CV CO/CO2/O2/NOx IR47 -999/7000 230V inbouw 96x96 ATU0 CO2 CO O2 Rookgasanalyser Bestel IR63 Proces 1999/9999 multi-ingang ANW1 Rookgasanalysator Smartphone Druk Temp Bestel PC41 Proces -999/9999 PID 0/4-20mA ATU3 App CO2 CO O2 Rookgasanalyser Bestel PC26 Proces 999/9999 PID multi-ingang