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Contact Information
Consultation Hotline:
Address: No. 336, Heping Avenue, Wuchang District, Wuhan City
Message InquirypH Sensors
Technical Features:
All pH Sensors manufactured by our company are developed using German technology and produced in strict accordance with German manufacturing processes. To ensure product quality, all key raw materials are directly imported from overseas. Currently, most of our products are exported to more than ten countries, including the United States, Germany, France, the United Kingdom, Australia, Russia, and South Korea. Years of practical experience have proven that our pH Sensors boast superior performance and stable, reliable quality. Our comprehensive range of pH Sensors can be widely applied in various industrial production control processes!
ASP3151D Series
As shown in the figure:
● Digital pH sensor with RS485 output, converting analog signals into digital signals
● No calibration required—just plug in and use
● Zero point and slope can be stored inside the Sensor
● PG13.5 thread, internationally standard size
● Polymer electrolyte filling—no need to replenish the electrolyte, making it convenient to use.
● Data can be transmitted over long distances, and measurement values are stable and reliable.
● VP connector or fixed cable connection; cable length can be customized according to user requirements
● Outer tube material: glass
● Dimensions: ∅12×120, 225, or other sizes
Model Selection:
ASP3111D with Fixed Cable
ASP3151D with VP Connector
ASP3351D High-Temperature Version, Temperature Resistance: 0–130°C, with VP Connector
PRT2121 Series
As shown in the figure:
● Strong anti-interference capability, resistant to contamination and clogging, long service life, and continuous, stable measurements.
● The reference system is filled with a polymeric polymer, making it easy to use and eliminating the need to replenish the electrolyte.
● Sensitive response (it can reach more than 95% of the measured value within a few seconds).
● 3/4 NPT pipe thread installation, with secure and reliable sealing
● Pressure resistance: 0.6 MPa, zero potential E0 =7pH
● Dimensions: ∅22×110mm
● Outer tube material: plastic
● Temperature compensation resistors: PT100, PT1000, 10 kΩ, 2.252 kΩ, 22 kΩ, etc.
● pH range: 0–14 pH
● ORP range: ±2000 mV
● Conductivity range: 0–20,000 μS/cm
● Temperature range: 0–80°C
● Residual chlorine range: 0–20 mg/L
Model Selection:
● 3-in-1 Sensor:
PRT2121 pH/ORP/Temperature
PLT2121 pH/Residual Chlorine/Temperature
PCT2121 pH/EC/Temperature
RCT2121 ORP/EC/Temperature
CLT2121 EC/Residual Chlorine/Temperature
● 4-in-1 Sensor:
PRCT2121 pH/ORP/EC/Temperature
PCLT2121 pH/EC/Residual Chlorine/Temperature
PRT2121D Series
As shown in the figure:
● Digital Sensor with RS485 output, which directly converts analog signals into digital signals
● Data is stored inside the Sensor, such as important parameters like zero point and slope
● No calibration required—just plug in and use
● Convenient to use, no transmitter required; the Sensor outputs a digital signal that can be directly connected to a computer
● The Sensor’s digital output can be directly converted into WIFI or GPRS signals for wireless transmission
● Data can be transmitted both over short and long distances, with stable and reliable measurement values
● 3/4 NPT threaded connection for top and bottom mounting, ensuring secure and reliable sealing
● Withstand voltage of 0.6 MPa, zero potential E0 =7pH
● Dimensions: ∅28×176mm
● Outer tube material: plastic
● pH range: 0–14 pH
● ORP range: ±2000 mV
● Conductivity range: 0–200,000 μS/cm
● Temperature range: 0–80°C
● Residual chlorine range: 0–20 mg/L
Model Selection:
● Digital 3-in-1 Sensor with RS485 Output:
PRT2121D pH/ORP/Temperature
PLT2121D pH/Residual Chlorine/Temperature
PCT2121D pH/EC/Temperature
RCT2121D ORP/EC/Temperature
CLT2121D EC/Residual Chlorine/Temperature
● Digital 4-in-1 Sensor with RS485 Output:
PRCT2121D pH/ORP/EC/Temperature
PCLT2121D pH/EC/Residual Chlorine/Temperature
ASY2121 Series
As shown in the figure:
● 3/4 NPT threaded connection for secure and reliable sealing
● The sensor is with fixed cable, the length can be adjusted according to user requirements
● Measurement range: 0 ppm to saturation, 0.1% to 200%, 0 to 20 mg/L
● Temperature range: 0–80°C; pressure resistance: 0.4 MPa
● Dimensions: ∅28×165mm
● Outer tube material: PPS plastic
● Temperature-compensated resistors: PT100, PT1000, 2.252 kΩ, 10 kΩ, 22 kΩ, etc.
Model Selection:
● Polarographic:
ASY2121
ASY2121D Digital Sensor with RS485 Output, No Calibration Required, Plug and Play
● Optical:
ASYF2121D Digital Sensor with RS485 Output, No Calibration Required, Plug and Play
● Galvanic:
ASYY2121
ASY2151 Series
As shown in the figure:
● 3/4 NPT threaded connectior for secure and reliable sealing
● VP connector, easy to install and replace
● Measurement range: 0 ppm to saturation, 0.1% to 200%, 0 to 20 mg/L
● Temperature range: 0–80°C; pressure range: 0.4 MPa
● Dimensions: ∅28×165mm
● Outer tube material: PPS plastic
● Heating and compensation resistors: PT100, PT1000, 2.252 kΩ, 10 kΩ, 22 kΩ, etc.
Model Selection:
● Polarographic:
ASY2151
ASY2151D Primary-cell oxygen smart Sensor with RS485 output, no calibration required, plug and play
● Optical:
ASYF2151D Intelligent Sensor with RS485 Output, No Calibration Required, Plug and Play
● Galvanic:
ASYY2151
FS-2A
● Pressurized Sheath
● Suitable for refillable pH and ORP electrodes
● Installed on the top, side, or in a pipeline
● Material: 316L stainless steel
● 1-1/4 nut fixed connection
FS-2B
● Installed on the top, side, or in the pipeline
● Suitable for gel pH, DO, and ORP electrodes
● Material: 316 stainless steel
● 1-1/4 nut fixed connection
International Sales Hotline:
Address: No. 336, Heping Avenue, Wuchang District, Wuhan City
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