The Audio Recording Module is a very high audio quality with a small size and ultra low power consumption.

The Audio Recording Module can work in continuous recording with length of 30 days without a battery or memory card replacement. The audio module is designed for battery operation or with power supply in range 3.0 - 6.0V.

This item ships from the Czech Republic and takes up to 1.5 to 2 weeks to arrive.

Using a very sensitive microphone, which can record any conversation in distance over 10 meters makes it a desirable, discreet, secret installation.

The Covert audio recording monule comes in two versions:

• Standard Grade; Standard micropone
• Professional Grade; High qualithy Knowless microphone, and audio encryption

Voice activation is standard, with four different compression modes, and a sample rate up to 44kHz. You also have different battery clips. All records are stored on replaceable micro SDHC card.

Included and powerful software gives you easy overview of long records with precision time code. An optional 128bit strong encryption (LR32-PRO only) can encrypt all stored audio data.

Other functions:

• AGC - microphone automatic gain control
• Voice activated recording
• Real time clock for periodical recording
• Easy slide switch operation

Audio Recording Module Technical Data:

• Dimension: 17,5 x 27x3mm
• Power supply voltage: 2,8-6,0V
• Maximum recording time: over 70days (with 16GB card)
• Card type: Micro SDHC card
• Signal-to-noise ratio: 65dB
• Storage format: 16bit uncompressed, logaritmic, 4bit ADPCM or 2bit ADPCM
• Sample rate: 44kHz, 22kHz, 16kHz, 11kHz, 8kHz, 5.5kHz
• Bit width: 16bit
• Built-in microphone sensitivity: 8-10m
• Power consumption in stand-by mode: <50uA
• Power consumption in VAS mode: 1,6mA at 3,0V
• Voice activated recording: yes
• AGC function: user selectable automatic gain control or fixed microphone gain
• Exporting format: by using included software, WAV format
• Scheduled recording: selectable daily period, week period or calendar
• Operating mode select: slide switch
• Microphone type: high quality Knowless (only LR32-PRO version)
• Audio encryption: strong 128bit encryption of stored audio files (only LR-32PRO version)

Power consumption in different recording modes based on 3.0V voltage supply in [mA]:



The current is calculated when the 3,0V voltage is used. When you have a higher voltage or for example 6,0V batteries, the consumption is decreased with the increasing voltage in proportional way.

Battery life for different operating modes in continuous recording mode with CR-123 type battery [in days]:

 
This product ships from the Czech Republic and takes 1-2 weeks to arrive.