This Hazardous Area Air Pressure Switch is manufactured by Beck in Germany.
The Hazardous Area Air Pressure Switch is approved for Zone 1 & 2 use & includes European ATEX approval.
When you couple this Hazardous Area Air Pressure Switch with an ATEX approved relay switching module you have a completely safe circuit to use in explosive areas.
The switch falls under the II 2G category & a protection type of II B T4 as standard.
Its available in various measuring ranges & accessories.
More info on our website, http://www.alvi.com.au/product/beck_-_atex_differential_pressure_switch_930ex_climair/