http://www.reliabilitydirect.com/extech-direct_pdf/407736_UM.pdfFeatures

• Two models provide 1.5 dB or 2 dB accuracy
• A and C weighting
• High and Low measuring ranges:
  • Model 407735 - Low (35 to 100 dB), High (65 to 130dB)
  • Model 407736 - Low (35 to 90 dB), High (75 to 130 dB)
• 0.1dB resolution
• Fast/slow response
• Max Hold with reset button
• Model 407736 meest ANSI and IEC 651 Type II standards
• Large 0.5" 3-1/2 digit LCD display
• Built-in calibration check (94dB)
• Trippod mount and analog DC/AC conditioned outputs of 10mV/dB
• Utilitzes 0.49" (12.3mm) condenser microphone
• Dimensions: 9.5x2.7x1" (241x69x25mm). Weight 7.6oz (215g)
• Complete with hard vinyl case and 9V battery

Download User's Manual