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Visual and audible alarms for many areas of application
With the warning signs of the M21 series, GfG offers you bright alarm devices with integrated buzzer for commercial and industrial applications. Choose from various standard texts or individual lettering according to your specifications. The warning signs can be connected with three wires to relay modules, controllers and transmitters with relay output or integrated into a digital Modbus infrastructure. With the GfG app and a Bluetooth-enabled device, you can easily test the alarm functions and configure basic settings.
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Model variants of the M21 series
| Model | Dimensions (W x H x D) | Connection | Labeling |
| M2159-3L | 290 x 130 x 30 mm | 3-wire | one-sided |
| M2159-Bus | 290 x 130 x 30 mm | 4-wire | one-sided |
| M2161-3L | 410 x 130 x 30 mm | 3-wire | one-sided |
| M2161-Bus | 410 x 130 x 30 mm | 4-wire | one-sided |
| M2162-3L | 410 x 130 x 30 mm | 3-wire | two-sided |
| M2162-Bus | 410 x 130 x 30 mm | 4-wire | two-sided |
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» coming soon
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