SPLmonitoring Unit An innovative hardware platform designed for the Internet, LAN, and wireless communications.   Features Benefits   Advanced DSP processing provides SPL measurements and industry-standard algorithms including: A, C, and Z spectral weighting; almost unlimited possible calculated functions using: Lmax, Lmin, Leq, Ln Lp Sophisticated calculations providing a flexible platform for multiple applications Embedded software easy to upgrade Embedded DSP features are configurable using web software Easily tailored to meet a wide variety of requirements and applications Open Architecture design provides a flexible Information Technology platform Easily accessible from any location using wired or wireless LAN and the Internet Continuous, real-time monitoring on a permanent or semi-permanent basis Easy to install and maintain reducing total cost of ownership Indoor and outdoor applications Flexibility in locating monitors in any urban or remote locations Compliant with Transducer Electronic Data Sheets (TEDS) standard IEEE 1451.4 providing auto identification and calibration data with Class 1 or Class 2 microphones Easy to install and ensures accurate measurements in multiple applications Programmable using SNMP and Email/SMS event alerts and triggers Flexible system providing customizable data accessibility on demand IEC 61672-1-2002 & ANSI S1.43-1997 Compliant Independently tested to comply with international standards SPLmicrophones High-quality measurement microphones and preamplifiers designed for SPLmonitoring unit.   Features Benefits   High-quality measurement microphones and preamplifiers deliver maximum accuracy and reliability Provides measurements that you can trust in the most demanding applications Class 1 and Class 2 microphones Flexibility to select accuracy needed for the application Compliant with Transducer Electronic Data Sheet (TEDS) standard IEEE 1451.4 providing auto identification and calibration data SPLmonitors and SPLmicrophones are easy to install with no calibration needed     Model 121 Specifications Description: Class 1, -inch free-field pre-polarized microphone with TEDS CCP preamplifier Power: CCP (constant current power), 20 to 30 Vdc, 4 to 20 mA TEDS Compatibility: IEEE 1451.4 v1.0, Template 27 Dimensions: -inch (12.7 mm) diameter, 3.94-inch (100 mm) length Optimized Frequency Response: 20 Hz to 20 kHz Nominal Sensitivity: 50 mV/Pa Maximum SPL (3% THD): 130 dB Equivalent Noise Level: 18 dBA Output Impedance: 110 ohms Maximum Output Voltage: 4.5 Vrms Connector: BNC Model 122 Specifications Description: -inch free-field pre-polarized microphone with TEDS CCP preamplifier Power: CCP (constant current power), 20 to 30 Vdc, 4 to 20 mA TEDS Compatibility: IEEE 1451.4 v1.0, Template 27 Dimensions:  -inch (12.7 mm) diameter, 3.94-inch (100 mm) length Optimized Frequency Response: 20 Hz to 12.5 kHz Nominal Sensitivity: 40 mV/Pa Maximum SPL (3% THD): 132 dB Equivalent Noise Level: 25 dBA Output Impedance: 110 ohms Maximum Output Voltage: 4.5 Vrms Connector: BNC Additional Information:         Data Sheet Summary Sheet User Guide - Pending Quick Start Guide SNMP Agent Guide Copyright 2018 Studio Technologies, Inc. All rights reserved.