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Muti-parameters Ion Selective Electrode Ammonia Nitrogen Nitrate Potassium Chloride Fluoride Water Tester Suverying Equipment

Ammonia Nitrogen (NH4+) Nitrate (NO3N) Potassium Ion (K+) Chloride (CL-) Fluoride (F-) Ion Water Analyzer Sensors could be with two of them, and also with pH & temp.
The PROBEST PISE-900 is a flexible, high-performance digital ion-selective electrode (ISE) sensor designed for intelligent water quality monitoring. It supports the selection of 1 or 2 ion-selective electrodes and comes standard with integrated pH and temperature sensors, enabling simultaneous 4-parameter monitoring in a single, compact probe.
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  • PISE-900

  • PROBEST

PISE-900 Multi-Parameter Ion Selective Electrode (ISE) Sensor | Digital Water Quality Monitor for Ammonia Nitrogen, Nitrate, K⁺, Cl⁻, F⁻


Introduction

The PROBEST PISE-900 is a flexible, high-performance digital ion-selective electrode (ISE) sensor designed for intelligent water quality monitoring. It supports the selection of 1 or 2 ion-selective electrodes and comes standard with integrated pH and temperature sensors, enabling simultaneous 4-parameter monitoring in a single, compact probe.
Optional ion-selective measurements include:


Ammonia Nitrogen (NH₄⁺-N), Nitrate Nitrogen (NO₃⁻-N), Potassium Ion (K⁺), Chloride (Cl⁻), Fluoride (F⁻).

Custom parameter combinations support cross-compensation algorithms to eliminate interference and deliver highly accurate, stable measurement data for demanding water environments.


Key Product Features

Digital Smart Sensor – Strong anti-interference performance, long-distance signal transmission, and stable data output
Direct Digital Output – Standard digital signal supports system integration & networking without an additional transmitter
Plug & Play Installation – Quick, tool-free on-site setup for simplified deployment
Full Electrical Protection – Reverse polarity power protection + RS485 A/B power surge protection for reliable operation
Data Management – Real-time clock, data logging, and historical data viewing functions
IoT Ready – Optional wireless data transmission module for remote monitoring and cloud platform integration


Applications

  • Sewage treatment plants: Monitoring nitrification tanks, aeration tanks, and denitrification processes

  • Industrial process water quality control

  • Surface water, river, and lake environmental monitoring

  • Drinking water, aquaculture, and industrial wastewater ion concentration analysis


Technical Specifications


Parameter Specification
Ammonia Nitrogen (NH₄-N) 0.1–3000 mg/L
Nitrate Nitrogen (NO₃-N) 0.5–3000 mg/L
Potassium Ion (K⁺) 0.5–5000 mg/L
Chloride (Cl⁻) 3–3500 mg/L
Fluoride (F⁻) 0.5–10000 mg/L
pH 5–10
Temperature 0–40℃
Resolution Ion: 0.01 mg/L; Temp: 0.1℃; pH: 0.01
Accuracy NH₄-N: ±5% or ±0.2 mg/L; Other ions: ±10% or ±0.2 mg/L; Temp: ±0.5℃; pH: ±0.1
Repeatability ±5% or 0.2 mg/L (whichever is greater)
Output 3×4–20mA analog; 3×programmable relay; MODBUS RS485
Operating Temperature 0–50℃ (non-freezing)
Dimensions Diameter 55mm × Length 342mm
Weight <1 kg
Protection IP68 / NEMA6P
Cable Standard 10m (extendable up to 100m)

Why Choose PROBEST PISE-900?

PROBEST is an ISO9001 certified manufacturer with multiple patents, specializing in the R&D and production of professional water analysis instruments – including portable water analyzers, multi-parameter water quality sensors, and data acquisition & transmission terminals.
Our products are widely used in drinking water, wastewater, surface water, aquaculture, and industrial process water monitoring.
With 30+ professional R&D engineers, PROBEST focuses on innovative sensor technology to make water analysis faster, simpler, greener, and more reliable.
Quality is our core advantage – delivering stable, accurate, and durable water quality monitoring solutions for global customers.


Probest water Analyzer Manufacturer

PINH3-900 Muti-parameters Ion Selective Electrode Ammonia Nitrogen (NH4+) Nitrate (NO3N)  Potassium Ion (K+) Chloride (CL-)  Fluoride (F-) Ion Water Tester Suverying Equipment



UNI20 front PINH3-900 

 

WHY CHOOSE US:

Probest is a professional ISO9001 certificated manufacturer with many patents specializing in researching, developing, producing of water analysis instruments, including portable water analyzer, multi-parameter water quality analyzer, data acquisition and transmission terminal. The product can be applied to the fields of water quality monitoring of drinking water, waste water, surface water, aquaculture water, industrial process water, etc.
Probest is a reliable company including 30+ researcher, focusing on the development of sensor technology to make water analysis faster, simpler, greener and better. 
Quality is our core advantages, providing stable and reliable water quality analysis.

 

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