The Rolls SLM305 is a digital sound level meter with a backlit display. The SLM305 operates off a single 9 volt battery. It features a clean elegant design with high quality construction throughout. It features a MAX button to turn on and off a maximum level reading feature making it easy to get a good reliable maximum dB reading rather than just guessing it yourself off of an erratic display. The SLM305 also has an automatic OFF function that will turn the unit off after 10 minutes to save your battery.
- Auto off to preserve batteries
- Accurate to +/- 1dB
- MAX hold dB feature
- Automatic backlight display
- Low battery indication
- Operates off of a single 9V battery
- Measuring range: 30dBA to 130dBA
- Digit resolution: 4 digit & .1dB metering
- Frequency responce: 31.5Hz to 8.5KHz
- Sampling rate: 2 times/sec.