Voice Activated Relay is a relay device that monitors audio activity over a wide range of input voltages and operates two sets of C-Form relay contacts in response to detected activity. VAR1 Features: Monitors audio activity over a wide range of input voltages Two sets of C-Form (both N.O. and N. C.) relay contacts respond to audio activity Built-in balanced, low noise, high gain microphone pre-amp Transformer-isolated, 600-ohm small signal level output of detected audio available Works with self-amplified or central-amplified paging systems Separate microphone pre-amp gain control Adjustable release delay: 0.25s to 25s Trigger threshold adjustment Relay active indicator light Four levels of signals: microphone, 600-ohm line, 25V, and 70V speaker systems Line Input Impedance: 600 ohms Line Input Frequency Response: 100 Hz to 10 kHz Output Level: 400 mVrms MIC Pre-Amp Frequency Response: 200 Hz to 10 kHz Time Delay Range (approx.): 0.25 to 25 sec. Dimensions: 5-3/8" W x 3-7/8" H x 1-3/8" D
