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RS485 PH ORP Analyzers

China Suzhou Delfino Environmental Technology Co., Ltd. certification
China Suzhou Delfino Environmental Technology Co., Ltd. certification
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RS485 PH ORP Analyzers

RS485 PH ORP Analyzers
RS485 PH ORP Analyzers
RS485 PH ORP Analyzers RS485 PH ORP Analyzers RS485 PH ORP Analyzers RS485 PH ORP Analyzers

Large Image :  RS485 PH ORP Analyzers

Product Details:
Place of Origin: China
Brand Name: Daruifuno
Certification: CE
Model Number: APX2-G4A/G4D
Payment & Shipping Terms:
Minimum Order Quantity: Negotiable
Price: Negotiable

RS485 PH ORP Analyzers

Product Name: ORP PH Analyzer PH Range: -2 ~ 16pH
ORP Range: ± 2000mV Accuracy: ± 0.02 PH/ ± 2 MV
Communication: RS485 MODBUS RTU Relay Control: 2 SPST Relays
OTA: WIFI(GSM, CDMA Optional) Enclosure Material: IP66
Operating Temperature: 0~60℃ Display Screen: 3.2 Inch LCD Screen
Power Consumption: 10W Weight: 800g
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Introduction Of The PH ORP Analyzer

  • The PH ORP meter water quality transmitter with differential signal input is compatible with the DRFN pH sensor with grounded electrode;
  • The housing protection grade is IP66, it can effectively isolate the pollution of the external environment;
  • The PH ORP analyzer has a 3.2-inch display screen, using 128*64 black and white graphic dot matrix LCD;
  • There are two adjustable 0/4~20 mA active current loop outputs, each of which allows the user to specify the measurement value, pH, ORP, or corresponding temperature.

  • This meter has time history and data recording functions, it can be accurate to the second and record measurement data on time;
  • There are 2 SPST multifunction relays that can be set.
  • There is a two-wire RS485 interface, the communication protocol is standard MODBUS RTU, and it also supports JavaScript Object Notation text data format.




Product Name

pH ORP Analyzer

Product Model APX2-G4A/G4D
Software Version

DRFN PH Analysis software V1.0

pH Range


ORP Range ± 2000mV
Temperature Range

-10~150℃ /14~302℉


0.01pH / 1mV/ 0.1℃

Analog Current Output

2 settable 0/4~20mA active current loop output


Remote management technology WIFI(GSM, CDMA optional)

Relay Control

2 settable SPST relays

Communication Method RS485 MODBUS RTU

Screen Display

128 * 64 LCD

Operating Environment

0~60℃, RH< 95%

Storage Environment

-20~70℃, RH < 55%

Power Supply 100~240 V AC
Power Consumption 10 W


144×144×120 mm (Hole size 138*138mm)

Weight 800g

Mounting Method

Wall installation, pipe clamp installation, panel installation



RS485 PH ORP Analyzers 0



Advantages Of The PH ORP Analyzer


1. The instrument is equipped with OTA(over-the-air)download technology. As an intelligent configuration option of the instrument, it can remotely upgrade software, diagnose faults, and assist in setting instrument parameters. This approach not only reduces the workload of on-site service but also minimizes the waiting time for service.


2. As the temperature of the aqueous solution changes, the concentration of hydrogen ions and hydroxide ions ionized from the aqueous solution will also change. The pH ORP analyzer has a temperature automatic compensation function, and when the temperature of the instrument changes, it will also compensate the hardware changes caused by temperature drift.



Applications Of The PH ORP Analyzer


Water treatment monitoring: Drinking water, surface water, water quality, groundwater, swimming pool, etc.


Industrial process monitoring and dosing control management: Chemical, petroleum, paper, food and medicine, electroplating, PCB manufacturing, etc.



Ordering Information


Model Power
APX2-C3A AC: 100 ~240V
APX2-C3D DC: 18 ~ 36V


If you are interested in the product pH ORP analyzer APX2-G4A/G4D, please contact us.




Contact Details
Suzhou Delfino Environmental Technology Co., Ltd.

Contact Person: Ms. Yuki Fu

Tel: +8615716217387

Send your inquiry directly to us (0 / 3000)