Cirrus research CR:202/4 SoundSign Remote Display Unit (SHH! Quiet Zone; 40dB(A) ~ 114 dB(A))

Sound Sign Remote Unit "SHH! Quiet Zone"

Trigger level: 40dB(A) to 114 dB(A) in 1dB Steps

Microphone: MK:112

Frequency weighting: ‘A’ Weighting to IEC 61672-1:2002

Time weighting: Slow to IEC 61672-1:2002

Visual indication: 

High-intensity white LED with four standard designs

User selectable brightness levels

Display delay time: None or 30 seconds

External power: 2.1mm power jack, 12v DC via mains power supply

Output Connector: 

Control for Remote Display Units via standard 2.1mm power

Up to three Remote Display Units can be powered from a

Master Unit

Dimensions: 304.8mm (12”) diameter, 50.8mm (2”) depth

Weight: 0.6kg (1.3lbs)

Mounting: 2 x keyhole mounting slots

Data logging:

CR:203 USB Data Logger with 32,000 samples of LAS (Slow ‘A’ Weighted Sound Level)

User-selectable 1 second (9 hours), 10 seconds (3.7 days), 1 minute (22 days) sampling

Datasheet

Manual