- Multi-parameter Water Analyzer
- Single-Parameter Water Aalyzer
- DO Sensor
- Trace DO Sensor
- CO₂ Sensor
- COD Sensor
- EC TDS Sensor
- Salinity EC TDS Sensor
- TSS Sensor
- Turbidity Sensor
- PH Sensor
- ORP
- Ion Selective Sensor
- Ammonia Nitrogen Sensor
- Oil in Water Sensor
- Blue-Green Algae Sensor
- Chlorophyll Sensor
- Residual Chlorine Sensor
- Marine Current Sensor
0102030405
Portable Hydrogen Sulfide and CO₂ Sensor Analyzer - China Suppliers and Factory for Water Testing
Product Parameters
| Product Name | Portable Multi-parameter Water Quality Analyzer ( CO₂ + Ion ) |
| Model | LMS-PA100P |
| Range |
ION: 0 ~ 1000 mg/L CO₂: 2000 / 10000 / 50000 PPM (other ranges available) |
| Accuracy | ±5%F.S. |
| Power |
Ion Sensors: DC 9~24V CO₂: DC 5V Analyzer: Rechargeable lithium battery with 220V to DC charging adapter |
| Material | Polymer Plastic |
| Size | 220mm × 120mm × 100mm |
| Temperature |
Working Conditions: 0–50℃ Storage Temperature: -40 ~ 85℃ |
| Cable Length | 5m, can be extended according to user need |
Product Features
①
Multi-Parameter Integrated Detection
Supports 21-parameter measurement, integrating Ion Selective Detection (23 ions optional, e.g., NH₄⁺, NO₃⁻, K⁺, Ca²⁺) and dissolved CO₂ detection based on the NDIR principle, enabling simultaneous capture of multiple critical water quality indicators to meet comprehensive monitoring needs.
②
Advanced Sensing Technology
The ion sensor adopts the ionic electrode method with a power isolation design for strong data stability; the CO₂ sensor is equipped with a patented optical cavity and dual-channel detector for spatial dual-path reference compensation. Both ensure high detection accuracy (Ion: ±5%F.S., CO₂: ≤±5%F.S.).


③
Easy Integration & Maintenance
Environmentally friendly design, easily integrable into existing water quality monitoring systems. The ion sensor supports direct immersion installation; the CO₂ sensor is equipped with a detachable protective cover and convection diffusion ventilation design to accelerate gas diffusion and facilitate daily maintenance.
④
Multiple Output Modes + Robust Structure
The ion sensor outputs via RS485 (MODBUS protocol); the CO₂ sensor supports multiple output methods such as UART, IIC, and analog voltage. Both are made of polymer plastics with a waterproof design, suitable for long-term use in multiple environments such as seawater and freshwater.


⑤
Flexible Calibration + User-Friendly Operation
The ion sensor supports custom standard solution calibration (forward/reverse curves); the CO₂ sensor has a manual calibration function (MCDL pin) for on-site zero adjustment, with user-friendly operation to lower the usage threshold.
⑥
Flexible Expansion + Plug-and-Play
In addition to the core parameters of ions and CO₂, other Luminsens series sensors can be freely expanded later without complex modification, achieving plug-and-play to adapt to the dynamic upgrade of monitoring needs.


Application
🐟
Aquaculture Industry (Seawater / Freshwater)
For various aquaculture scenarios such as fish, shrimp, and shellfish, it monitors harmful ions (e.g., NH₄⁺, NO₃⁻), nutrient ions (e.g., K⁺, Ca²⁺), and dissolved CO₂ concentration in water bodies in real time, precisely regulating the water quality environment to ensure the healthy growth of aquatic organisms. Sensors can be expanded later as needed to adapt to the expansion of aquaculture scale or the addition of new monitoring parameters.
💧
Comprehensive Water Quality Monitoring Projects
Applicable to various water bodies such as surface water, groundwater, domestic sewage, and industrial wastewater, it simultaneously detects ion composition (aiding pollution source tracing and water quality category determination) and dissolved CO₂ content (reflecting water body acid-base balance and ecological metabolic status), providing comprehensive data support for water quality compliance assessment and pollution control effect verification, and can be flexibly integrated into existing monitoring systems.
