Kainafu has officially introduced the KNF-500PRO self cleaning water quality sensor, an online multi-parameter monitoring platform built on a fully modular probe architecture. Every single-parameter sensor is an independent RS485 digital probe that seals water-tightly onto a central body, and calibration data is stored inside each probe so that field calibration, replacement and maintenance can be completed on site without dismantling the whole instrument. One 84 mm × 476 mm housing accepts up to six probes and seven parameters, which makes the platform equally suitable for a wastewater aeration basin and a marine aquaculture cage.
Fouling is the single most common reason online water quality data drifts. Biofilm, micro-bubbles, algae and sediment settle on optical windows and electrochemical surfaces within days, and the resulting bias is usually invisible to the operator until a compliance report is rejected. The KNF-500PRO addresses this at the hardware level: a central automatic cleaning brush sweeps every installed probe at a programmable interval, 30 minutes by default, removing bubbles and contamination before they harden into a coating. Combined with titanium alloy, POM and anti-fouling copper construction, the result is a sensor that keeps its accuracy through long unmanned deployment cycles instead of asking a technician to climb a ladder every week.
| Model | Kainafu KNF-500PRO |
|---|---|
| Probe capacity | Up to 6 probes (7 parameters) + 1 central cleaning brush |
| Output | Continuous RS-485, MODBUS protocol |
| Cleaning | Automatic brush, default interval 30 minutes, settable |
| Protection | IP68 |
| Depth | 0–30 m (pH / ORP 20 m) |
| Power supply | DC 12–24 V, ≥1 A (whole unit); 9–24 V, ≥1 A (single probe) |
| Consumption | 0.8 W (brush off) / 2 W (brush rotating) |
| Dimensions / weight | 84 mm × 476 mm / 2.3 kg with 6 sensors |
| Materials | POM, titanium alloy, anti-fouling copper |
| Certification | ISO 9001:2015 |
| Parameter | Principle | Range | Accuracy |
|---|---|---|---|
| Dissolved oxygen | Fluorescence | 0–50 mg/L or 0–500% sat. | ±1% or ±0.2 mg/L |
| Turbidity | 90° scattered light | 0–1000 / 0–4000 NTU | ±5% or 0.3 NTU |
| Conductivity / salinity | Four-electrode | 0–200 mS/cm; 0–175 ppt | ±1% or 0.01 mS/cm |
| pH | Glass electrode | 0–14 pH | ±0.02 pH |
| ORP | Platinum electrode | -1999 to +1999 mV | ±20 mV |
| Ammonia nitrogen | Ion electrode | 0–100 mg/L (opt. 0–1000) | <0.1% F.S. |
The platform is deployed in municipal and industrial wastewater treatment plants, river and surface-water monitoring networks, groundwater observation wells, marine and freshwater aquaculture, and drinking-water source protection zones — wherever continuous, unattended data is required for months at a time. Because probe combinations are configurable at order stage, a single SKU family covers nutrient removal control, algal bloom early warning and salinity intrusion monitoring.
The KNF-500PRO is available now with a minimum order quantity of one set, 7–15 working days lead time and a supply capacity of 500 sets per month. OEM branding, custom cable lengths and bespoke probe combinations are supported. Distributors and system integrators are invited to contact Kainafu for probe selection guidance and bulk pricing.
Kainafu has officially introduced the KNF-500PRO self cleaning water quality sensor, an online multi-parameter monitoring platform built on a fully modular probe architecture. Every single-parameter sensor is an independent RS485 digital probe that seals water-tightly onto a central body, and calibration data is stored inside each probe so that field calibration, replacement and maintenance can be completed on site without dismantling the whole instrument. One 84 mm × 476 mm housing accepts up to six probes and seven parameters, which makes the platform equally suitable for a wastewater aeration basin and a marine aquaculture cage.
Fouling is the single most common reason online water quality data drifts. Biofilm, micro-bubbles, algae and sediment settle on optical windows and electrochemical surfaces within days, and the resulting bias is usually invisible to the operator until a compliance report is rejected. The KNF-500PRO addresses this at the hardware level: a central automatic cleaning brush sweeps every installed probe at a programmable interval, 30 minutes by default, removing bubbles and contamination before they harden into a coating. Combined with titanium alloy, POM and anti-fouling copper construction, the result is a sensor that keeps its accuracy through long unmanned deployment cycles instead of asking a technician to climb a ladder every week.
| Model | Kainafu KNF-500PRO |
|---|---|
| Probe capacity | Up to 6 probes (7 parameters) + 1 central cleaning brush |
| Output | Continuous RS-485, MODBUS protocol |
| Cleaning | Automatic brush, default interval 30 minutes, settable |
| Protection | IP68 |
| Depth | 0–30 m (pH / ORP 20 m) |
| Power supply | DC 12–24 V, ≥1 A (whole unit); 9–24 V, ≥1 A (single probe) |
| Consumption | 0.8 W (brush off) / 2 W (brush rotating) |
| Dimensions / weight | 84 mm × 476 mm / 2.3 kg with 6 sensors |
| Materials | POM, titanium alloy, anti-fouling copper |
| Certification | ISO 9001:2015 |
| Parameter | Principle | Range | Accuracy |
|---|---|---|---|
| Dissolved oxygen | Fluorescence | 0–50 mg/L or 0–500% sat. | ±1% or ±0.2 mg/L |
| Turbidity | 90° scattered light | 0–1000 / 0–4000 NTU | ±5% or 0.3 NTU |
| Conductivity / salinity | Four-electrode | 0–200 mS/cm; 0–175 ppt | ±1% or 0.01 mS/cm |
| pH | Glass electrode | 0–14 pH | ±0.02 pH |
| ORP | Platinum electrode | -1999 to +1999 mV | ±20 mV |
| Ammonia nitrogen | Ion electrode | 0–100 mg/L (opt. 0–1000) | <0.1% F.S. |
The platform is deployed in municipal and industrial wastewater treatment plants, river and surface-water monitoring networks, groundwater observation wells, marine and freshwater aquaculture, and drinking-water source protection zones — wherever continuous, unattended data is required for months at a time. Because probe combinations are configurable at order stage, a single SKU family covers nutrient removal control, algal bloom early warning and salinity intrusion monitoring.
The KNF-500PRO is available now with a minimum order quantity of one set, 7–15 working days lead time and a supply capacity of 500 sets per month. OEM branding, custom cable lengths and bespoke probe combinations are supported. Distributors and system integrators are invited to contact Kainafu for probe selection guidance and bulk pricing.
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