The Velleman DEM201 sound level meter provides reliable indicative measurements across a wide range from 30 dB to 130 dB, making it suitable for various environmental and workplace noise assessments. This compact instrument features a clear LCD display and offers both A and C frequency weighting options for accurate sound evaluations according to acoustic standard procedures. With a frequency range of 31.5 Hz to 8 kHz, it captures a broad spectrum of audible sound. The device includes selectable fast and slow measurement modes to adapt to different noise characteristics and measurement requirements. Made from durable ABS material, the meter measures 189 x 62 x 32 mm and weighs 178 g including the battery, ensuring excellent portability for field use and on-site inspections. It operates with a single 9V zinc-carbon battery and features an automatic shut-off function after 15 minutes of inactivity to save energy and extend battery life. Additional practical features include a data hold function for recording measurements and a backlit display for visibility under various lighting conditions. The sound level meter is designed to operate in a temperature range of -20°C to 60°C and up to 90% humidity, making it robust in various environments. It is important to note that this instrument is intended for indicative measurements only and does not comply with the IEC 61672-1 standard for precision sound level meters, thus it is not suitable for official conformity or regulatory measurements. The Velleman DEM201 serves as a practical tool for preliminary noise assessments, educational purposes, and general sound monitoring applications where indicative readings are sufficient.