Williams AV ICS‑55 Infrared Dome Sensor

The Williams AV ICS‑55 is a ceiling-mounted infrared dome sensor, engineered for optimal performance in classroom audio systems. It captures infrared transmissions from wireless microphones and relays them to the amplifier, offering reliable, 360° coverage without microphones or speakers included.

This sensor installs seamlessly in drop ceilings using a pre-attached T-bar bracket, or mounts on solid surfaces using screws. It connects to Williams AV amplifiers via a plenum-rated RCA cable and is powered by the amplifier. The green LED indicates when the sensor is receiving power.

Key Features

• Mounting: Pre-attached T-bar bracket for drop-ceiling; alternative surface mounting via screws
• Receiving Diodes: Six large fisheye-style diodes for superior infrared reception
• Coverage: 360° reception within a range of 40–50 ft (lines of sight), up to 2,500 sqft
• Cable & Connection: 50ft dual-shielded, plenum-rated RCA cable; female RCA connector; supports up to 2 additional sensors per amplifier
• Indicator: Green LED lights when powered by amplifier; no LED when not receiving power
• Power Source: Supplied via RCA connection from the Williams AV amplifier
• Installation Tip: Install at least 3ft away from video projectors; ideally positioned at room’s center for best reception
• Warranty: 5-year warranty (where applicable)

Technical Specifications

• Dimensions: 4.625″ diameter × 1.325″ height (≈11.75cm × 3.37cm)
• Weight: 7.4oz (≈0.46lb; ≈0.21kg)
• Operating Frequency: 2.3–2.8MHz
• Coverage Area: Up to 2,500 sqft within 40–50ft line-of-sight
• Receiving Diodes: Six large fisheye diodes for full 360° coverage
• Cable: 50ft dual-shielded, plenum-rated RCA cable; supports up to 100ft maximum
• Housing Material: Tinted polycarbonate
• Power Indicator: Green LED when powered
• Power Supply: Provided by Williams AV amplifier through RCA

What’s Included

• 1x ICS‑55 Infrared Dome Sensor (ceiling-mounted)
• 1x Pre-attached T-bar bracket
• 1x 50 ft plenum-rated RCA cable with female RCA connector