TOMLIN Sound Level Meter – Model AS-156B Description The TOMLIN Sound Level Meter (Model AS-156B) offers advanced sound measurement capabilities with compliance to IEC 651 Type 2 and ANSI 1.4 Type 2 standards. Designed for environmental and industrial noise monitoring, this model provides comprehensive data with additional LN and Leq measurement features. Measurement Parameters Lp: Sound Level Leq: Equivalent Continuous A Sound Level Lmax: Maximum Sound Level LN: Percent of all readings exceeding a set alarm value Features Backlight Display: Enables clear readings even in dim lighting. Buzzer Sound Reminder: Alerts users during alarm-triggered measurements. Alarm Set and Alarm Output: Provides flexible alarm settings with output connectivity. Memory Function: Stores up to 30 groups of readings for future analysis. Built-In Calibration Signal: Guarantees measurement precision. Manual/Auto Power Off: Extends battery life with customizable power-off settings. Low Battery Indicator: Warns users when the battery is running low. Computer Connection: Facilitates efficient data transfer for analysis. Specifications Measurement Range: Lp: 30~130 dB (A-weighting) Leq/LN: 30~130 dB over durations of 10 s, 1 min, 5 min, 10 min, up to 24 h Resolution: 0.1 dB Accuracy: ±1 dB Frequency Range: 20~8,000 Hz Time Weighting: Fast (125 ms), Slow (1 second) Power Supply: 4 x 1.5V AAA UM-4 Battery Weight (Without Battery): 145 g (5.1 oz) Size: 171 x 70 x 31 mm (6.7 x 2.8 x 1.2 in) Standard Accessories Main Unit Windscreen Carrying Case Operation Manual Optional Accessories USB Cable & Software Bluetooth Adapter & Software Alternative Names Noise Level Meter with LN and Leq TOMLIN AS-156B Noise Measurement Device Advanced Environmental Sound Level Meter Downloads PDF Specification Sheet - Download
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