Williams Sound Induction Loop Systems


PROLOOP Field Strength Meter Plus

The new PROLOOP FSM Plus accurately measures the magnetic field strength of induction loop systems, according to IEC 60118-4:2006 and BS 6083, Para. 4. Designed for professional use, PROLOOP FSM Plus delivers reliable RMS values on the output level, response frequency, Automatic Gain Control (AGC) function, distortion and background noise in the tested induction loop. In addition, it enables the user to make an acoustic evaluation of the sound via earphones.


  • Conforms to IEC 60118-4: 2006 standard
  • Adjustment possibilities for two test ranges:
    • background noise
    • field strength
  • RMS-measuring range calibrated to 400mA/m = 0dB
  • Handy, light-weight, rugged chassis
  • Switchable A weighted filter

PDF Documents  Download ProLoop Specifications

Williams ProLoop Field Strength Meter Plus

Williams Sound PLA 90

Hearing HotSpot Counter LoopProduct Highlights

Public accommodation of individuals at key customer/visitor points of contact.

Compact and easy to install, this portable induction loop system readily accommodates individuals with hearing difficulties--at a bank teller window, information desk, store counter or anywhere customers/visitors need to hear what is being said. Hearing HotSpot picks up external voices with an integrated microphone or with an optional external microphone. The system transmits the spoken word directly and clearly to a listenerís hearing aid equipped with a T-coil. Designed to meet ADA accessibility requirements.


  • (1) Hearing HotSpot™ counter loop
  • (1) rechargeable 10x AA NiMH battery pack
  • (1) TFP 046 International Power Supply

PDF Documents  Download Hearing HotSpot™ Counter Loop Specifications
PDF Documents  Download ADA Hearing Assistance Plaque Manual
PDF Documents  Download PLA 90 - Hearing HotSpot Counter Loop Manual
PDF Documents  Download Hearing HotSpot™ Counter Loop Sell Sheet

Williams Sound Hearing Hotspot

Williams Sound PLR SR1

PROLOOP Receiver

Designed for use within a induction loop system by individuals who do not wear T-coil equipped hearing aids. This is a lightweight, under the chin style receiver with rotating eartips for hours of comfortable listening.

The PLR SR1 receiver requires CHG 518 5-bay, drop-in charger, sold separately.

PDF Documents  Download PLR SR1 Spec Sheet

Williams Sound PLR SR1

Williams Sound PLR PKG1

Induction Loop Receiver Package

Receiver package includes CHG 518 five-bay charger and three PLR SR1 receivers allowing user to add and charge additional receivers.

Williams Sound PLR PKG1

Williams Sound PLR BP1

Proloop Body Pack Induction Loop Receiver

Simple and convenient to use, this induction loop receiver is designed for use in induction-looped areas by listeners who do not wear T-coil-equipped hearing aids. Compatible with all IEC60118-4 compliant induction loop systems.

PDF Documents  Download Williams PLR BP1 Quick Set-Up Guide
PDF Documents  Download PLR BP1 Specifications
PDF Documents  Download PLR BP1 Sell Sheet

Williams Sound PLR BP1

Williams Sound PLA 215 - Hearing Hotspot Room Loop

This portable induction loop system readily transmits the spoken word directly and clearly to a listener's hearing aid equipped with a T-coil.

The PLA 215 is ideal for use at home or in small conference rooms up to 540 sq. ft. (50 sq.m). The system includes 120 ft. (37 m) of induction loop wire - simply fed from the amplifier and back to it again, forming a loop.

In addition to settings for basic volume and tone, the digitally controlled induction loop amplifier uses Automatic Gain Control to stabilize the volume for fluctuating input levels.

The device can accommodate the connection of two audio sources; choose your source with the quick touch of a button.

PDF Documents  Download PLA 215 Spec Sheet
PDF Documents  Download PLA 215 Manual

Williams Sound Personal Loop PLA 215