{"product_id":"contacta-sts-m15-300-ip-ip54-outdoor-stem-microphone","title":"Contacta STS-M15-300-IP IP54 Outdoor Stem Microphone","description":"\u003ccenter\u003e\u003cspan style=\"font-size: x-large;\"\u003e\u003cstrong\u003eContacta STS-M15-300-IP IP54 Outdoor Stem Microphone\u003c\/strong\u003e\u003c\/span\u003e\u003c\/center\u003e\n\u003cp\u003eThe Contacta STS-M15-300-IP is the IP54 weather-rated stem microphone built for the customer side of an outdoor window intercom installation where the hardware is exposed to rain, wind-driven precipitation, dust, and dirt. The microphone element sits on top of a straight 11.8-inch stem in black powder-coated ABS plastic and stainless steel, mounted to the exterior wall or window frame so the pickup head sits at mouth height for the customer on the outdoor side. The 6.56-foot cable routes back through the wall to the amplifier and staff unit on the interior side. Hardware and adhesive pads for installation are included.\u003c\/p\u003e\n\u003cp\u003eIP54 rating means the enclosure is protected against dust ingress and water splashing from any direction. In practical terms, that covers drive-through pickup windows, curbside pharmacy or health-clinic counters, ticket booths and ferry terminals, outdoor gates and security doors, transportation and distribution depot check-in windows, and the drive-through and outdoor mass-testing stations that became common in healthcare operations. A standard indoor stem microphone will degrade quickly in those environments as moisture reaches the microphone element and the ABS joints; the STS-M15-300-IP is specifically rated for permanent exterior exposure.\u003c\/p\u003e\n\u003cp\u003eThe microphone uses an omnidirectional pickup pattern rather than the cardioid pattern on Contacta's indoor stem microphones. For outdoor service windows and drive-through counters, the customer is not always positioned directly in front of the microphone (different vehicle heights at a drive-through, customers standing at an angle to a window ledge, children or wheelchair users at a different height than the designed mouth position), so an omnidirectional pattern picks up the customer's voice from any angle at the counter. The trade-off is slightly more ambient noise pickup than a cardioid pattern, which is a reasonable trade-off in open outdoor acoustics where there is less reverb and less constant background noise than a crowded indoor lobby.\u003c\/p\u003e\n\u003cp\u003eTechnical specs: omnidirectional directional response, -42 ±3 dB sensitivity (0 dB = 1 V\/Pa), 2.2 kΩ impedance, 100 Hz to 20,000 Hz frequency response. The 2.2 kΩ impedance is matched to the electret microphone input stage of Contacta's \u003ca href=\"https:\/\/www.safeandvaultstore.com\/products\/contacta-sts-a31h-window-intercom-amplifier\" rel=\"noopener\" target=\"_blank\"\u003eSTS-A31H window intercom amplifier\u003c\/a\u003e, which supplies 5 V through a 2.2 kΩ load resistor to drive the microphone, and the microphone is powered by the \u003ca href=\"https:\/\/www.safeandvaultstore.com\/products\/contacta-ps-55-power-supply\" rel=\"noopener\" target=\"_blank\"\u003ePS-55 power supply\u003c\/a\u003e, the same amplifier and power supply used across Contacta's window intercom family.\u003c\/p\u003e\n\u003cp\u003eThe STS-M15-300-IP is the customer-side microphone component in the \u003ca href=\"https:\/\/www.safeandvaultstore.com\/products\/contacta-sts-k080-ip-ip54-outdoor-window-intercom-system-with-overhead-speaker\" rel=\"noopener\" target=\"_blank\"\u003eContacta STS-K080-IP IP54 Outdoor Window Intercom System\u003c\/a\u003e. If you are running that kit and the outdoor microphone has been damaged by weather, impact, or vandalism and needs replacement, this is the correct replacement part.