Extech Digital Sound Level Meters

Features:

• Use for OSHA regulatory compliance testing, machine noise testing, noise ordinance law enforcement and community noise complience testing.
• A and C weighting, 2 models, provide 1.5 dB or 2.0dB accuracy.
• Tripod mount.
• 0.1 dB resolution.
• Max hold with reset button.
• Large 0.5″ 3-1/2 digit LCD display.
• 51-423-2 meets ANSI and IEC 651 type 2 standards.
• High and low measuring ranges:
  • 51-423-2: low: 35 to 90 dB, high: 75 to 130 dB
  • 51-424-0: low: 35 to 100 dB, High: 65 to 130 dB
• Built in calibration check (94 dB)
• Analog DC/AC conditioned outputs of 10mV/dB.
• Utilizes 0.49″ (12.3 mm) condenser microphone.
• Dimensions: 9.5″ x 2.7″ x 1″ (241 x 69 x 25 mm)
• Complete with hard vinyl case and 9V battery.