The Browan Sound Level Sensor TSL100-868 is a compact LoRaWAN sound-level sensor that measures noise in A-weighted decibels, matching the human ear's response. It suits machine-noise monitoring, office occupancy inference, and anti-social noise-pollution detection in smart buildings and industrial sites.

Key specifications

• MEMS microphone; 40–100 dB(A) measuring range, 1 dB resolution
• 100 Hz to 10 kHz frequency response
• Measures every 5 minutes; transmits hourly plus on configurable threshold (default 80 dBA)
• Also reports temperature and battery level
• LoRaWAN 1.0.3, EU868 band (863–870 MHz), +17 dBm TX power
• Battery: 3.6 V ½ AA Li-SOCl₂, 1,200 mAh — up to 16 months lifetime
• Compact 50 x 20 x 50 mm housing, 40 g with battery; IP40 equivalent indoor use
• Type approvals: CE / FCC

Works with any EU868 LoRaWAN network server; open payload decoders available.