The ML-403R is a mini wireless remote control with 6 independent function buttons, designed as an additional handset for DEFENDO alarm panels. It operates on 433 MHz and achieves a working range of 100 m, making it practical for use across a typical residential property.

The remote is powered by two CR2032 lithium batteries with an expected service life of approximately one year. It is programmed through the Installer Menu of the alarm system and is compatible with panels operating on a fixed frequency of 443 MHz.

Key Features

• 6 independent function buttons with pictograms for each key function
• Supports: ARM, DISARM, HOME ARM, and SOS / emergency call
• Operating range: 100 m
• Frequency: 433 MHz
• Code: 28-bit ID, 8-bit function code, 36-bit date code — millions of unique combinations
• Powered by 2 × CR2032 lithium batteries (included)
• LED indicator on transmission
• Grey colour

Product Benefits

• 6 dedicated buttons allow direct one-touch access to arm, disarm, home arm, and emergency call without navigating menus
• Pictogram labels on each key make the remote easy to use without consulting a manual
• Millions of code combinations ensure secure, unique identification for each unit
• Low power consumption extends battery life to approximately one year
• Compact size means the remote fits easily on a keyring or in a pocket

Technical Specifications

• Model: ML-403R
• Buttons: 6 independent function keys
• Operating Range: 100 m
• Frequency: 433 MHz
• Code: 28-bit ID, 8-bit function code, 36-bit date code
• Voltage: 5.8 V–7 V (from 2 × CR2032 lithium batteries)
• Battery Life: Approximately 1 year (2 × CR2032)
• Transmission Indication: LED lighting
• Operating Temperature: -10 °C to +50 °C
• Colour: Grey
• Compatible Panels: DEFENDO alarm panels (fixed frequency 443 MHz)

Why You'll Love It

• Adds extra remote-control points to an existing DEFENDO system without rewiring
• The 100 m range covers the full extent of most homes and driveways
• Programmed via the existing installer menu — no specialist tools required
• Compact and lightweight design for everyday carry