WPVT-SN Series are surface-mounting, weather-resistant, electroacoustic signaling devices. They are ruggedly constructed to withstand moisture, corrosion, dust, vibration, and temperature extremes from -30° to 150° F. Stations include high-intelligibility, environment-resistant compression driver, semirecessed enclosure, a variety of mounting accessories, and a weatherresistant call button for protected call-in signalling capability. Stations are available in 15 or 2 watt versions with optional 25 volt transformer. The 8 ohm compression driver is the patented VT Series model with water-sealed, die-cast zinc construction and integral, exponential sound projector to provide clear audibility. Call switch is a momentary-action, heavy-duty push button with a contact rating of 3 amps. The call button has a SPDT-type switch which is protected by a weather-resistant rubber boot to provide durable and safe operation in outdoor and high humidity environments. WPVT-SN Series are compact assemblies size 4 1/4" SQ x 3 1/8" D (108 x 79mm) which are designed for semi-recessed installation, and will accept a variety of mounting accessories to meet varying installation requirements. Enclosure and face plate are die-cast construction finished in neutral grey epoxy. Features Environment-Resistant Paging and Intercom Stations for Outdoor Installation Include Weatherproof Call/Signal Origination Switch Loudspeaker Provides Clear and Consistent Voice and Signal Transmission Power Handling Selection of 15 and 2 Watt Models Includes Optional 25 Volt Transformer to Meet Various Functional and Transmission Requirements Proven Performance Reliability of the Patented VT Series Environment-Resistant Compression Driver Semi-Recessed