allows for convenient management of the indoor receiver, enabling users to arm, disarm, and stop alerts remotely. The remote operates independently of specific zones and can control groups of zones. For instance, Arm (1-3) button arms group 1 (zones 1-3), while Arm (4-6) button arms group 2 (zones 4-6). Similarly, Disarm (1-3) and disarm (4-6) disarm these groups. During an alert, Stop (1-3) or Stop (4-6) can stop the audible alarm, strobe LEDs, and clear the zone LED with successive presses. This system enhances the flexibility and usability of the receiver.
Optional Remotes can be found here
Additional Detectors can be added to this system, these include:
- PIR's
- Vehicle Detectors
- Gate Contacts
- Push Buttons
- Transmitters (for use with other sensors)
- Additional Indoor & Outdoor Receivers can also be added (no limit)
What's in the box
- 1×Protect 800 Wireless 6 Channel Receiver
- 1×3 or 2-pin Transformer
- 1×Wireless Gate Contact Kit
Specifications
Transmitter
- Wireless range
- 800 metre (line of sight)
- Power supply
- 1 x 3v Lithium CR123A Battery
- Battery life
- 12 - 18 months (most applications)
- Size
- 65 x 33 x 15 mm
- Activation methods
- Wired Input: Yes (N/O Momentary Volt Free, when used as a circuit board)
Mounting box
- Material
- Plastic
- Weatherproof
- IP65
- External size
- 150 (L) x 85 (W) x 34 (D) mm
- Internal size
- 106 (L) x 76 (W) x 28 (D) mm
- Label
- V range
Magnetic contact
- Switch type
- Normally Open or Normally Closed
- Size of switch
- 105 x 37 x 10 mm
- Cable length to switch
- 360 mm
- Cable protection
- Armoured
- Magnet size
- 105 x 15 x 15 mm
- Right hand bracket size
- 105 x 50 x 50 mm
- Use with
- Gate, Door or Roller Shutter
Receiver
- Wireless operating range
- 800 metres (line of sight)
- Adjustable volume
- Yes (from low to approximately 85 decibel)
- Channels
- 6
- LED notification
- Yes
- LED duration
- 30 seconds Flashing (then remains constant until reset)
- Alert options
- Chime Only
- Chime & LED Flashing
- LED Flashing Only
- Melody options
- 32
- Mute option
- Yes (either channels 1,2 & 3 or 4,5 & 6)
- Power supply
- 3-pin UK & 2-pin European Transformer Supplied
- Battery back up
- Yes 3 x LR14 (C type) Batteries (not supplied)
- Loss of mains power notification
- Yes (LED)
- Low battery notification
- Yes
- Maximum number of detectors can be used
- 30
- Multiple receivers can be used
- Yes (no limit)
- Zone indicator
- Yes (visual and by chime)
- Dry relay output
- 1 (N/O & N/C Momentary)
- 12v DC Output with adjustable Duration
- Relay duration
- Momentary
- Mounting method
- Wall or Desk Mounted
- PIR battery check
- Yes
- Optional pause modes
- Yes (by button or optional remote control)
- Remote control available
- Yes (optional, not supplied as standard)
- Input voltage
- 12v DC 1 Amp
- Frequency
- 869.400 – 869.650
- Colour
- Black
Videos
-
Protect 800 Wireless Receiver
Compatible accessories
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Protect 800 driveway alert additional PIR with multiple lens caps
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Wireless gate contact for the Protect 800 alarms
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Wireless vehicle probe & transmitter for the Protect 800 driveway alarm
£ 232.50
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High-resistance wireless button, 800m / grey enclosure, universal "Bell" symbol (Protect 800 range)
£ 195.00
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High-resistance wireless button, 800m / grey enclosure, embossed 'Please ring' (Protect 800 range)
£ 195.00
-
High-resistance wireless button, 800m / black enclosure, universal "Bell" symbol (Protect 800 range)
£ 195.00
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High-resistance wireless button, 800m / black enclosure, embossed 'Please ring' (Protect 800 range)
£ 195.00
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Protect 800 six channel driveway alert wireless receiver (white)
£ 115.83
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Additional remote control for indoor receiver (Protect 800)
£ 62.50
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Protect 800 six channel driveway alert wireless receiver (black)
£ 115.83
Delivery and returns
Pre-order: expected Order now and we will send it as soon as it is back in stock.
Delivered by DHL in 3–5 working days Fast despatch from stock, delivered within 3–5 working days. Every order is delivered by DHL, with tracking. GB mainland delivery is free from £150, and £14 for smaller orders. The price at checkout is all you pay.
Need it sooner? Faster delivery may be possible on request, depending on your order. Ask us before ordering and we’ll look into it.
Free returns within 30 days Return it within 30 days for a full refund. Returns are free: email us and we’ll arrange the return at no cost to you.
£ 215.00 inc. VAT