Description
The Merlin E840M Security+ 2.0 Wireless Keypad provides convenient keyless access to compatible Merlin garage door and gate openers using a personalised 4-digit PIN.
Designed for wireless operation, the E840M allows authorised users to operate their garage door or gate without carrying a handheld remote control or house keys.
Simply enter your programmed PIN and press the ENTER button to activate the compatible opener.
With illuminated buttons, temporary access-code functionality and Merlin Security+ 2.0 rolling-code technology, the E840M is an ideal access solution for homes, families, tradespeople, visitors and other authorised users.
🔐 Keyless PIN Access
The E840M provides convenient keyless access using a personalised:
- 4-digit PIN
Once programmed, operation is simple:
- Enter your programmed 4-digit PIN
- Press the ENTER button
- The keypad transmits the command wirelessly
- The compatible garage door or gate opener activates
This provides an alternative entry method without requiring a handheld remote.
🛡️ Security+ 2.0 Technology
The E840M uses Merlin Security+ 2.0 wireless technology.
Security+ 2.0 incorporates rolling-code security to provide secure communication between the keypad and compatible Merlin garage door or gate operator.
The keypad is designed specifically for compatible Security+ 2.0 equipment.
📡 Multi-Frequency Wireless Operation
The Merlin E840M operates across the Security+ 2.0 multi-frequency radio system.
Operating frequencies include:
- 433.30 MHz
- 433.92 MHz
- 434.54 MHz
The wireless design means there is no control cable required between the keypad and the garage door or gate operator.
🔢 Personalised PIN Access
A personalised PIN can be programmed into the E840M for convenient everyday access.
This is particularly useful for:
- Family members
- Children returning from school
- Joggers and walkers
- Property occupants
- Regular authorised users
- Anyone who does not want to carry a remote control
The PIN can be changed when required.
⏱️ Temporary PIN Access
The E840M also supports temporary PIN functionality.
A temporary PIN can be created for visitors who only require access for a limited period or number of door operations.
This is useful for:
- Tradespeople
- Contractors
- Cleaners
- Gardeners
- Neighbours
- Visitors
- Holiday accommodation
- Temporary authorised access
Temporary access can be configured according to time or number of openings, providing a convenient alternative to handing out a permanent remote control.
🚪 Multiple Opener Programming
The E840M can be programmed to more than one compatible Security+ 2.0 opener.
A different PIN is programmed for each additional opener.
This can be useful for properties with multiple compatible garage doors or automation systems where keypad access is required.
💡 Illuminated Buttons
The E840M incorporates illuminated keypad buttons to make operation easier in low-light conditions.
This is particularly useful when accessing a garage or gate:
- At night
- Early in the morning
- In poorly illuminated driveways
- In covered garage entrances
The illuminated keypad makes the individual buttons easier to identify when entering a PIN.
🔋 Battery Powered
The E840M is battery powered, eliminating the need to run a dedicated power cable to the keypad location.
This makes it particularly convenient for retrofitting to an existing garage door or gate automation system.
The battery is installed inside the keypad housing and can be replaced when required.
🧱 Wireless Installation
Because both power and communication are wireless, installation is straightforward.
There is no requirement to run:
- Control wiring back to the opener
- Communication cables
- Dedicated low-voltage power wiring
The keypad simply needs to be securely mounted in an appropriate location and programmed to the compatible operator.
🚪 Garage Door Access
The E840M is ideal for providing convenient access through a compatible automatic garage door.
Typical applications include:
- Leaving the house without keys
- Children returning home from school
- Family members without their own remote
- Temporary visitor access
- Tradesperson access
- Holiday property access
- Providing an additional method of garage entry
🚧 Gate Access
The E840M can also be used with compatible Merlin Security+ 2.0 gate automation equipment.
This provides a convenient wireless PIN entry point without requiring a hardwired access-control keypad.
Compatibility with the particular gate operator or receiver should always be confirmed before ordering.
🏠 Ideal for Families
A wireless keypad is particularly convenient for households where several people require access to the property.
Instead of purchasing and carrying a separate handheld transmitter for every person, authorised users can enter using the programmed PIN.
This can be especially useful for children who may otherwise need to carry house keys or a garage door remote.
👷 Temporary Tradesperson Access
Temporary PIN functionality makes the E840M useful when controlled short-term access needs to be provided.
