China Probest Wholesale PINH3-900 Digital NH4N Ammonia Sensor
Product Description
H1: PINH3-900 Digital NH4N Ammonia Sensor | PROBESTI
H2: Product Overview
The PINH3-900 is a digital, online NH4N Ammonia sensor designed for continuous water quality monitoring. It features high accuracy, stable signal output, IP68 waterproof design, and strong anti-interference performance. Suitable for drinking water, wastewater, aquaculture, and industrial process water applications.
H2: Key Features
· Dual-mode measurement: pH & NH4N Ammonia in one probe
· Digital output: RS485 Modbus RTU + 4–20mA (with transmitter)
· High sensitivity and long-term stability
· IP68 protection, suitable for harsh environments
· Easy installation, calibration, and maintenance
· Wide application in water treatment systems
H2: Technical Specifications
· Measurement Range: pH 5–9; NH4N: 0.01-3000mg/L
· Accuracy: ±0.01 pH; ±5%
· Output: 4–20mA & RS485 (Modbus RTU)
· Protection: IP68
· Temperature: 0–45°C
· Material: PPS/Glass electrode
Technical Specifications:
Measurement range | NH4N：0.1~ 3000 mg/L; K+：0.5~5000 mg/L (Optional); PH：5-10; Temp.:0-40℃ |
Resolution | NH4N：0.01 mg/l; K+：0.01mg/L（optional）;PH：0.01; Temp.: 0.1℃ |
Accuracy | NH4N：±5 % or ± 0.2 mg/L (bigger one); K+：±10 % or ±0.2 mg/L（optional）; Temp.: ±0.5℃; pH：±0.1 pH |
Repeatability | ±5% or 0.2mg/l, whichever is greater |
Pressure | Max Pressure: 0.1MPa (10m) |
Power supply | 85-500VAC；DC: 9~36VDC |
Output | 3-way 4-20mA |
Relay | Three-way relays, programmed response parameter and response value |
Communication protocol | MODBUS RS485 |
Storage temperature | 0-50℃ (Non-freezing) |
Operating temperature | 0-40℃ (Non-freezing) |
Dimension | Sensor：Dia55mm*L 342mm |
Transmitter：145*125*162mm(L*W*H) | |
Weight | Sensor：1Kg；Transmitter：1.35Kg |
Protective rate | Sensor：IP68/NEMA6P；Transmitter：IP66/ NEMA4X |
H2: Applications
· Drinking water treatment plants
· Municipal wastewater & sewage treatment
· Industrial process water monitoring
· Aquaculture water quality control
· River, lake, and reservoir monitoring
· Cooling tower & boiler water systems
H2: Certifications & Compliance
CE, RoHS, ISO9001
H2: FAQ
Q: What parameters does the PINH3-900 measure?
A: It measures both pH and NH4N Ammonia in water.
Q: What output signals are supported?
A: 4–20mA analog output and RS485 Modbus RTU.
Q: Is the sensor waterproof?
A: Yes, it has an IP68 rating for submerged use.
Q: What industries can use this sensor?
A: Water treatment, aquaculture, industrial water, environmental monitoring.
Q: How often does calibration be required?
A: Normally 1–3 months depending on water quality and application.
Keywords
pH sensor, NH4N Ammonia sensor, PINH3-900, Ammonia electrode, Ammonia sensor, online Ammonia sensor, RS485 Ammonia sensor, 4-20mA Ammonia probe, industrial Ammonia sensor, wastewater Ammonia sensor