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Water Quality

Water quality meters provide fast, reliable measurement of key parameters including pH, conductivity, TDS, salinity, dissolved oxygen, turbidity, ORP and temperature.

These instruments help users evaluate water conditions, identify changes and maintain consistent quality across environmental, laboratory, industrial, agricultural, food and beverage, and water treatment applications.

Sper Scientific Direct offers water quality instruments ranging from compact pocket testers and portable multi-parameter meters and dataloggers to complete online systems and professional water quality analyzers. Choose from single-parameter meters, expandable systems, complete testing kits, probes, sensors and calibration solutions for field measurements, routine quality control and detailed water analysis.

A white Sper Scientific handheld water quality meter with a green LCD showing 6.76 pH and 25.0 °C, and various gray control buttons.

150 products

870015-ORP ORP sensor with protective cap and connector

Sper Scientific

870015-ORP

ORP Sensor - Fits Multi-Parameter Sonde

Regular price $620.55 USD
Sale price Regular price
870015-DO dissolved oxygen sensor with black cap installed

Sper Scientific

870015-DO

Dissolved Oxygen Sensor - Fits Multi-Parameter Sonde

Regular price $1,730.40 USD
Sale price Regular price
870015-PH pH sensor with protective guard installed

Sper Scientific

870015-PH

pH Sensor - Fits Multi-Parameter Sonde

Regular price $677.25 USD
Sale price Regular price
870015-CS conductivity and salinity sensor showing sensing tip and connector

Sper Scientific

870015-CS

Conductivity/Salinity Sensor - Fits Multi-Parameter Sonde

Regular price $677.25 USD
Sale price Regular price
Advanced Blue-Green Algae Sensor

Sper Scientific

870015-BGA

Blue-Green Algae Sensor - Fits Multi-Parameter Sonde

Regular price $1,961.40 USD
Sale price Regular price
870015-CLP chlorophyll sensor connector and housing detail

Sper Scientific

870015-CLP

Chlorophyll Sensor - Fits Multi-Parameter Sonde

Regular price $1,961.40 USD
Sale price Regular price
870015-AN ammonia nitrogen sensor with protective guard removed

Sper Scientific

870015-AN

Ammonia Nitrogen Sensor - Fits Multi-Parameter Sonde

Regular price $3,000.90 USD
Sale price Regular price
870015-NI nitrate ion sensor with protective guard removed

Sper Scientific

870015-NI

Nitrate Ion Sensor - Fits Multi-Parameter Sonde

Regular price $3,000.90 USD
Sale price Regular price
870015-CHL chloride sensor with protective guard removed

Sper Scientific

870015-CHL

Chloride Sensor - Fits Multi-Parameter Sonde

Regular price $4,386.90 USD
Sale price Regular price
870015-CHL chloride sensor with protective guard removed

Sper Scientific

870015-FLR

Fluoride Sensor - Fits Multi-Parameter Sonde

Regular price $4,386.90 USD
Sale price Regular price
Potassium ion sensor with yellow probe, metal housing and connector

Sper Scientific

870015-POT

Potassium Ion Sensor - Fits Multi-Parameter Sonde

Regular price $4,386.90 USD
Sale price Regular price
6 In 1 Multi-Parameter Water Quality Pen

Sper Scientific

850054

6 In 1 Multi-Parameter Water Quality Pen

Regular price $189.00 USD
Sale price Regular price
LUCTP-10-Reagent - Total Chlorine 10 Packs

Sper Scientific

LUCTP-10

Reagent - Total Chlorine 10-Pack

Regular price $16.50 USD
Sale price Regular price
LUCFP-10-Reagent - Free Chlorine

Sper Scientific

LUCFP-10

Reagent - Free Chlorine 10-Pack

Regular price $16.50 USD
Sale price Regular price
0 PPM Total Chlorine Standard | CT-01

Sper Scientific

860043-CT

1 PPM Total Chlorine Standard | CT-01

Regular price $16.50 USD
Sale price Regular price
1 PPM Free Chlorine Standard | CF-01

