Conforms to ANSI S1.4-1983, ANSI S1.25-1978, and IEC 651-1979 Specifications
Choice of Exchange Rates (3, 4, or 5 dB) and Criterion Levels (70, 80, 84, 85, or 90 dB)
Selectable Threshold Level from 50-99 dB in 1 dB Increments
Dual Range (50-100 dB and 80-130 dB)
Real Time Clock With Rechargeable Battery
Security Lockout Feature With Internal Data Storage
Self-Test Modes Test Operational Readiness