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KaiNaFu Releases the KNF-1500: A Portable Water Quality Analyzer Built for Real Field Testing

Field water testing has always involved a compromise. Laboratory-grade accuracy traditionally meant fragile glass electrodes, electrolyte refills, warm-up time and a trolley of separate meters. KaiNaFu's answer to that compromise is the KNF-1500 portable water quality analyzer for field testing — a handheld multi-parameter detector that combines up to five sensor inputs in one submersible probe with titanium alloy bodies, fluorescence dissolved oxygen technology and direct RS-485 Modbus output.

Designed and manufactured in Shenzhen, China, and CE certified, the KNF-1500 is aimed at the people who actually stand at the water's edge: environmental monitoring crews, aquaculture technicians, municipal utility inspectors, wastewater compliance officers and emergency response teams who need defensible numbers within minutes, not days.

One Handheld Meter, Five Parameters, Zero Reconfiguration

The KNF-1500 sensor unit accepts up to four freely combinable sensor inputs, and the handheld detector reads up to five parameters simultaneously. Each sensor is recognized automatically the moment it is connected, so an operator can move from a river survey to a discharge outlet check without touching a menu tree. Available measurement channels include dissolved oxygen, pH, ORP, conductivity, salinity, TDS, turbidity, temperature, chlorophyll, blue-green algae, ammonia nitrogen, oil in water and depth.

• Handheld portable design — 460 g detector with a backlit 54.38 mm LCD and short-cut keypad for gloved, on-site operation.
• Fluorescence dissolved oxygen sensor — optical lifetime measurement with no oxygen consumption, no flow-rate limit, no electrolyte, no preheating and a 30-second response time.
• Titanium alloy sensor bodies with PEEK, POM and 316L wetted parts for long-term corrosion resistance in fresh, brackish and waste water.
• IP68 submersible probe, IP67 meter — detachable handle and protective cover, 0–30 m working depth.
• RS-485 with MODBUS protocol for direct integration into data acquisition platforms, buoys and monitoring stations.
• Built-in barometric pressure compensation from 50 to 115 kPa, applied automatically to dissolved oxygen readings.
• Large log memory plus Meter Read PC software for calibration records, data export and trend analysis.
• Dual power architecture — 2 × D-size batteries in the probe, 2 × 18650 rechargeables in the meter, for full-day field sessions.

Specifications at a Glance

Where the KNF-1500 Performs Best

• Surface water, river and lake quality surveys and long-term trend monitoring
• Aquaculture and fishery pond monitoring, including night-time dissolved oxygen checks
• Municipal water supply, drainage and sewage treatment plant verification rounds
• Industrial wastewater discharge testing and environmental compliance sampling
• Emergency spill response and mobile field sampling programs

Ordering, OEM and Lead Time

Model KNF-1500 ships as a complete field kit. Buyers specify the required sensor combination — pH, ORP, dissolved oxygen, conductivity, turbidity, temperature, oil in water, chlorophyll, blue-green algae, ammonia nitrogen or depth — together with cable length. OEM branding and customized sensor configurations are available. Minimum order quantity is 1 piece, supply ability is 500 pieces per month, delivery runs 10–15 working days on T/T terms, and each unit is packed in an eco-friendly paper box with shock-proof foam insert and export carton.

Looking for a dependable portable water quality analyzer for field testing? Tell KaiNaFu your parameters, cable length and market, and our engineering team will configure the KNF-1500 to your application and quote within one business day.