The Aquamonitrix® system is based on rapid ion chromatography, employing a simple anion exchange method.

Selective, direct detection of nitrite and nitrate is attained through the use of a novel, patented optical detection technology.

The system is cost-effective and delivers highly accurate and precise analytical performance even compared to leading laboratory-based instrumentation*.

*Based on validation trials by the US EPA

Laboratory – Quality Performance

lab quality

Laboratory versus Aquamonitrix® performance in trials carried out as part of the US Environmental Protection Agency (EPA) Advanced Septic System Nitrogen Sensor Challenge. The one-month trials were carried out at the Massachusetts Alternative Septic System Test Center (MASSTC), a US National Sanitation Foundation (NSF) certified test facility in Barnstable, Massachusetts. 


 + Accuracy, precision: +/- 10%

+ Deployment time: 3 months @ 6 samples/day

+ Minimum sampling interval: 15 mins

+ Eluent fluid: Potassium hydroxide (KOH)

+ Range and Limit-of-Detection:

Nitrite = 0.5 mg/L to 100 mg/L, 0.25 mg/L

Nitrate: 2.5–500 mg/L, 1.5 mg/L

+ Manual calibration: on-site prior to deployment.

Physical dimensions and features

External size: 23cm X 36cm X 57cm  (enclosure size, without supporting cradle)

Weight: 12 kg

Portable (non-operational while being transported)

Vertical/upright orientation while operating

Integrated provision for mounting/securing to a fixed surface (e.g. floor, wall, etc.)

Integrated carry handle and lockable hinged door

Rugged construction: Impact, UV and corrosion-resistant

Power source

24V dc input power, 50W max. rated power

Integrated battery, for backup only

(Coming Soon: Fully battery powered option available with Aquamonitrix™ V2)

User interfaces/Data output

 Wired output transmission: MODBUS over Serial (RS232 / RS485)

Option for wireless transmission

Data communications via RS232, for commissioning/troubleshooting purposes


Operating temperature range:  5 to 55°C

Sample temperature range:      2 to 50°C

Operating humidity range:        10 to 90% relative humidity, non-condensing

Storage temperature range:     -20 to 60°C

Storage humidity range:            10 to 90% relative humidity, non-condensing

Altitude:                                   Up to 2 km above sea level

IP rating:                                  IP66 (IEC 60529

Alarms and indicators

Tri-colour Status LED

Regulations, Standards, Certifications

CE mark, UL approval, REACH, Proposition 65 (California)

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