🏭
Industrial Water Treatment & Environmental Quality Control
Suitable for water treatment scenarios in industries such as chemical, electronics, and food processing, as well as water quality monitoring in sewage treatment plants. It controls water salinity and pollutant ion content through ion sensors, monitors acid-base adjustment-related parameters during water treatment via CO₂ sensors, and supports the expansion of other functional sensors to build a customized water quality control system to ensure discharge compliance.
🥤
Food and Beverage Production Quality Control
Focuses on the production process of carbonated beverages (e.g., Coke, Sprite, etc.), accurately measures the dissolved CO₂ content in products to ensure consistent carbonation taste and stable product quality; meanwhile, it can monitor the mineral ion content in beverages through ion sensors to assist in controlling formula compliance, adapting to the online monitoring needs of production lines.
🔬
Scientific Research & Ecological Environment Monitoring Projects
Meets the needs of scenarios such as field research and marine/inland water ecological surveys, focusing on monitoring core ion and CO₂ parameters to support ecological environment change research. With plug-and-play expansion capability, other sensors can be flexibly added according to research directions, helping to ensure the completeness and flexibility of data collection.
More Products
| Digital RS485 Water Quality Sensors Technical Data | ||||||
| No. | Picture | Product Name | Model | Range | Accuracy | Resolution |
| 1 | ![]() |
DO sensor | LMS-DO10B | 0–20 mg/L, 0–60℃ | ±0.1–0.3 mg/L | 0.01 mg/L |
| 2 | ![]() |
DO sensor | LMS-DO10C | 0–20 mg/L, 0–60℃ | ±0.3 mg/L | 0.01 mg/L |
| 3 | ![]() |
Trace DO sensor | LMS-TDO100 | 0–2000 ppb, 0–50℃ | ±1 ppb | 1 ppb |
| 4 | ![]() |
PH sensor | LMS-PH100 | 0–14 pH | ±0.02 pH | 0.01 pH |
| 5 | ![]() |
ORP sensor | LMS-ORP100 | ±1000.0 mV | ±0.2 mV | 0.1 mV |
| 6 | ![]() |
EC/TDS sensor | LMS-TDS102 | CT: 0–9999 uS/cm; 0–100 mS/cm; TDS: 0–10000 ppm | ±2.5%FS | 1 uS/cm, 0.01 mS/cm, 1 ppm |
| 7 | ![]() |
Salinity/EC/TDS sensor | LMS-SAL104 | Conductivity: 0.1–500 mS/cm; TDS: 0–60000 ppm; Salinity: 0–500.00 ppt | ±1.5%FS | 1 uS/cm, 0.01 mS/cm, 1 ppm, 0.01 ppt |
| 8 | ![]() |
COD sensor | LMS-COD100 | COD: 0.1–1500 mg/L; TOC: 0.1–750 mg/L; BOD: 0.1–900 mg/L; Turbidity: 0.1–4000 NTU; Temp: 0–50℃ | ±5% equiv.KHP; Temp: ±0.5℃ | 0.01 mg/L equiv.KHP |
| 9 | ![]() |
TSS sensor | LMS-TSS100 | 0–50000 mg/L / 0–120000 mg/L | ±10%FS or 10 mg/L | 0.1 mg/L or 1 mg/L |
| 10 | ![]() |
Turbidity sensor | LMS-TUR10L | 0–100 NTU | ±10%FS or 0.3 NTU | 0.01 NTU |
| 11 | ![]() |
Turbidity sensor | LMS-TUR10H | 0–3000 NTU | ±10%FS or 0.3 NTU | 0.01 NTU |
| 12 | ![]() |
CO₂ sensor | LMS-CO2100 | 2000 PPM / 10000 PPM / 50000 PPM | ±5%FS | 1 ppm |
| 13 | ![]() |
Ammonia Nitrogen sensor | LMS-NH4100 | 0–1000 mg/L | ±5%FS | — |
| 14 | ![]() |
Ion Selective sensor | LMS-ION100 | 0–1000 mg/L | ±5%FS | — |
| 15 | ![]() |
Oil in Water sensor | LMS-OIL100 | 0–50 mg/L; 0–5 mg/L | ±3%FS | 0.01 ppm |
| 16 | ![]() |
Chlorophyll sensor | LMS-CHL100 | 0–500 ug/L | ±3%FS | 0.1 ug/L |
| 17 | ![]() |
Blue-Green Algae sensor | LMS-BGA100 | 0–2,000,000 cells/ml | ±3%FS | — |
| 18 | ![]() |
Residual Chlorine sensor | LMS-HCLO100 | 0–20.00 ppm | ±5%FS | 0.001 / 0.01 ppm |
| 19 | ![]() |
Marine Current sensor | LMS-Current100 | Temperature: -3℃–45℃; Velocity: 0–500 cm/s; Direction: 0–359.9° | ±0.05℃; ±1 cm/s or ±2%; ±2° | Temp: 0.001℃; Velocity: 0.1 cm/s; Direction: 0.1° |
