Principal features are:
  • Range - up to 100m line of site
  • Frequency - 418MHz UHF (or 433MHz with transmitter output power of 10mW
  • Transmitter output power - 0.25mW maximum
  • Battery economiser - on all receivers, programmable on or off
  • Auto-confidence transmission - from all TX-500 transmitters, programmable from 6sec to 29min between transmissions
  • Licence compliance - MPT 1340 in the UK, 89/336/EEC in the EU and FCC in the USA



Standard Two Button Key Fob Transmitter - TX-400
Matchbox sized unit with built-in confidence light to confirm correct operation; Low battery condition indicator, automatically signalled to receiver and two status conditions.

Principal features are:
  • Up to 100m range, line of sight
  • Very simple to operate
  • Covert in operation
  • Long battery life
Designed for:
  • Persons at risk in social, business and other situations
  • Police officers
  • VIPs
  • Security personnel
  • Business executives

Intelligent Two Button Key Fob Transmitter - TX500/1
Match box sized unit with built-in LED; Confidence Signal transmitted at period from 5sec to 30min (programmable) which Confirms correct operation of receiver and in-range location; Low battery condition indicator, automatically signalled to receiver and two status conditions.

Principal features are:
  • Up to 100m range, line of sight
  • Auto confidence transmissions
  • Very simple to operate
  • Covert in operation
  • Long battery life
  • Able to be set to any one of four identities
  • Fully programmable
Designed for:
  • Persons at risk in social, business and other situations
  • Police officers
  • VIPs
  • Security personnel
  • Business executives



Intelligent Microswitch Activated Transmitter TX500/2
Small in size- 85x45x15mm case; Confidence Signal transmitted at period from 5sec to 30min (programmable) which Confirms correct operation of receiver and in-range location; Low battery condition indicator, automatically signalled to receiver and two status conditions.

Principal features are:
  • Up to 100m range, line of sight
  • Auto confidence transmissions
  • Long battery life
  • External power option
  • Very simple to operate
  • Covert in operation
  • Make or break operation (programmable)
  • Able to be set to any one of four identities
  • Fully programmable
Designed for:
  • Covert/overt lever-activated switching
  • Long/short term operation

Intelligent Light Activated Transmitter TX500/3
Small in size- 85x45x15mm case; Confidence Signal transmitted at period from 5sec to 30min (programmable) which Confirms correct operation of receiver and in-range location; Low battery condition indicator, automatically signalled to receiver and two status conditions.

Principal features are:
  • Up to 100m range, line of sight
  • Auto confidence transmissions
  • Long battery life
  • External power option
  • Very simple to operate
  • Covert in operation
  • Light or dark operation (programmable)
  • Able to be set to any one of four identities
  • Fully programmable
Designed for:
  • Covert/overt light-activated switching
  • Long/short term operation



Ultra Miniature Transmitter TX500/4
Printed circuit board only 26x32x6mm case; Confidence Signal transmitted at period from 5sec to 30min (programmable) which Confirms correct operation of receiver and in-range location; Low battery condition indicator, automatically signalled to receiver and two status conditions.

Principal features are:
  • Up to 100m range, line of sight
  • Auto confidence transmissions
  • Long battery life
  • Very simple to operate
  • Covert in operation
  • Fully programmable
  • Can be set to any one of four identities before despatch from the factory
Designed for:
  • Use where concealment is of high priority
  • Long/short term operation


Portable Receiver - RX-400
Designed primarily for Close quarter requirements

Principal features are:
  • Bleep or silent vibrate mode
  • Monitors up to four transmitters (twin status)
  • Self contained power supply with battery economiser
  • Audible alert if jammed by interference
  • Transmitter low power indication
  • Fully programmable
Designed for:
  • Ease of concealment (only 98x61x32mm in size)
  • Carrying in a pocket or worn on a belt



Desktop Receiver - RX-500
Designed primarily for Close quarter requirements for ranges up to 300m, line of sight.

Principal features are:
  • Monitors up to four transmitters (twin status)
  • Self contained power supply with battery economiser
  • External power option
  • Audible alert if jammed by interference
  • Transmitter low power indication
  • Louder alarm signal with volume control when used with external power
  • Remote loudspeaker facility
  • Various antenna options
  • Fully programmable
  • PC interface kit for use with MINDA family programming kit
Designed for:
  • Static base locations
  • Motor vehicle installations
  • Remote switching of external equipment on receipt of any red alarm

8 Channel Portable Receiver - SRX-408
Designed primarily for Close quarter requirements

Principal features are:
  • Bleep or silent vibrate mode
  • Monitors up to eight transmitters (single status)
  • Self contained power supply with battery economiser
  • Audible alert if jammed by interference
  • Transmitter low power indication
  • Fully programmable
Designed for:
  • Ease of concealment (only 98x61x32mm in size)
  • Carrying in a pocket or worn on a belt




Portable or Mobile Repeater - High Power Output - MR418/458H
Designed to receive transmissions from the 418Mhz Low power transmitter range and convert the signal to 458MHz and re-transmit the signal at 458MHz and at high power to an RX-458 receiver. Extends range of low power transmitter up to 6km.

Principal features are:
  • Self contained power supply with battery economiser
  • External power option
  • Auto switching to internal power should external power fail
  • Adjustable output power
  • Concealed LED display for performance monitoring
  • Un-manned operation
  • Various antenna options
  • Robust construction
Designed for:
  • Extending range of low power transmitters
  • Reliable signal transmission
  • Total flexibility of installation
  • Ease of concealment (only 187x100x40mm in size)
  • Long or short term installations
  • Long range applications

Portable or Mobile Repeater - High Power Output - MR433/458H
Specification as repeater above but receives transmissions at 433MHz and re-transmits at 458MHz


A full range of accessories from various antenna options to power supplies to carrying cases.

Description Product Code
Base station antenna 418/433MHz BS-418/433
Mag base antenna 418/433MHz MB-418/433
Mag base antenna 458MHz MB-458
Mains adapter AD1
Vehicle adapter AC1
Programming kit SK1
Programming I/F Unit SK2
Small carrying case CC1
Large carrying case CC2




K-Tech (UK) Ltd,
4, Oban Court, Hurricane Way, Wickford Business Park,
Wickford, Essex SS11 8YB
tel: 01268 767304 fax: 01268 768021