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Twin / PB-100ST



The PB-100ST takes our Twin beam technology and increases the pitch between upper and lower beams for greater stability in open-field environments.

For distances up to 100m (330ft) outdoor / 200m (660ft) indoor.

note: The PB-100ST is a 'Single Channel' unit for use in simple beam systems. For more complex systems eg. multiple stacked beams or in-line systems use PB-TE (mini Twin) or PB-IN-HF (Quad) series 4-Channel units to avoid 'Crosstalk'.


  • Synchronised Twin Beams for high reliability
  • Double Modulated beam for unsurpassed immunity to direct and reflected sunlight, vehicle headlights and other light sources.
  • Built-in view finder and monitor jack output for easy beam alignment
  • 180 degree rotating optics for increased installation flexibility
  • Automatic Gain Control circuit



  • Specifications
  • Downloads

Model PB-100ST
Product type Photoelectric Beam Sensor
Detection system Simultaneous breaking of 2 beams
Infrared beam LED pulsed beam, Double modulation
Protection distance Outdoor 100m (330ft) or less
Indoor 200m (660ft) or less
Max. beam range Outdoor 1000m (3300ft) or less
Indoor 1000m (3300ft) or less
Response time 50msec. to 700msec. (Variable at pot)
Supply voltage 10V to 30VDC (Non-polarity)
Current consumption 80mA or less
Alarm output Dry contact relay output form C
Contact action : Interruption time + delay time
Contact capacity : 30V AC/DC, 0.5A or less
Tamper output Dry contact relay N/C
Action : Activated when cover is detached
Contact capacity : 30V AC/DC, 0.5A or less
Alarm LED Red LED (Receiver)
ON : when an alarm is initiated.
Attenuation LED Red LED (Receiver)
ON : when beam is attenuated.
Functions Monitor jack output, AGC circuit, Frost proof cover
Ambient temperature range -25°C to +60°C (-13°F to +140°F)
Mounting positions Indoor / Outdoor
Wiring Terminals
Weight Transmitter : 1200g (42oz)
Receiver : 1200g (42oz)
Appearance PC resin (wine red)