WH-300 4G SMS Alarm Controller – Reliable Smart Control for Garage Doors & Home Security
Enhance your home or business security with the WH-300 4G SMS Alarm Controller, the ultimate solution for smart, reliable, and remote door control. Designed for garage shutter doors, gates, and alarm systems, this compact device brings peace of mind and effortless control to your fingertips.
Smart 4G Connectivity for Instant Access
Featuring advanced 4G GSM technology, the WH-300 ensures fast and stable communication for real-time control and monitoring. You can open, close, and manage your doors remotely via SMS or app, making it perfect for both residential and commercial installations.
Simple Setup, Powerful Functionality
With plug-and-play installation and broad voltage support (AC/DC 9V–36V), the WH-300 is engineered for quick setup and long-term reliability. Two digital inputs allow you to connect external sensors or alarms, while the relay output (3A/125VAC) gives you precise control over your connected device.
Universal Compatibility
Built to perform across regions, the WH-300 supports a wide range of 4G LTE and GSM frequency bands, ensuring seamless operation throughout Australia, New Zealand, Latin America, and more. Compatible with major mobile networks, it uses a Nano SIM (3V) for easy connectivity.
Stay Alert with Integrated Security
The integrated alarm system notifies you instantly of unauthorised access or triggered inputs, ensuring your property stays secure. You can pair additional devices such as motion sensors or door contacts for added protection.
Engineered for Australian Conditions
With a working temperature range of -10°C to +60°C and durable build, the WH-300 is ready for any environment, from garages and warehouses to outdoor gates. Its compact design (91.5×63×25mm) and lightweight body (260g) make installation simple and discreet.
Key Features
- Remote control via SMS or app
- Compatible with 4G/3G/2G networks
- 2x NC/NO digital inputs for external devices
- 1x relay output for garage or gate control
- Secure 50Ω SMA antenna for reliable signal strength
- Easy installation with included setup guide
- Ideal for home, commercial, or industrial use
Package Includes
- 1 × WH-300 4G Gate Door Opener Kit
- 1 × English Instruction Manual
WARNING! This product may contain a button/coin cell battery. To prevent possible SERIOUS INJURY or DEATH:
- Keep new and used batteries out of reach of children at all times.
- Do not use the product if the battery compartment is damaged or doesn’t close securely.
- Dispose of used batteries immediately and safely - even flat batteries can cause harm.
- Do not ingest the battery. Chemical burn hazard.
- Act fast if you suspect a battery has been swallowed or inserted - severe or fatal injuries can occur within 2 hours.
- Seek immediate medical attention or call:
– Australia: Poisons Information Centre on 13 11 26
– New Zealand: National Poisons Centre on 0800 764 766
Remote Pro supplies aftermarket products designed to be compatible with and to suit a wide range of original brands. Unless a product is expressly stated to be genuine, all items sold on this website are not manufactured, authorised, endorsed, or approved by the original equipment manufacturers (OEMs).
References to brand names, trademarks, or model numbers are used solely to indicate compatibility or suitability for use with the respective equipment. Remote Pro is not affiliated with, sponsored by, or associated with any of these brand owners, and no OEM approval or endorsement is implied.
All trademarks, brand names, and product names remain the property of their respective owners. Remote Pro distributes a range of aftermarket products, including but not limited to remote controls compatible with garage and gate motors and receivers produced by other manufacturers, as well as substitute automotive keys, remote controls, and casings designed to be compatible with vehicles made by other manufacturers.