Online Multi-parameter Meter

Online multi-parameter controller pH/ORP/Residual Chlorine/Turbidity,can be customized test items.
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Product Details

Online multi-parameter meter

Online multi-parameter meter

Online multi-parameter meter


Ten-inch high-definition LCD industrial touch screen display multiple parameters at the same time: ORP、 residual chlorine, pH、 turbidity, temperature

Touchable screen keys, one key switch parameters, graphs, query history data, easy to operate.

Wireless SIM card connection, remote computer monitoring, mobile phone APP real-time query.

Instrument uses high-precision signal acquisition and amplification circuit, extremely high measurement accuracy, good stability.

pH automatic temperature compensation, automatic identification of standard liquid, convenient calibration, accurate test parameters.

Residual chlorine, automatic / manual pH、 temperature compensation, small range sensor detection parameters more accurate.

The turbidity digital electrode, use reset settings and use without calibration.

ORP digital electrode, easy calibration, strong anti-interference and fast response.

Parameter setting according to the screen prompt, the operation man-machine interaction, simple and convenient.

In-machine LCD backlight can be set according to the environment or operation time, more humane.

Three roads relay output control, can automatically alarm or with the dosing pump and other peripherals for automatic water quality control.

Two analog control signal outputs, external control circuit and equipment.

Restore factory settings to avoid data reset after misoperation.

Watchdog setting ensures that the instrument does not crash during use.

IP65 protection grade, waterproof, moisture-proof, dustproof to ensure the service life of the instrument.

Online multi-parameter meter






AC power supply

186-240V 50/60Hz

Analog Control A

0-20mA or 4-20mA

Working condition

Ambient temperature0-60℃,relative humidity<90%RH

Analog Control B

0-20mA or 4-20mA

pH alarm and control

Relay load AC220V 10A

Display resolution


Residual Chlorine alarm and control

Relay load AC220V 10A



ORP measuring range


Temperature measuring range


ORP accuracy


Temperature resolution


ORP resolution


Temperature accuracy


pH measuring range


Turbidity measuring range


pH resolution


Turbidity resolution


pH  accuracy


Turbidity accuracy


pH standard solution


Controller Residual Chlorine range


Hypochlorous acid measuring range


Residual Chlorine sensor measuring range


Hypochlorous acid resolution


Residual Chlorine resolution


Residual Chlorine accuracy

 When the pH value is between 5.0-7.2 and constant, the residual chlorine accuracy ±0.03 mg/L or 3%, whichever is greater(Under constant pH test, pH within the error range of±0.2)         

When the pH value is between 7.2-8.5 and constant, the residual chlorine accuracy ±10%(Under constant pH test, pH within the error range of±0.5)

When the pH value is between 8.5-9, the residual chlorine accuracy ±20%

When the pH is greater than 7.2, it is not suitable to test the low residual chlorine value; When the pH is greater than 9, the test value will be inaccurate

When measurement below 0.10 mg/L, the concentration error can not be calculated by percentage;When DPD  test error, the error is calculated by ±0.03 mg/L.

Residual Chlorine repeatability

0.03 mg/L or 3% whichever is greater

Online multi-parameter meter

About us 

Since our founding in 2008, we've led the industry in developing innovative solutions to help you manage your water more efficiently and accurately.Water quality is something we take very seriously at Lohand. We know that your water analysis has to be right, which is why we’re dedicated to providing you with the complete solutions you need to feel confident in your analysis.Our experts understand your applications and we’re committed to helping you discover optimal solutions for your specific needs.Lohand is confident to provide you with the breakthrough products and expert guidance you’ve come to expect.Valuing ease-of-use, accuracy, and reliability, we craft our portfolio of solutions around the unique regulatory and operational challenges your facility faces—placing engineers and plant managers Lohand has expertise and solutions to help you. This includes lab instrumentation, in-line process solutions, and Real-Time Control Systems, as well as a corps of service and training professionals to keep you up and running at maximum efficiency.By developing reliable, easy-to-use solutions, as well as providing you with access to knowledgeable expertise and support, Lohand is helping ensure water quality all across the globe.Across a wide array of industrial facilities. From municipal waste water and drinking water plants to industries such as food and beverage, power generation, chemical manufacturing, and dozens more.Today, more than ever, we are acting upon our mission of ensuring water quality for people around the world. Our customers across the globe can be confident that their unique requirements are understood and supported by people who are within easy reach.Lohand is confident to provide you with the breakthrough products and expert guidance you’ve come to expect.

Online multi-parameter meter

About us

Multi-parameter water quality analyzer series

Outdoor multiple in one meter

COD reactor

Multi-parameter portable water quality detector

Water sample heating thermostat

Fluorescent dissolved oxygen electrode

Pen type salinometer

Residual chlorine electrode

Portable water quality analyzer

DO dissolved oxygen meter

Digital refractometer

Rapid detection series

Color comparison tube series

Online multi-parameter meter


1.How can I get a sample ? What’s the sample fee? Is it refundable ?

Answer: Please confirm with us the model you’ll purchase, and you prepaid the sample fee , after sample tested and qualified, we will refund this sample fee when you place the bulk order. We can send out the sample within 2 working days after receiving payment.

2.What’s the lead-time ?

Answer: Normally it takes 3-5 working days after receiving payment.

3. Can you do OEM service ?

Answer: We can provide the specific products needed around the world at significantly lower costs.Lohand also offers a Private Labeling Program to provide high quality lab supplies at lower prices.If you need further information regarding our OEM or Private Label programs, please contact us freely.

4.Can we buy 1 pc for sample testing?

Answer:Yes, we are glad to send 1pc for quality testing if we have stock of the model you required.

5.What is the payment method?

Answer:Western union, TT, Moneygram, Paypal, L/C, D/A, D/P etc.

Online multi-parameter meter


Purpose of measurement

Used to measure sea water and control the salinity of water from fisheries and fish farms, natural sea water for aquariums, artificial sea water, and the salt water used for fish storage.

An effective tool at Aquaculture Cooperative Associations or in Aquaculture Research institutes

Drinking water

Purpose of measurement

Nothing is more important than your health and that of your family and visitors. If you use your own water source for drinking, you need to have it tested every so often. You don’t want to be responsible for anyone getting sick by drinking your water.

Fruit juice

Purpose of measurement

Helping the grower to determine the best time for harvest

Adjust the amount of water and fertilizer in the soil by monitoring the sugar content of growing plants

Ensure that consumers can have the very best tasting fruits

The consumer will know the quality of the products they are going to purchase

Swimming pool water

Purpose of measurement

Regular pool water testing and maintenance of the chemicals are essential for ensuring a safe, comfortable swimming environment and preserving the longevity of pool finishes and equipment. 

Failure to monitor and maintain water quality can lead to damage or deterioration to the pool features, materials, and equipment. Above all, it can cause water conditions that may harm swimmers and cause a variety of illnesses.

Industrial waste 

Purpose of measurement

Wastewater discharges from industrial may contain pollutants at levels that could affect the quality of receiving waters or interfere with publicly owned treatment works (POTWs) that receive those discharges.


Purpose of measurement

Tons of instruments used in laboratory every single day. Lohand provide reliable and robust products with competitive price. 

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