Digital Loudlift Meter (Sonometer). Measurement nictile of 30 - 130 dB. Analog graph bar. Data retention and registration of them (63). Backlit screen. Automatic shutdown after 15 minutes of inactivity. Waiting mode and low battery warning. Maximum and minimum mode. Max.Display 1999. According to EN61326 standards: 1997 + A1: 1998 + A2: 2001 + A3: 2003, EN61672-1: 2002 Class 2 E IEC60641: 1979 Type 2. ANSI S1.4: 1983 Type 2.