| Water Quality Analyzer Equipment | ||||||
| No. | Picture | Product Name | Model | Size | Power | Display Output |
| 20 | ![]() |
Portable DO Analyzer | LMS-PA100 | 100mm × 204mm | <0.5W; Power supply 7.5V, 5 batteries | LCD display screen |
| 21 | ![]() |
Multi-parameter Portable Water Analyzer | LMS-PA100P | 220mm × 120mm × 100mm | Rechargeable lithium battery with 220V to DC charging adapter | LCD display screen |
| 22 | ![]() |
Multi-parameter Touch-screen Online Analyzer | LMS-OA200T | 180mm × 230mm × 100mm | AC power supply: 220 VAC | 7-inch touch screen |
Frequently Asked Questions (FAQ)
Q
What parameters can the LMS-PA100P Portable Multi-parameter Water Quality Analyzer measure simultaneously?
The LMS-PA100P supports up to 21-parameter measurement in a single device. It integrates Ion Selective Detection — with 23 selectable ion types including NH₄⁺, NO₃⁻, K⁺, and Ca²⁺ — and dissolved CO₂ detection based on the NDIR (Non-Dispersive Infrared) principle. This allows users to capture multiple critical water quality indicators simultaneously to meet comprehensive monitoring needs.
Q
What is the detection accuracy of the ion sensor and CO₂ sensor in the LMS-PA100P?
Both sensors deliver high detection accuracy. The ion sensor achieves ±5%F.S. using the ionic electrode method with power isolation design for strong data stability. The CO₂ sensor also achieves ≤±5%F.S., supported by a patented optical cavity and dual-channel detector for spatial dual-path reference compensation, ensuring reliable and consistent readings.
Q
What output interfaces does the LMS-PA100P support, and is it compatible with existing monitoring systems?
The ion sensor outputs data via RS485 using the MODBUS protocol, which is widely compatible with industrial monitoring systems. The CO₂ sensor supports multiple output methods including UART, IIC, and analog voltage. This flexibility makes the LMS-PA100P easy to integrate into existing water quality monitoring platforms without major system modifications.
Q
Can the LMS-PA100P be used in both seawater and freshwater aquaculture environments?
Yes. Both the ion sensor and CO₂ sensor are made from polymer plastics with a waterproof design, making them suitable for long-term deployment in both seawater and freshwater environments. The device is ideal for aquaculture applications involving fish, shrimp, shellfish, and other aquatic organisms, enabling real-time monitoring of harmful and nutrient ions alongside dissolved CO₂ levels.
Q
How is calibration performed on the LMS-PA100P, and is it user-friendly for field use?
The ion sensor supports custom standard solution calibration with both forward and reverse curve options, allowing users to tailor calibration to their specific application. The CO₂ sensor features a manual calibration function via the MCDL pin for on-site zero adjustment. The overall design prioritizes ease of use, lowering the technical threshold for field operators and ensuring accurate readings even in remote monitoring scenarios.
Q
Can additional sensors be added to the LMS-PA100P system in the future?
Absolutely. The LMS-PA100P is designed with flexible expansion in mind. Beyond its core ion and CO₂ measurement capabilities, other sensors from the Luminsens series — such as DO, pH, turbidity, COD, and salinity sensors — can be freely added later without complex hardware modifications. This plug-and-play expandability allows the system to adapt seamlessly to evolving monitoring requirements or scale changes.





























