Extech 407736 Sound Level Meter 1.5dB Type 2 features: High accuracy Type 2 Meter; Provides 1.5dB accuracy; Meets ANSI and IEC 651 Type 2 standards; High and Low measuring ranges Max Hold with reset button; Built-in calibration check (94dB); Analog AC/DC outputs for connection to an analyzer or recorder; Tripod mount ideal for field use.