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White rectangular outdoor sensor pair with alignment viewfinders and LED indicators

SPT SECURITY

SPT SECURITY 15-946 outdoor dual-beam photoelectric smart sensor

SKU CH-KBD8-YC5TZ MPN 15-946

Dual-beam photoelectric sensor detects intruders across 30 to 60 metres outdoors with auto gain control for rain, fog and snow

  • Product typeAccessories
  • Key featuresAuto Gain Control Circuit apply to any environmental conditi
  • Reliable detection in rain, fog or snow thanks to Auto Gain Control circuit
  • Quick beam alignment via separate receiver LEDs for alignment, signal level and alarm
  • Precise optical adjustment with built-in viewfinders and horizontal plus vertical controls
  • Tamper-resistant cover and surge absorption protect against interference and lightning damage
  • Flexible outdoor coverage from 30 to 60 metres with adjustable blocking time for target speed

Outdoor dual-beam photoelectric sensor

The SPT SECURITY 15-946 is an outdoor dual-beam photoelectric smart sensor designed for perimeter protection. It uses separate transmitter and receiver units to create an invisible detection barrier across driveways, boundaries or building approaches. Auto Gain Control circuitry allows the beams to maintain reliable operation through rain, fog, snow and other environmental conditions.

Sustained detection performance

The sensor provides a protection range of 30 to 60 metres outdoors and 90 to 180 metres indoors. Blocking time adjustment lets installers tune the response to specific target movement rates, reducing false triggers from brief interruptions. Tamper protection and a surge absorb circuit guard the electronics against physical interference and thunder-induced voltage spikes during continuous operation.

Alignment aids and environmental sealing

Built-in viewfinders and dual-axis adjustment at both ends simplify optical axis alignment, while separate receiver LEDs confirm beam alignment, received light level and alarm status. A mist-hung preventing cover design helps keep the optics clear in damp conditions, and the transmitter power LED gives immediate visual confirmation that the link is active.

How it compares

Measured against everything we stock in Alarm Kits & Motion Sensors, at today’s prices. Recalculated every night.

Price $55.99
Pricier than about 79% of the 180 comparable items (median $30.99).

Specifications

Product
Brand nameSPT SECURITY
Model name15-946
Product typeAccessories
Size & build
Shipping weight0.91 kg
Package size203 × 152 × 102 mm

Questions about this item

How much power does the 15-946 draw when it runs continuously outdoors?

The sensor uses an Auto Gain Control Circuit that adapts to rain, fog or snow, and a Surge Absorb Circuit protects it from thunder damage during all-day operation.

What separate power source or wiring must I already have to install the 15-946?

The transmitter shows a power LED and the receiver provides alignment, signal-level and alarm LEDs, so a low-voltage supply and cable run to both units are required before mounting.

Will the 15-946 work reliably alongside an older 30-metre perimeter beam I keep on the same fence line?

Outdoor protection range is 30~60 m, while indoor reach extends to 90~180 m; blocking-time adjustment lets you tune detection speed so the two systems do not interfere.

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