Mallory Sonalert Extra Loud MSR type are piezoelectric audible signal devices with a built-in oscillator circuit. All devices are suitable for wave soldering when ordered with the sound emission hole covered with a wash label. The recommended maximum temperature and exposure time for wave soldering is +270 C for 3 seconds.
**Cont. Tone; 3-20Vdc; 80dB; 3.4kHz; 23x10.5mm; PC Pins**
Features:
* Optional wash label may be ordered by adding "S" to model number