SZ4000
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- CE & EMC Certified
- 12-Month Warranty
- Reply Within 12 Hours
Environmental & Water Quality Sensors
SZ4000Water Monitoring
Online Multi-Parameter Water Quality Sensor
Multi-parameter water quality sensor measures temperature, pH/ORP, dissolved oxygen, conductivity, and turbidity, plus chlorophyll, blue-green algae, and oil in water; RS-485 MODBUS output. pH 0–14 (±0.02 pH), DO 0–50 mg/L or 0–500% saturation, conductivity 0–200 mS/cm. Supports up to 6 probes, self-cleaning brush; for sewage, surface water, ocean, groundwater.
- pH Range/Accuracy
- 0-14 pH / ±0.02 pH
- Dissolved Oxygen Range/Accuracy
- 0-50mg/L or 0-500% Saturation / 0-20mg/L:±1% or ±0.2mg/L; >20mg/L:±5% or ±0.6mg/L
- Output
- RS-485, MODBUS protocol
- Operating Temperature
- 0-50℃
- Digital sensor with RS485 output and standard MODBUS protocol
- Calibration data stored in probe; waterproof connector for easy plug-in replacement
- Self-cleaning brush cleans at set intervals to remove bubbles and contamination
- Supports up to 6 probes: pH, DO, conductivity, turbidity, ORP, chlorophyll, BGA, oil
- Response time ≤30 s; voltage, communication, and cleaning brush abnormal alarms
Specifications
SZ4000 technical data
| Parameter | Value |
|---|---|
| Measured Depth | 0-30m |
| Size | Φ84mm*476mm |
| Output | RS-485, MODBUS protocol |
| Power Supply Requirement | Complete machine: DC 12-24V, ≥1A; probe: 9-24V, ≥1A |
| Cable Length | With waterproof connector, 10m (default), customizable |
| Material | POM, titanium alloy, anti-fouling copper |
| IP Rating | IP68 |
| Operating Temperature | 0-50℃ |
| pH Range/Accuracy | 0-14 pH / ±0.02 pH |
| Dissolved Oxygen Range/Accuracy | 0-50mg/L or 0-500% Saturation / 0-20mg/L:±1% or ±0.2mg/L; >20mg/L:±5% or ±0.6mg/L |
| Conductivity Range/Accuracy | CT: 0-200mS/cm (0-2mS/cm, 2-20mS/cm, 20-200mS/cm); SAL: 0-175ppt; TDS: 0-128000mg/L; Accuracy: ±1% or 0.01mS/cm; ±1ppt |
| Turbidity Range/Accuracy | 0-1000NTU or 0-4000NTU / ±5% or 0.3NTU |
Applications
Where the SZ4000 is used
Water quality
Aquaculture
Smart agriculture
Weather stations
Environmental monitoring
Ordering
Terms & how ordering works
- MOQ
- 1 pc (flexible, no minimum for most products)
- Lead time
- 2-3 days for in-stock items, 15-30 days for custom orders
- Warranty
- 12-month warranty on all products
- Shipping
- FOB Ningbo / CIF available
- 01
Send Requirements
Medium, range, output and quantity.
- 02
Quote in 12h
Matched model, price and lead time.
- 03
Pre-shipment Check
Every unit inspected against spec.
- 04
Ship FOB / CIF
Export documents handled for you.
Request a Quote
SZ4000 Online Multi-Parameter Water Quality Sensor
Sales engineer replies within 12 hours
Or WhatsApp +86-15958288207
Related Products
SZ4000 questions
What ranges are available for the SZ4000?
Standard coverage is 0-14 pH / ±0.02 pH. Other spans, outputs, and process connections can be sourced to match the application. Send the working pressure and medium and we will confirm the exact option.
What is the MOQ and lead time?
1 pc (flexible, no minimum for most products). 2-3 days for in-stock items, 15-30 days for custom orders. Samples are available, with freight on the buyer’s account.
Can the SZ4000 be customized?
Range, output signal, process connection, cable length customizable through our supply partners.
Do you manufacture this transmitter?
SIBXSUN is an industrial instrumentation supplier in Ningbo, not the factory. We source the SZ4000 from qualified partners, inspect before shipment, and handle export documents and logistics.
Need the right online multi-parameter water quality sensor for your process?
Send the medium, range, output, and quantity. We will confirm the matching option and a FOB Ningbo quote.
