Castle Datalogging Sound Level Meter, 67dB to 140dB, 20kHz max

IEC 61252:1993. Castle GA257B Sonus Personal Noise Exposure Meter. Castle GA257B is a high specification personal sound exposure meter fully compliant with IEC 61252-1. It is designed for industrial safety officers and safety managers, for compliance with ‘The Control of Noise at Work regulations 2005 ‘, and is especially suited for users who move around in the execution of their work. This meter gives simultaneous Lex (sound exposure) and peak measurement for assessments to the Control of Noise at Work Regulations 2005. It has a high specification measurement microphone and is cased in tough, crack-resistant ABS plastic. Simultaneous measurement of Lp, Leq, Zpeak, Lep,d, Dose, Dose / Hour, Pa2H 'A' frequency weighting 'Slow' Time weighting Sound pressure (Lp) to 0.1dB resolution Integrated equivalent level (Leq) measurement Personal sound exposure level (Lep,d) Noise dose%, Noise dose per hour%, Pascal squared hours Zpeak - maximum Z weighted peak level Elapsed time (running time hrs, min, sec) Over Load and Under Range indication Housed in tough, crack resistant ABS plastic Dimensions 60mm x 30mm (excluding pocket clip) x 135mm (210mm with microphone) Weight 200g (without battery)