A Piezo based wireless audio recorder (single channel) intended for quick and simple leak survey. Robust design that fits both onto an M8 thread of the listening stick and an attachment magnet. Connects to the AQS cloud with any mobile phone platform (Android / iOS).
Key Features
• Realtime streaming of the sample to the AQS cloud and to mobile phone headset
• Connect to any mobile phone platform (Android / iOS)
• Robust IP67 enclosure
• Rechargeable battery that fits 5 days of survey between charging
• Buttons and LED feedback on board the device – allowing to interact directly with the sensor
• Built in self-test / built in self-calibration
Preliminary Specification
Audio / Recording performance
- Sampling Frequency 8KHz (configurable)
- Dynamic Range 24bit
- Noise cancelation Internal EMI suppression
- Audio streaming delay <0.5 seconds
Wireless Connection
- Connection type BLE 5.0 (2.4GHz)
- Antenna Internal chip antenna -2dBi
- Transmit power +10dBm
Interface
- Buttons 2 buttons to power up/down, BLE pair, Record
- LEDs
- Daylight RGB LED
- Blue – BLE
- Green – Power mode On/Off, Charging status
- RED – Recording
- Identification Unique ID for each device, blink & vibrate on request
Power Consumption
- Internal battery Rechargeable Li-Ion 660mA/H (IEC62133, UN38.3)
- Battery protection circuit Shortcut, Over-voltage (4.2V), Over-discharge (3.0V)
- Operation time between recharge 112 hours
- Full cycle recharging <5 hours
- Charging port Magnetic pogo pin at 5V (using a standard mobile phone charger)
- Rechargeable battery life >3.5 years, may be replaced on device service
- Power management Auto sleep / Auto shutdown
Miscellaneous
- Firmware upgrade Over BLE
- Push buttons durability >100K press
- Attachment magnet interface Supplied with 2 magnets: N12 and N19 grade
- Operational temperature range (-4F˚ to 140F˚) (-20C˚ to 60˚C)
- Dimensions ( H= 4.92”, Ø1.85”) (H=125mm, Ø47mm)
- Weight 7oz (200 gr)
- Certification UL94-V0, CE, FCC