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KNF-1500 Portable Multiparameter Water Quality Analyzer Enters Series Production

Shenzhen, China - The KNF-1500 portable multiparameter water quality analyzer is now available for international buyers, bringing laboratory-grade measurement of pH, ORP, dissolved oxygen, conductivity, salinity, TDS, turbidity and temperature into a single handheld field instrument.

Field engineers have long accepted a difficult trade-off: accurate water quality data required benchtop instruments and a fixed power supply, while portable meters sacrificed stability, needed constant calibration, or covered only one or two parameters. The KNF-1500 portable multiparameter water quality analyzer is designed to remove that trade-off. It combines a handheld reader with up to four interchangeable digital sensors, and it recognises each sensor automatically the moment it is connected, so a technician can move from pH to dissolved oxygen to turbidity on the bank of a river without touching a configuration menu.

Why the Analyzer Changes Field Work

• Five parameters at once. The handheld unit accepts up to four sensor inputs and reads up to five measurement values simultaneously, including a temperature channel that is used for automatic compensation.
• Optical dissolved oxygen. The DO sensor uses fluorescence lifetime technology. It consumes no oxygen while measuring, so there is no flow rate requirement, no electrolyte to preheat and no membrane to replace. Response time is as low as 30 seconds.
• Built for real water. Every sensor body is machined from titanium alloy, with PEEK, POM and 316L stainless steel wetted parts, so the probe unit survives brackish water, wastewater and long immersion.
• IP68 probe, IP67 meter. The sensor unit is rated IP68 and submerges to 30 m, while the handheld reader is rated IP67 for rain, spray and accidental drops.
• Digital output. RS-485 with MODBUS protocol lets the analyzer stream readings directly into a data acquisition platform, SCADA system or IoT gateway.
• Long field days. The sensor unit runs on two D-size batteries and the reader on two 18650 rechargeable cells, with a backlit 54.38 mm LCD that stays readable in low light.

Technical Snapshot

The sensor unit measures Φ66 mm x 532 mm and weighs 1.95 kg with four sensors and a 5 m cable attached. The reader measures 220 x 96 x 44 mm, weighs 460 g and includes built-in barometric pressure compensation that corrects automatically across 50-115 kPa. Data logging is supported, and the Meter Read PC program exports stored records for reporting.

Where It Fits

Environmental consultancies use the analyzer for river, lake and reservoir surveys where sampling points are reachable only on foot. Aquaculture operators check pond dissolved oxygen and temperature within seconds of arriving at the cage. Municipal treatment plants and industrial dischargers verify effluent against permit limits without waiting for laboratory turnaround. Emergency response teams deploy it for spill assessment, and because the meter streams RS-485 Modbus data, the same unit doubles as a calibration reference for permanently installed online monitoring stations.

Availability

The KNF-1500 portable multiparameter water quality analyzer ships with a 5 m cable as standard, and cable length, sensor combination and parameter range can all be customised for OEM and distributor programs. Minimum order quantity is one piece, delivery time for standard configurations is 10 to 15 working days, and supply capacity stands at 500 pieces per month. Payment is accepted by T/T.

Buyers evaluating a portable multiparameter water quality analyzer for aquaculture, surface water monitoring or industrial wastewater compliance can contact our technical team with their required parameter list, and we will propose the matching sensor configuration, cable length and accessory set.