Loop listener/output strength meter
The loop listener is designed to allow the measurement of loop field strength within an area covered by an induction loop (AFILS) system. The Loop listener has many features which make it ideal for periodically testing all induction loop installations. An "A weight" filter is used allowing measurements of the audio as the loop is heard by the human ear, this also rejects mains hum allowing accurate assessment of loop installations in areas of high electrical noise. All measurements are taken with 0dB defined as 100mAM-1 RMS using a 125mS PPM response rectifier in line with IEC118.

Using the loop listener held vertically, walk through the area covered and test the average level of the loop field a blue LED will glowto let you know the loop system is working to standard. It is also has a speaker output so you can hear the loop system is working satisfactually ie not distorted.

Features
High range (+6dB) range
Speaker ouput for sound moitoring
Headphone socket for headphones
Telecoil and microphone pick up
Filter Conforms to IEC118
Belt Clip

Specification
On/off indicator: flashing red LED
Display type: 1blue LED
Battery: 9V PP3
Field sensitivity: 1mAM-1
0dB reference 100mAM -1

TOP