CALL: A.WIHARTA 081294124885 085778084789 087784022201   Info Produk The Extech 407780 sound level datalogger features Leq and SEL measurements, a built-in data logger, and PC interface. The Extech 407780 sound level datalogger has high accuracy, ± 1.5dB, that meets Type 2 standards ( ANSI S1.4-1983, IEC 60651, EN 60651) . Other features of the Extech 407780 sound level datalogger include a programmable integrating time, real time calendar / clock, and linearity over a wide range ( 100dB) . The Extech 407780 sound level datalogger comes complete with RS-232 cable, 9 to 25 pin gender changer, Windows ® 95/ 98/ NT/ 2000/ ME/ XP compatible software, microphone wind cover, 4 AA batteries, and convenient carrying case. 4 Digit multifunction LCD with analog bargraph Precise linearity over wide range ( 100dB) Display modes: SPL, SEL, MAX-L/ MIN-L, and Leq Programmable integrating time A and C Frequency weighting Impulse/ Fast/ Slow response settings Datalogging function records up to 32, 000 records Real time calendar/ clock Built-in RS-232 interface with included Windows® datalogging software Tripod mount Meets IEC 651/ 804 Type 2 and ANSI S1.4 Type 2 specifications Applications: Perform Leq and SEL measurements OSHA compliance Testing Noise Ordinance Machine Noise Evaluation Data Storage for pertinent records