Three-color LED indication Green LED = ON Amber LED = LOW BATTERY Red LED = ALARM Controls Power switch (Audible / Off / Silent) Interference Elimination Switch Tuning Automatic Audio Frequency 2 kHz Warble Operating Temperatures -35º F (-37º C) to 158º F (70º C) Width 3.25" (8.3 cm) Thickness 1.25" (3.2 cm) Length 19" (48.3 cm) Battery Requirements one 9V ( Not included).
Provides up to 80 hours of normal operation. Warranty 2 Year