DSC SDM-100 Siren Driver Module Control Board Security Alarm Fire System Panel Description DSC SDM-100 Two Tone Siren Driver The DSC SDM-100 is a two tone siren driver which means it can be wired to produce a steady alarm tone or a warble tone. This siren driver can handle up to 4 wired sirens and has a 4 ohm load capability. It can be used on systems with power ranges of 6 to 15 VDC and is considered a low current draw peripheral which means it draws minimal amperage. This siren driver uses the pulse of an alarm system's bell outputs to differentiate between the steady and warble tone. Specifications: Voltage - 6 to 15 VDC Current: With 8 ohm load - .45 to 1.0 Amp With 4 ohm load - .75 to 2.0 Amp dB Output: With 8 ohm load - 110 to 116 dB With 4 ohm load - 112 to 119 dB Mounting - Double-sided tape (included) Dimensions - 2.25" x 2.75" 20% RESTOCKING FEES AND SHIPPING WILL BE CHARGED. IF ITEM IS FUNTIONAL OR INCOMPLETE. An Important Message Regarding USPS Tracking Numbers Due to high volume of shipments sent through USPS, Tracking numbers get recycled on occasion. This means, when you receive the notificaiton that your package has been shipped via USPS, and you try to track the status of the package, it may show your package was Delivered even though the label was just generated. Please don't panic, the solution to this issue is to wait until the Post Office scans the label, then the tracking information will update accordingly. Please let us know if you have any questions. Your feedback is extremely important to us! If you are satisfied with our service please take the time to give us positive feedback. We tremendously appreciate it! We strive for your complete satisfaction. Likewise, if you have any issues, please contact us first, and we promise we will do our best to satisfy your needs and solve the problem. If we resolve your problem, we kindly ask you to still leave us positive feedback. Your kindness will be extremely appreciated!