GRI releases 4110 overhead door switch

The GRI 4110 is a "Vane" switch for use on storage units with overhead doors and latch-type locks.

When mounted on a roll-up door channel, the 4110 will not allow the alarm system to arm unless the bolt or latch is in a locked position.

Removal of or tampering with the bolt or latch removes the shunting effect and an alarm will be activated when the circuit is opened.

For more information, contact GRI at 800-445-5218 or visit

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