The 4XD300 is controlled and monitored by the Variodyn D1 module’s DOM4-8 or DOM4-24 (Digital Output Module). It comes with a cooling unit socket located on its rear side for the mains connection and
The SpectrAlert Advance WTP is a red weatherproof mounting plate for flush mounting outdoor K series speakers and speaker strobes. Especially for use with SpectrAlert Advance replacement outdoor model