Technical DataGas temperature -25C to +70CAmbient temperature -25C to +70CStorage temperature -40C to +70CWorking pressure max. 20 barProtection class IP 67 (for outdoor installation)Housing Aluminum or ductile ironMID Approval DE-12-MI002-PTB001 (PTB)PED approval CE-0085CN0022 (DVGW Cert GmbH)ATEX ..