Model GS 4.1 - Gas Alarm Unit
From Gas Analysis
Gas alarm unit with integrated semiconductor sensor, alarm buzzer and relay output for connection of additional external alarm equipment (e.g. horn). LEDs for operation (green), alarm (red), error (yellow), the Test button and the Reset button are located at the front side of the housing. The alarm is triggered when approx. 20 % of the LEL (lower explosive limit) is reached. The audible alarm can be muted with the Reset button. The visual alarm remains active until the alarm condition no longer exists (reset). The unit features an additional input for connection of an external gas sensor GS 4.1 as a second measuring point, e.g. for monitoring different rooms.
Additional gas sensor to be used with the gas alarm unit GS 2.1. Enables monitoring at two points in different rooms.Remote probe for gas alarm unit GS 2.1. LEDs for operation (green), alarm (red), error (yellow) are located at the front side of the housing. Audible alarm is triggered by the gas alarm GS 2.1.