Ajax - MultiTransmitter Jeweller - White Indoor module for connecting Wired alarms to Ajax systems
Images are for illustrative purposes and actual product may differ.
AJAX-MT-INDR-W
AJAX smart alarm
Ajax
AJAX-MT-INDR-W information and overview
Ajax - MultiTransmitter Jeweller - White Indoor module for connecting Wired alarms to Ajax systems, 18 zones for connecting devices, Sabotage-proof body, 3 Power lines, Add Backup Battery, 1927321-62-WH1
Specifications & more information about AJAX-MT-INDR-W, AJAX smart alarm manufactured by Ajax
Product information notice: Some specifications may describe a broader product range and may not apply to this exact model. Use the product summary above as the primary model reference. Bundled software may be trial software and can require a separate licence.
Overview:
MultiTransmitter Module for connecting wired alarm to Ajax and managing security via the app
The second life of an old wired alarm We understand how difficult it is to decide on a wired alarm upgrade. It is a common situation when your system is still capable of protecting your property but is clearly outdated. Renovating with Ajax doesn't force you to leave behind the current equipment. It gives you a chance to build modern complex security based on existing wired equipment.
Features:
Security via smartphone With MultiTransmitter, system users get security control via app, data-rich notifications, and automation scenarios. An installer can set up the system or device in the PRO-app, both while on-site and remotely.
More Ajax features Perimeter IR detectors, household gas sensors, thermostats, float sensors, and other devices are ready to expand the Ajax areas of use. Connect them to a hub via MultiTransmitter and manage the combined security system in the Ajax app.
Less hassle with automated security Use automation scenarios so that the security system instantly responds to threats without waiting for police. Ajax will be armed by schedule, turn on the light by the alarm of a motion detector, switch off the potential cause of ignition at the first sign of fire. With MultiTransmitter, an old alarm system becomes part of a safe and smart home.
Data-rich alarms With MultiTransmitter, you can specify the device name, the type of alarm and a room for each wired device. This makes notifications more informative - you know not just what happened but where. This information is displayed using push notification, SMS, and is also sent to the security company's monitoring station using an appropriate code. A total of 9 types of alarms are available: intrusion, fire alarm, auxiliary alarm, panic button, gas alarm, leakage, tamper alarm, malfunction, custom (service event).
Radio communication without reliability compromises MultiTransmitter communicates with a hub via an encrypted Jeweller radio protocol. This is a TDMA technology developed by Ajax Systems for uninterrupted communication with devices. Jeweller detects jamming attempts, switches to the backup frequencies in case of interference, and allows Ajax wireless devices to run on battery power for years.
Security without barriers When using radio signal range extenders, Ajax security system's radio network can cover up to 35 km2 . But if some rooms are impermeable to radio waves, connecting wired devices via MultiTransmitter is the best solution. The length of wires can reach 400 meters.
Protected against sabotage MultiTransmitter will inform you instantly if the connected devices have been interrupted with short circuit, disconnection of the signal cable, or tampering alarm. Electricity loss at the site will not be a problem either - the backup battery can provide power to devices for up to 4 days. MultiTransmitter body itself is equipped with two tampers that respond to removal of the integration module from the surface and removal of the lid.
Instant connection loss detection with wired device (EOL)
Free space in the body for a backup battery 7 Ah
2 tampers that detect dismounting and opening of the body
Made by professionals for professionals We made sure that the installation and setup process does not require any extra time or effort. Like other Ajax devices, MultiTransmitter connects to a hub in the app by scanning a QR-code. When connecting wired devices, you don't need to know the resistors' resistance values. The system will also warn you if a device was not connected correctly.
The Hub control panel does not support the 2EOL and 3EOL connection types. Other hub models require the OS Malevich firmware version 2.13 or higher to support such connection types.
Compatible range extenders
All Ajax radio signal range extenders
Communication with a hub or range extender
Jeweller communication technology
Proprietary wireless communication technology to transmit alarms and events.
It features:
Two-way communication.
Advanced anti-sabotage.
Block encryption featuring a dynamic key.
Instant notifications.
Remote configuration via the Ajax apps.
Frequency bands
866.0 - 866.5 MHz
868.0 - 868.6 MHz
868.7 - 869.2 MHz
905.0 - 926.5 MHz
915.85 - 926.5 MHz
921.0 - 922.0 MHz
Depends on the sales region.
