The Hanna Instruments HI 7609829-10 ammonium ISE sensor with O-ring is a combination liquid membrane sensor that detects free ammonium-nitrogen in fresh-water samples. This ISE (ion selective electrode) sensor is designed for use with the HI 9829 or HI 98290 GPS multiparameter meter and a compatible digital probe in environmental monitoring and is useful for measuring surface-water contaminants, such as tracing the source of agricultural operations or studying nutrient levels in natural waters. The sensor is field replaceable and easy to attach, with color-coded screw-type connectors. It has a double-junction connector and a solid gel-filled reference electrode to increase resistance. This sensor is used in place of the pH sensor in the probe. The pH/mV reading is also displayed, which can be compared for troubleshooting. HI 7609829-10 sensor measurements are International Organization for Standardization (ISO) 7027 compliant.

Specifications

H is height, the vertical distance from lowest to highest point; W is width, the horizontal distance from left to right.

A multiparameter meter is a benchtop or handheld device that can take multiple readings on a single sample. It measures parameters such as the pH level (acidity or alkalinity of a substance), conductivity (the amount of salts or other compounds present in water), dissolved oxygen (DO, the amount of oxygen in a liquid), temperature, total dissolved solids (TDS, anything present in water other than the pure water molecule and suspended solids), salinity, resistivity, and oxidation reduction potential (ORP). Applications for multiparameter meters include water testing, pharmaceuticals, agriculture, winemaking, water-treatment plants, and aquaculture. Devices with a benchtop body are often used for indoor laboratory use or in a manufacturing setting; handheld, portable devices are typically used for fieldwork. Sensors are used with a meter to measure the parameters of a substance.

Hanna Instruments manufactures analytical instrumentation and supplies, including pH meters, electrodes, chemical reagents, and buffer solutions. The company, founded in 1978 and headquartered in Woonsocket, RI, meets International Organization for Standardization (ISO) standard 9001.