Check the listing for details. Deltabell E Module Only, Grade 2. Condition: New. Listed at 48.19 USD. 3 way tamper protectionPolycarbonate housing offers weather proofing and elegant designSealed electronicsLow power strobe LED activated on alarmLow power piezo with high performance 104db audible alarmGrade 2ratedTo be used with the Deltabell Dummy Base & Covers (sold separately)Visual Deterrent and Alarm IndicationLow power strobe LED technology provides a visual indication when the alarm is activated.Easy to InstallThe auto-levelling mechanism uses rotating guide holes and a spirit level to facilitate the simple and easy positioning of the sounder.Engineer hold-off will disable the sounder when in the Engineers Menu, allowing installers to work on the sounder without the fear of unwanted activations. When the control panel is in Engineers Mode, the Deltabell E external sounder will go in.