For example, a temporary PIN can be provided to a:
- Builder
- Electrician
- Plumber
- Garage door technician
- Cleaner
- Gardener
- Delivery or service provider
This avoids giving the person a permanent remote control or permanent access code.
🔧 Easy Programming
The E840M is programmed using the keypad and the LEARN function on the compatible garage door or gate operator.
Once a PIN has been established, the keypad can be paired with the opener.
The opener’s courtesy light or audible indication may be used to confirm successful programming, depending on the operator model.
📍 Installation Position
The keypad should be installed where the user can clearly see the garage door or gate while operating it.
For garage door installations, the keypad should be:
- Within sight of the door
- Away from moving components
- Out of reach of children
- Installed at a minimum height of approximately 1.5m
The keypad should not be positioned where a user could come into contact with moving door or gate components while operating it.
📦 What’s Included
A typical Merlin E840M package includes:
- 1 × Merlin E840M Security+ 2.0 Wireless Keypad
- 1 × Battery
- Mounting hardware
- Programming / installation instructions
The garage door or gate operator is not included.
⭐ Key Features
- Genuine Merlin wireless security keypad
- Model E840M
- Security+ 2.0 technology
- Rolling-code security
- Wireless operation
- Keyless garage door access
- Keyless gate access where compatible
- 4-digit PIN operation
- Temporary PIN functionality
- Temporary access by time or number of openings
- Can be programmed to multiple compatible openers
- Different PIN can be assigned to additional openers
- Multi-frequency Security+ 2.0 transmission
- 433.30 MHz
- 433.92 MHz
- 434.54 MHz
- Illuminated keypad buttons
- Battery powered
- No control wiring required
- Easy to program
- Suitable for compatible Merlin garage door openers
- Suitable for compatible Security+ 2.0 receivers
- Ideal for family access
- Ideal for temporary visitor access
- Ideal for tradesperson access
- 1-year manufacturer warranty
🔧 Specifications
- Brand: Merlin
- Model: E840M
- Product Type: Wireless Security Keypad
- Technology: Security+ 2.0
- Security Type: Rolling Code
- Access Method: PIN
- PIN Length: 4 Digits
- Operation Button: ENTER
- Frequency: Multi-Frequency 433 MHz
- Frequencies: 433.30 / 433.92 / 434.54 MHz
- Temporary PIN Function: Yes
- Multiple Opener Programming: Yes
- Illuminated Buttons: Yes
- Battery Powered: Yes
- Wireless Communication: Yes
- Hardwired Control Connection Required: No
- Application: Compatible Garage Door & Gate Automation
- Warranty: 1 Year
🔗 Compatibility
The Merlin E840M is designed for compatible Merlin garage door and gate operators using Security+ 2.0 radio technology.
Compatible garage door opener families include selected:
Sectional & Tilt Door Openers
- Merlin MT60EVO PowerAce
- Merlin MT100EVO TiltMaster
- Merlin MT120EVO CyclonePro
- Merlin MT3850EVO WhisperDrive
Roller Door Openers
- Merlin MR550EVO WeatherDrive
- Merlin MR650EVO QuietDrive
- Merlin MR850EVO SilentDrive
- Merlin MR855EVO SilentDrive Pro
- Merlin MR865EVO SilentDrive Elite
- Merlin MRC950EVO OverDrive
The E840M is also suitable for other compatible Merlin Security+ 2.0 operators and receivers.
Compatibility should always be confirmed against the exact opener model before ordering.
⚠️ Please Note
The Merlin E840M is a Security+ 2.0 wireless keypad.
It should not be confused with the older Merlin C840 keypad designed for the earlier Security+ system.
E840M Security+ 2.0 and C840 Security+ compatibility is different.
Always confirm the radio technology and model of your existing garage door or gate opener before ordering.
The keypad must be programmed to the opener before use.
For multiple compatible openers, a different PIN is programmed for each additional opener.
Install the keypad within sight of the garage door or gate, away from moving components and out of reach of children.
Merlin specifies a minimum installation height of approximately 1.5m.
The garage door or gate should only be activated when it can be clearly seen and the travel path is free from people, vehicles and other obstructions.
If you are unsure whether the Merlin E840M is compatible with your garage door or gate operator, contact our Technical Support team on 1300 733 066 for assistance.


