Zone 0
Explosive gas atmosphere present continuously or for long periods
Zone 1
Explosive gas atmosphere likely to occur in normal operation
Zone 2
Explosive gas atmosphere unlikely to occur and, if it does, only for a short period
Zone 20
Explosive dust atmosphere present continuously or for long periods
Zone 21
Explosive dust atmosphere likely to occur in normal operation
Zone 22
Explosive dust atmosphere unlikely to occur and, if it does, only for a short period
# Certifications
ATEX: I M1 Ex ia I Ma · II 1G Ex ia IIC T4 Ga · II 1D Ex ia IIIC T130°C Da
IECEx: Ex ia I Ma · Ex ia IIC T4 Ga · Ex ia IIIC T130°C Da
Ambient temperature: -20 °C to +50 °C
# Communication
Radio: integrated two-way, analogue and digital, programmable
Bluetooth: yes, for phone or external radio
Microphone: noise-cancelling
Ambient listening: level-dependent
# Weight (with ACK082)
Headband: 521 g
Helmet attachment: 512 g
Neckband: 475 g
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