VS-08 ESL GRI vs08 window vent surface magnetic venting switch VS08WHT 697625022021 VS-08-W 8 inch , 200V, .5 amps, Contact: Normally Open, Loop Type: Closed. Length: 7.72" w/o flange, 8.52" w/flange(mounting), 36" leads, Color: White country of origin: united states maximum switching current:0.500a maximum switching voltage:200v maximum contact rating: 10w electrical configuration: n/o 36" zip cord lead standard switch length 8"closed loophis unique invention has been designed in response to requests from installers for a switch that would allow window venting of four to six inches before breaking contact and creating an alarm condition. The GRI Vent Switch will allow the homeowner to arm his system and at the same time permit venting of any window on which the Vent Switch has been installed. A slider or double hung window can be opened or closed while the GRI Vent Switch maintains an extended zone of actuation of approximately six inches at 1/2 air gap. Prior to actual installation it is highly recommended that the installer become familiar with the operation of this switch during a bench test session. A continuity checker would work well in determining the overall area of activation. It is suggested that the homeowner be instructed in its actual operation to prevent an owner-induced alarm. this unique invention has been designed in response to requests from installers for a switch that would allow window venting of four to six inches before breaking contact and creating an alarm condition. This vent switch will allow the homeowner to arm his system and at the same time permit venting of any window on which the vent switch has been installed. a slider or double hung window can be opened or closed while the gri vent switch maintains an extended zone of actuation of approximately six inches at 1/2 air gap. prior to actual installation it is highly recommended that the installer become familiar with the operation of this switch during a bench test session. a continuity checker would work well in determining the overall area of activation. it is suggested that the homeowner be instructed in its actual operation to prevent an owner-induced alarm. main features aids in preventing false alarms eliminates disarming system when opening or closing windows