Retro-reflective design Perfect for monitoring an entrance or use as an entrance indicator Will make "ding-dong" sound or siren sound when the beam is interrupted Speaker volume can be adjusted or turned off; When in siren mode, sounding time is adjustable from 3 to 30 sec Retro-Reflective Alert System comes with the following: NIR retro-reflective sensor, reflector, Speaker, 9VDC 200mA power adapter. 6ft cable
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Item# : SPM13450720217
Model # : E-931CS22RRCQ