DDPDB01 checker Sound Level Meter
Standard Features:
- Tests audible appliances for the public operating mode of an emergency voice/alarm system
- Easy to use
- Designed to meet the requirements of Life Safety Engineers
- Conforms to ANSI S1.4 Type 2 as required by NFPA 72, Chapter 10
- Measuring levels range from 32 dB to 130 dB, at frequencies between 31.5 Hz to 8 Hz
- Two equivalent weighted sound pressures levels, A and C AC
- 9V alkaline battery included