E2S Warning Signals has announced the addition of visual signals to the explosion proof and corrosion resistant GNEx family, broadening the GNEx family which includes alarm horn sounders, PA loudspeakers and manual call points for activation of fire alarms, gas detection and emergency shutdown systems. Suitable for all Zone 1, 2, 21 and 22 hazardous location signalling applications the GNEx beacons have extended temperature range with IECEx and ATEX Ex d approvals. For high ambient light or long distance signalling, the GNExB2 beacon is available in 10, 15 and 21 Joule variants producing up to 902cd — a very high output Xenon strobe. The smaller sized GNExB1 is available for where a 5 Joule (up to 117cd) unit meets requirements. Three flash patterns and second stage, set by users, are a standard feature with all GNEx beacons, depending on base model and power (DC or AC) supply.