\u003c\/p\u003e\n\u003cp\u003eIf your installation is indoor rather than outdoor, Contacta's indoor-rated stem microphones use a cardioid pickup pattern (better ambient-noise rejection in reverberant lobby environments) at a lower price. The \u003ca href=\"https:\/\/www.safeandvaultstore.com\/products\/contacta-sts-m14-300-anti-vandal-customer-side-microphone\" rel=\"noopener\" target=\"_blank\"\u003eContacta STS-M14-300\u003c\/a\u003e is the indoor anti-vandal cardioid microphone with the same 11.8-inch stem length for installations where weather exposure is not a concern.\u003c\/p\u003e\n\u003cp\u003eIf you're not sure whether the STS-M15-300-IP is the right outdoor microphone for your installation, please call us at 800-207-2259.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eIP54 weather-rated stem microphone for outdoor window intercom installations exposed to rain, wind-driven precipitation, and dust\u003c\/li\u003e\n\u003cli\u003eProtected against dust ingress and water splashing from any direction\u003c\/li\u003e\n\u003cli\u003eOmnidirectional pickup pattern captures customer speech from any angle at the counter or drive-through window\u003c\/li\u003e\n\u003cli\u003eWide 100 Hz to 20 kHz frequency response for clear speech transmission in open outdoor acoustics\u003c\/li\u003e\n\u003cli\u003eStraight 11.8-inch stem keeps the microphone head at mouth height for the customer on the exterior side\u003c\/li\u003e\n\u003cli\u003eBlack powder-coated ABS plastic and stainless steel construction resists corrosion and weather\u003c\/li\u003e\n\u003cli\u003e6.56-foot cable routes back to the indoor amplifier through the wall or frame\u003c\/li\u003e\n\u003cli\u003eInstallation hardware and adhesive pads included\u003c\/li\u003e\n\u003cli\u003ePairs with the STS-A31H window intercom amplifier (2.2 kΩ impedance matched to amplifier mic input)\u003c\/li\u003e\n\u003cli\u003eCompatible with the STS-K080-IP IP54 Outdoor Window Intercom System as the replacement customer-side microphone\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eApplications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eOutdoor access points (gates, security doors)\u003c\/li\u003e\n\u003cli\u003eDrive-through services (food, beverage, pharmacy, banking)\u003c\/li\u003e\n\u003cli\u003eCurbside pickup and curbside pharmacy counters\u003c\/li\u003e\n\u003cli\u003eTicket booths and ferry terminals\u003c\/li\u003e\n\u003cli\u003eTransportation and distribution depot check-in windows\u003c\/li\u003e\n\u003cli\u003eMedical, healthcare, and mass-testing facilities\u003c\/li\u003e\n\u003cli\u003ePort and marine terminals\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003ePhysical Data:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMicrophone Head: 1.41\" diameter x 0.47\" depth\u003c\/li\u003e\n\u003cli\u003eStem Length: 11.8\"\u003c\/li\u003e\n\u003cli\u003eTotal Height: 13.21\"\u003c\/li\u003e\n\u003cli\u003eCable Length: 6.56 ft\u003c\/li\u003e\n\u003cli\u003eConstruction: ABS Plastic and Stainless Steel\u003c\/li\u003e\n\u003cli\u003eFinish: Black Powder Coat\u003c\/li\u003e\n\u003cli\u003eIngress Protection: IP54 (dust and water splash from any direction)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eTechnical Data:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDirectional Response: Omnidirectional\u003c\/li\u003e\n\u003cli\u003eSensitivity: -42 ±3 dB (0 dB = 1 V\/Pa)\u003c\/li\u003e\n\u003cli\u003eImpedance: 2.2 kΩ\u003c\/li\u003e\n\u003cli\u003eFrequency Response: 100 Hz - 20,000 Hz\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Contacta Inc","offers":[{"title":"Default Title","offer_id":41752183799866,"sku":"STS-M15-300-IP","price":267.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1147\/6518\/files\/contacta-sts-m15-300-ip-ip54-rated-stem-microphone-sts-m15-300-ip.webp?v=1792013089","url":"https:\/\/www.safeandvaultstore.com\/products\/contacta-sts-m15-300-ip-ip54-outdoor-stem-microphone","provider":"Safe and Vault Store.com","version":"1.0","type":"link"}