Sper Scientific

860043-CF

1 PPM Free Chlorine Standard | CF-01

Regular price $16.50 USD
Sale price Regular price
0PPM Chlorine Standard | CL-01

Sper Scientific

860043-CL

0PPM Chlorine Standard | CL-01

Regular price $16.50 USD
Sale price Regular price
Online Universal Water Quality Transmitter

Sper Scientific

870016

Online Universal Water Quality Transmitter

Regular price $997.50 USD
Sale price Regular price
Online Dual-Channel pH/Conductivity Analyzer

Sper Scientific

870002D

Online Dual-Channel pH/Conductivity Analyzer

Regular price $947.50 USD
Sale price Regular price
Sper Scientific 870001S analyzer with blue company logo

Sper Scientific

870001S

Online Multi-Parameter Water Quality Analyzer

Regular price $4,300.00 USD
Sale price Regular price
Sper Scientific 870017 DPD Colorimetry Chlorine Analyzer, closed cabinet view

Sper Scientific

870017

Online DPD Colorimetry Chlorine Analyzer

Regular price $4,300.00 USD
Sale price Regular price
870023 Open Channel Flow Meter

Sper Scientific

870023

Open Channel Flow Meter

Regular price $350.00 USD
Sale price Regular price
Sper Scientific 870002E pH ORP analyzer, active display

Sper Scientific

870002E

Explosion-Proof Online pH/ORP Analyzer

Regular price $1,350.00 USD
Sale price Regular price
Sper Scientific 870003E two-wire conductivity analyzer, three-quarter view

Sper Scientific

870003E

Explosion-Proof Two-Wire Online Conductivity Analyzer

Regular price $1,500.00 USD
Sale price Regular price
Sper Scientific 870009A online conductivity and acid base analyzer

Sper Scientific

870009A

Online Conductivity and Acid/Base Analyzer

Regular price $997.50 USD
Sale price Regular price
Sper Scientific 870018 online silicate analyzer, angled view

Sper Scientific

870018

Online Industrial Silicate Analyzer

Regular price $12,497.50 USD
Sale price Regular price
Sper Scientific 870019 phosphate analyzer, angled view

Sper Scientific

870019

Online Industrial Phosphate Analyzer

Regular price $12,497.50 USD
Sale price Regular price
Sper Scientific 870020 industrial online sodium analyzer

Sper Scientific

870020

Online Industrial Sodium Analyzer

Regular price $8,747.50 USD
Sale price Regular price
Digital dissolved oxygen sensor

Sper Scientific

870001-DO

Online Digital Dissolved Oxygen Sensor

Regular price $1,147.50 USD
Sale price Regular price
Industrial online ORP sensor, front view

Sper Scientific

870002-ORP

Online Industrial ORP Sensor

Regular price $175.00 USD
Sale price Regular price
GPE100 industrial glass pH electrode with red threaded fitting

Sper Scientific

870002-PHG1

Online Industrial Glass pH Electrode - Waste Water (PTFE)

Regular price $150.00 USD
Sale price Regular price
Sper Scientific 870003-ICE-01F conductivity sensor product photo 3 on white background

Sper Scientific

Online Industrial Conductivity Sensor with Dual 3/4-Inch Thread

Regular price $125.00 USD
Sale price Regular price
Industrial trace dissolved oxygen sensor with stainless steel flow cell and installation fittings on a white background

Sper Scientific

870007-PWDO

Online Trace Dissolved Oxygen Sensor for High-Purity Water

Regular price $1,325.00 USD
Sale price Regular price
Industrial PTFE pH and temperature sensor with cable and dual NPT threads on a white background

Sper Scientific

870002-PHF

Online Industrial PTFE pH and Temperature Sensor

Regular price $150.00 USD
Sale price Regular price
Ultra-pure water pH electrode with gray twist-lock housing, sealing rings and detached black protective cap on white background

Sper Scientific

870002-PHA

Online Ultra-Pure Water pH and Temperature Electrode

Regular price $362.50 USD
Sale price Regular price
Industrial desulfurization pH sensor with black PPS body, upper and lower threads and cable on a white background

Sper Scientific

870002-PHC8X

Online Industrial Desulfurization pH Sensor

Regular price $600.00 USD
Sale price Regular price