This sound level meter is a high accuracy instrument that meets ansi and iec 651 type 2 standards. The sound level meter has high (65 to 130db) and low (35 to 100db) measuring ranges enabling its use in a variety of environments. Functions of the sound level meter include data hold and max hold. The backlit display aids viewing in dimly lit areas. The sound level meter ships complete with microphone wind screen and 9v battery. An optional nist certificate is also available. Features: - ±1.5db accuracy - a&c weighting - auto power off and max hold functions - utilizes 0.5 (12.7mm) microphone - 35 to 130db measuring range - fast/slow response time - high accuracy meets ansi and iec 651 type 2 standards - high ...(choose a part on the right to read more)