Maximum effective radiated power (ERP)
up to 20 mW
Radio signal modulation
GFSK
Radio communication range
up to 2,000 m
Between an integration module and a hub/range extender in an open space.
Calculate radio communication range
Encrypted communication
All the data stored and transmitted are protected by block encryption with a dynamic key.
Radio frequency hopping
To prevent interception and jamming.
Wired devices connection
Number of zones
18 wired zones
Multiple devices can be connected to one zone. The number of connected devices depends on their power consumption.
Type of connection
NC, NO, EOL
MultiTransmitter with a firmware version lower than 2.13.
NC, NO, EOL, 2EOL, 3EOL
MultiTransmitter with a firmware version 2.13 and higher. The Hub control panel does not support the 2EOL and 3EOL connection types. Other hub models require the OS Malevich firmware version 2.13 or higher to support such connection types.
EOL resistance
from 1 kΩ to 7.5 kΩ with 100 Ω increment
MultiTransmitter with a firmware version lower than 2.13. EOL resistance is measured automatically in the Ajax PRO apps.
from 1 kΩ to 15 kΩ for each resistor, up to 30 kΩ of total resistance
MultiTransmitter with a firmware version 2.13 and higher. Resistance is measured automatically for each EOL resistor in the Ajax PRO apps.
Cable length
up to 400 m
When using a signal cable with a 0.22 mm² copper-clad aluminium conductor.
Operation mode
pulse, bistable
Adjusted by a PRO or user with admin rights in the Ajax app.
Event type
9 types of events for each wired zone
Intrusion
Fire
Medical help
Panic button
Gas alarm
Tamper alarm
Malfunction
Leakage
Custom
Adjusted by a PRO or user with admin rights in the Ajax app.
Recommendations
Recommendations
The device is powered from the 110-240 V~ mains and designed for indoor use only.
Anti-sabotage protection
Tamper alarm
Two tampers to detect the MultiTransmitter casing opening and alert about detachment from the wall.
Protection against spoofing
with the integration module authentication
Communication loss detection
within 36 seconds
Between a hub or range extender and MultiTransmitter. The detection time depends on the Jeweller or Jeweller/Fibra settings.
Instant detection of wired connection loss, short circuits, and malfunctions
when using EOL/2EOL/3EOL connection type
Depends on the connection type.
Power supply
MultiTransmitter power supply
100-240 V~, 50/60 Hz
MultiTransmitter backup power supply
12 Vdc, up to 7 Ah capacity with a full charge cycle of up to 30 hours
The backup battery is not included in the set.
Connected devices power supply
10.5-15 Vdc, up to 1 A of total maximum current consumption
Four power lines powered by MultiTransmitter: one for fire detectors, and three for other devices.
Casing
Dimensions
192 x 238 x 100 mm
Weight
805 g
Operating temperature range
from -10deC to +40degC
Operating humidity
up to 75%
Protection class
IP40
Colours
Colours
Black
White
Complete set
Complete set
MultiTransmitter board
Casing
Power cable
Screw terminal block Adapter (only for INCERT compliance)
Reviews have been submitted by users and do not necessarily reflect our own opinion.
The best price and guaranteed service and backup from official computer suppliers in South Africa for the AJAX-MT-INDR-W Ajax - MultiTransmitter Jeweller - White Indoor module for connecting Wired alarms to Ajax systems.
The Ajax
AJAX-MT-INDR-WAjax - MultiTransmitter Jeweller - White Indoor module for connecting Wired alarms to Ajax systems is available for R2775. The product is sold by ComX Computers as new. Prices are valid today 2026-09-28 (before , by quote, while stocks last). The product is expected to be in stock, although this is not guaranteed.
Available from this online computer store delivering door-to-door in Johannesburg, Cape Town, Port Elizabeth, Pretoria, Pietermaritzburg, Polokwane, Durban and all over South Africa.
Find related AJAX-MT-INDR-W Ajax - MultiTransmitter Jeweller - White Indoor module for connecting Wired alarms to Ajax systems products in our AJAX smart alarm Category for even more options. Read reviews and find out about AJAX-MT-INDR-W Ajax - MultiTransmitter Jeweller - White Indoor module for connecting Wired alarms to Ajax systems. Discounts, specials and cheap prices only at ComX Computers.