Factory Options for Sentry Mk2
Slave display: Two Sentrys may be connected together, one acting purely as a slave display of the other. Specify slave display unit when ordering.
Hearing Protection Indicator: The Sentry may also be used in industrial situations to control warning signs, usually indicating the need for hearing protection. When used for this purpose the contactor output is reversed and only switches on after the time period. Units for this application need to be specified when ordering.
Auto Power On: This option allows the Sentry to provide power to the contactor when first powered up. As normally supplied the Sentry requires the reset button to be pressed when the power is first applied.
Auto Power Reset: This option allows the Sentry to turn back on after a defined period. Contact Formula Sound for more information.