NIM-20B

The Aiphone LER-20 is a compact wall-mount chime extension speaker designed to extend call tones from Aiphone intercom master or sub stations to remote locations like hallways, offices, or nurse stations.
It provides clear audible chime alerts without two-way communication capability and features adjustable volume settings for flexible installation.
Key Specifications
Feature
Specification
Mounting
Surface mount or single-gang box
Volume Control
3-position (high/medium/low) ​
Power
Supplied from master/sub station
Wiring
Pigtail wires, non-polarized single pair ​
Dimensions
120 × 88 × 29 mm (4-3/4" × 3-1/2" × 1-1/8") ​
Weight
150 g (0.33 lbs) ​
Compatibility
DB/JF/JK/JO/KB/NEM/NIM Series ​
Material
Plastic housing