Home Smart Industrial Potassium Sensor K485
Potassium Sensor
K485
Potassium Sensor K485

Smart IoT Monitoring
RS-485 & Wi-Fi interfaces. No app or meter required. QR Code access and OTA updates.

All-in-One IP68 Design
Built-in IoT and sensor, corrosion-resistant and fully submersible.

Stable DO Measurement
Temperature compensation, isolated cable, and surge protection.

Smart Calibration
Web-based three-point calibration with stored settings and the latest three calibration records.

AI Smart Maintenance
Smart electrode diagnostics, optional auto-cleaning, status alerts, and last-reading hold.


–Application areas– Aquaculture, Seawater, Wastewater, Groundwater, Rivers, Plant Nutrient Solutions.
Feature of Product
Network Interface RS-485 and Wi-Fi web dual interface, no need to install extra apps, supports monitoring and operation via phone or computer Smart Calibration Webpage Interface Scan with your phone to correct


Waterproof Design IP68 waterproof rating, can be directly submerged in rivers, wastewater, or seawater for measurement Automatic Cleaning Optional auto-cleaning function extends maintenance intervals
Optional Code & Specifications
K485 Code 1 Code 2 Code 3
Code 1 Function Code 2 Connector Code 3 Cable / Hose Length
N No Auto-Cleaning C Quick plug 3N 3 m + bare wire
3C 3m + quick plug
10N 10 m + bare wire
10C 10 m + quick plug
A24 Auto-Cleaning,
DC 24V air pump
F Cable Head 20N 20 m + bare wire
20C 20 m + quick plug
x N x m + bare wire
x C x m + quick plug
Code 1 Function
N No Auto-Cleaning
A24 Auto-Cleaning,
DC 24V air pump
Code 2 Connector Code 3 Cable / Hose Length
C Quick plug 3N 3 m + bare wire
3C 3m + quick plug
10N 10 m + bare wire
10C 10 m + quick plug
F Cable Head 20N 20 m + bare wire
20C 20 m + quick plug
x N x m + bare wire
x C x m + quick plug
K485 Specification Temperature Specification

Measuring

Range

0~10000 mg/L (custom)
Slope 70~130%

Temperature

Principle

NTC30K
Accuracy -10~120°C (ATC)
Accuracy ±5% of reading ± 0.5 mg/L Resolution ±0.2°C
Resolution 0.01 mg/L Resolution 0.1°C
Reproducibility ±3% of reading ± 0.5 mg/L Reproducibility 0.1°C
OperatingParameters Operating Temperature : 5~50 °C Other Specification

Response

Time

T90 ≤120 S Link Above 3/4" NPT thread 
Link Below M42 thread 
Communication RS-485 Modbus RTU 
Wi-Fi web page, no app needed 
QR code opens the web page 
(192.168.1.80) 

Housing

Material

PP,  food grade, acid/alkali-proof 

Electrode

Material

PVC

Dimension Ø50 x L213.9mm
Weight ≤340g
Safety certification CE (EU) 
FCC (US)
Power Auto-Cleaning : DC 24V (Optional) 
No Auto-Cleaning : DC 9~36V

Power

Consumption

Auto-Cleaning : 6.8W
No Auto-Cleaning : 0.8W
International Protection Marking

IP68(CNS 14165)
Origin
Taiwan
Technical
Principle

The sensing tip detects K⁺ potential changes, converted to concentration with compensation for accurate data.

Data Res.

16-bit (0.001% F.S)

Surge Prot. DC 8000V
Power Iso.

DC 1500V

Comm. Iso. RS-485 2500Vrms
Protection

Polarity, overload, shorts

Installation Submersion, tee or insertion
K485 Specification

Measuring

Range

0~10000 mg/L (custom)
Slope 70~130%
Accuracy ±5% of reading ± 0.5 mg/L
Resolution 0.01 mg/L
Reproducibility ±3% of reading ± 0.5 mg/L
OperatingParameters

Operating Temperature : 5~50 °C

Response

Time

T90 ≤120 S
Communication RS-485 Modbus RTU 
Wi-Fi web page, no app needed 
QR code opens the web page 
(192.168.1.80) 
 Safety certification CE (EU) 
FCC (US)
Origin
Taiwan
Temperature Specification

Temperature

Principle

NTC30K
Measuring Range -10~120°C (ATC)
Accuracy ±0.2°C
Resolution 0.1°C
Reproducibility 0.1°C
Other Specification
Link Above 3/4" NPT thread 
Link Below M42 thread 

Housing

Material

PP,  food grade, acid/alkali-proof 

Electrode

Material

PVC

Dimension Ø50 x L213.9mm
Weight ≤340g
Power Auto-Cleaning : DC 24V (Optional) 
No Auto-Cleaning : DC 9~36V

Power

Consumption

Auto-Cleaning : 6.8W
No Auto-Cleaning : 0.8W
International Protection Marking IP68(CNS 14165)
Technical
Principle The sensing tip detects K⁺ potential changes, converted to concentration with compensation for accurate data.
Data Res.

16-bit (0.001% F.S)

Power Iso.

DC 1500V

Protection

Polarity, overload, shorts

Surge Prot. 8000VDC
Comm. Iso. RS-485 2500Vrms
Installation Submersion, tee or insertion
PRODUCT VIDEO
PATENT / CERTIFICATION / AWARD
K485-CE
K485-FCC
R.O.C Patent No.M618722
China Patent No.15550036
IAIA國際創新 發明聯盟總會-金牌
MTE發明獎-金牌
ACHIEVEMENT
Tainan Headquarters/Factory No.33, Ln. 428, Sec. 3, Wenhua Rd., Rende Dist., Tainan City 717, Taiwan (R.O.C.)
+886-6-311-0008 +886-6-311-0522
[email protected]
Taichung Branch No. 1, Ln. 169, Sec. 3, Hanxi W. Rd., Beitun Dist., Taichung City 406, Taiwan (R.O.C.)
+886-4-243-75189
[email protected]