Noise Reduction Device

Expanded metal mesh can be made from a range of materials, such as carbon steel, aluminum metal, stainless steel metal, nickel metal and so on. Expanded metal mesh are widely used as steel reinforcement materials in petroleum, chemical industry and building. Surface treatment hot-dipped, electrol galvanized, pvc-coated. Type A Sizes: Long way of mesh: 12.5-200mm Short way of mesh: 5-80mm Thickness: 0.5-8mm Stand Width: 0.5mm-10mm Expanded metal mesh at length from 1M-30M and width from 600-2400mm. Packing: Pallet suilt for sea transport. Type B Sizes: Long way of mesh: mini 3mm Short way of mesh: mini 2mm Thickness: 0.03-1.5mm Stand Width: 0.03mm-3mm Expanded metal mesh at length from 1M-30M and width from max 1250mmPacking: inner PE bag, outer carton

32 Battery Capacity Tester (RS-232) SPECIFICATIONS : Battery Types Tested Compact storage batteries, Alkali and lead-acid batteries.. Battery Capacity 0 to 500AH Resistance Ranges : 40mO, 400mO, 4O, 40O Resolution : 10µO, 100µO, 1mO, 10mO Accuracy : ±(1%reading + 8digits) on all ranges. Measurement Current : 50mA, 5mA, 500µA,50µA Frequency : 1KHz Accuracy : ±10% Voltage Measurement : 4V, 40V Resolution : 1mV, 10mV Accuracy : ±(0.1%rdg ±6digits)

FEATURE Meets IEC 651;ANSI S1.4, type2 standard. Quasi-Analog bar indicator:1dB display steps, 50dB display range, updated every 50ms. Measurement level range features 6 ranges. Background noise absorber mode filters ambient sounds. Fast( 125 msec.) or Slow( 1 sec.) respone 3 times. Record Max / Min. & Maximum Hold function. A / C Weighting selectionable. Microphone : 6mm(Dia.)electric condenser type. Backlight for use in dark areas (Model 8922). Low battery indicator. Optional RS232 software (Disk & PC cable). Serial formt: 2400Baud rate, 1 Stop bit, 8 Data bits. N: xxx, xdB Monitor the sound levels from traffic noise, alarm systems and workplace machinery, Multi-Freguency calibration to ensure quality stable. SPECIFICATION Auto range : 30-130dB. Big LCD : 42x64mm. Measurement level range : 6 ranges in 10-dB steps:30-80dB, 40-90dB, 50-100dB, 60-110dB, 70-120dB, 80-130dB. Accuracy : ±1.5dB ( under reference condition ) Digital