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M357T Replacement Kit


Manufacturer: Meta

Stock Level: 6

Product Information

Plug & play replacement kit for the Meta M357(T) & Gemel E587 only (Not M351a, M355 or M357TV2). Replaces faulty alarms or alarms which do not have the codecard. This unit comes with a custom made plug & play adapter loom, in most cases the replacement will be up and working within minutes. Simply remove the cable covers from the old alarm & swap over the plug into the replacement adapter socket, job done. Complete with easy to follow instructions.

The M357 is no longer being manufactured, we have developed & plug & play kit based on the Defcom3.1b alarm system. This has all the same functions of the original alarm but uses only on eimmobiliser circuit, as such this is not an approved device, however it will still behave and act as the original unit. The kit includes alarm module, two HPA TX fobs, codecard spare LED & fittings. Will function with existing seat sensor (if fitted)

Please make sure you choose the correct alarm kit for the connector(s) fitted to the bike. This kit is for the M357(T) & Gemel E587 (Same plug as the M357)

ID Tag Option:

If choosing the ID Tag the 'Auto Arm' option above can also be added & will function seamlessly with the ID Tag (Auto-Arm option can also be added if using the standard fobs, but the alarm will need to disarmed every time you want to move or use the bike - can be put into service mode so the alarm will not interfere when servicing the vehicle), the alarm will automatically disarm when the Tag is within 10 metres of the alarm unit. Please note if the alarm is armed by pressing either the standard fob or ID tag button it will also need to be disarmed using the button, it will not automatically disarm even when using the ID Tag. When using the Tag button there is usually a 3 secound delay, this is normal, when using the Tag normally there will be no such delay, there is no delay when using the standard fobs.

The ID tag & any programmable options can only be added when ordering a new Defcom3.1b, if required at a later date the alarm unit complete with all fobs will need to be returned to us for re-programming, extra charges will be incured. The TXM252 or HPA Evo fobs can be added at any time using the 5 digit override code

Free Faraday pouch when the B9.5 ID Tag is ordered, stops communication with the alarm should the tag be in a nearby area


Option upgrade to M252 keyfob, supplied with keyfitting kit (not supplied with key element)



  • Two anti-scan / antigrab, rolling code micro transmitters
  • Passive arming single circuit immobiliser
  • Passive arming for full alarm system (optional)
  • Hazard flash
  • Battery Backed Up Siren 
  • Visual and audible arming signals (selectable)
  • Secure override facility activated by the owners individual PIN code in the event of loss or damage to transmitters
  • Diagnostic LED
  • Internal Movement sensor (can be excluded)
  • Loud 114db remote siren
  • Sleep mode with zero battery drain after 5 days
  • Low 1.8 mA current consumption
  • Low bike battery warning when disarming
  • Auto re-arm of immobilisation if ignition is not turned on within 50 seconds
  • System test facilities in first 25 seconds of arming informs of any faults
  • Panic facility
  • Movement sensor deletion facility
  • Two additional protection circuits
  • Facility to power auxiliary modules (additional siren and/or omni-directional lift and tilt sensor)
  • Alarm automatically re-arms if triggered
  • Upgrade to key remote
  • Operating temperature -25C to 85C
  • Ultra Small - Maximum Dimensions 9.5cm X 6cm X 3.5cm (LxWxH - Plug not connected)
  • Optional magnetic seat sensor
  • Optional equipment on KTM motorcycles
  • Also Approved by Yamaha UK
  • East to follow fitting instructions
  • Three year no quibble warranty (1 Year if supplied to outside the UK) 
  • Telephone & Email technical support

Product Code: M357 Defcomt


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