Model	Description
VARiON Plus 700 IQ	Digital sensor for the iion selective measurement of ammonium and nitrate, without electrodes
VARiON Plus A comp SET NH4	VARiON Plus 700 IQ, reference electrode VARiON Ref, ammonium measuring electrode VARiON Plus NH4
	and compensation electrode VARiON Plus K (Potassium)
VARiON Plus N comp SET NO3	VARiON Plus 700 IQ, VARiON Ref, VARiON Plus NO3 and VARiON Plus CI (Chloride)
VARiON Plus AN/A comp SET NH4 & NO3	VARiON Plus 700 IQ, VARiON Ref, VARiON Plus NH4 and VARiON Plus NO3,
	VARiON Plus K (Potassium)
VARiON Plus AN/N comp SET NH4 & NO3	VARiON Plus 700 IQ, VARiON Ref, VARiON Plus NH4 and VARiON Plus NO3,
	VARiON Plus CI (Chloride)
Ammonium measurement
Integratable measuring chains	Reference Measuring electrode Compensation	VARiON Plus Ref VARiON Plus NH4 VARiON Plus K
Measuring ranges / resolution	NH4-N NH4+	1 to 2000 mg/L / 1 mg/L ; 0.1 to 100 mg/L / 0.1 mg/L 1 to 2580 mg/L / 1 mg/L ; 0.1 to 129.0 mg/L / 0.1 mg/L
Compensation ranges	K+	1 to 1000 mg/L / 1mg/L
Nitrate measurement
Integratable measuring chains	Reference Measuring electrode Compensation	VARiON Plus Ref VARiON Plus NO3 VARiON Plus CI
Measuring ranges / resolution	NO3-N NO3-	1 to 1000 mg/L / 1 mg/L ; 0.1 to 100 mg/L / 0.1 mg/L 5 to 4500 mg/L / 1 mg/L ; 0.5 to 450.0 mg/L / 0.1 mg/L
Compensation ranges	CI-	1 to 1000 mg/L / 1 mg/L
Temperature measurements and compensation	Integrated NTC
	Area	0˚C to +40˚C
	Accuracy	±0.5 K
	Resolution	0.1 K, T95 <20s