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Aviary Court, Wade Road,
RG24 8PE, UK

+44 (0)1256 475555
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+44 (0)1256 475555
Aviary Court, Wade Road, Basingstoke, Hampshire, RG24 8PE, UK
Quad / TXF-125E



Performance was very good, and all breaches were correctly detected and signalled. These included rapid motion and attempts at evading detection. Even in poor climatic conditions the detectors were both reliable in terms of catch performance and stable in equal measure.

Benchmark Magazine, Intruder Test: Wireless Active IR Detectors
April 2016

>> click to view full test

up to 25m up to 50m up to 75m up to 100m

The TXF-125E is a battery operated quad photoelectric beam sensor designed for compatibility with leading wireless systems; reducing the time and cost of permanent installations and allowing the use of Active Infrared Beams on rapid deployment or temporary installations. With 4 selectable frequencies, multiple beam sets can be used in both linear and stacked configurations without risk of crosstalk, further assisted by a transmitter power function that allows the user to set 25/50/75/100m zones.

Two 3.6V (17Ah) batteries can power each unit for approximately 5 years of service, and ±90° horizontal/±20° vertical adjustable optics cater for the most dynamic of terrains.


  • 4 x synchronised high power beams
  • 4 selectable operation ranges 25/50/75/100m
  • 4 selectable beam channels to prevent crosstalk
  • up to 5 year battery life using 2 x LS 33600 (3.6V 17Ah) batteries per unit
  • increased beam separation minimises nuisance alarms
  • vivid internal colour aids beam alignment procedure
  • ±90° horizontal ±20° vertical adjustable sensor heads
  • environmental monitoring circuit
  • IP65 housing



  • Specifications
  • Downloads

Model TXF-125E
Detection system Near infrared pulsed beam interruption system (TR-RE 4 beam simultaneous interruption)
Infrared beam Single modulation pulsed beam by LED (near infrared beam light-emitting diode)
Protection distance Outdoor 330ft (100m) or less
Beam power setting 330ft (100m) / 245ft (75m) / 165ft (50m) / 82ft (25m)
Max. arrival distance 10 times (1000m)
Response time 0.05 sec, 0.10 sec, 0.25 sec, 0.5 sec
Battery SAFT: LS 33600 (or equivalent) 3.6V, 17Ah
Battery life Transmitter = Up to 5 years* (2 batteries)
Receiver = Up to 5 years* (2 batteries)
*Approximate, not guaranteed
Beam adjustment Horizontal: ±90°, Vertical: ±20°
Alarm LED Red LED (Receiver) ON: when an alarm is initiated
Attenuation LED Red LED (Receiver) ON: when an alarm is initiated
Ambient temperature range -10°C to +50°C (14°F to 122°F)
Functions Modulated beam frequency selection
Tone indicator
Repeat output
Monitor jack
Response time adjustment
Upper/Lower beam switch
Low battery indication
Wireless alignment checker connecting function
Battery saving function
Battery sharing
IP rating IP65
Mounting positions Outdoor, Indoor
Weight Transmitter: 1.5kg (without batteries), Receiver: 1.5kg (without batteries)
Appearance Cover: PC resin (Wine Red), Base: ASA resin (Black)

The specifications are subject to change without notice.

Instruction Manual