Portable Water Quality Detector: Built in high-capacity rechargeable lithium battery, convenient for water quality testing in the wild at any time. [Model: TW-SS07, IoT integrated device, Tianwei Environment supports customized services]In scenarios such as field water quality research, ecological monitoring, and emergency pollution investigation, the stability of power supply often becomes a key factor restricting detection efficiency. Portable water quality detectors, with built-in high-capacity rechargeable lithium batteries, have successfully broken this limitation and provided long-lasting and reliable energy security for outdoor operations. This battery uses high-density lithium-ion cells with low self discharge rate and wide temperature range operating characteristics, which can maintain stable output even in low or high temperature environments; Combined with the intelligent power management system, the power consumption can be automatically adjusted according to the device's operating status, extending the single charge battery life. When the detector is in standby mode, the system automatically shuts down non essential modules to reduce energy consumption; When starting the detection, quickly wake up the sensor and data processing unit to ensure immediate response. In addition, the battery supports fast charging technology, which can replenish most of the power in a short period of time. With a universal charging interface design, it can be flexibly recharged through car chargers, solar panels, or mobile power sources, truly achieving "on-demand charging, on-demand testing", greatly improving the flexibility and continuity of field water quality testing.

1、 Product Introduction
The SS07 portable multi parameter water quality analyzer is an electrode based water quality analysis instrument that uses fully digital electrodes to detect water quality, water temperature, conductivity, and other parameters PH、 Ammonia nitrogen, dissolved oxygen cod、 Turbidity parameter. The instrument is equipped with a self-developed FTIOT operating system, which is easy to operate, stable in performance, accurate in measurement, and has a wide detection range. It is also equipped with a high-capacity rechargeable lithium battery, making it convenient for users to conduct water quality testing in the field or laboratory at any time.
2、 Host parameters
| Charging input voltage |
4.5V-5.5V |
| charging current |
<2A |
| screen size |
3.5 inches |
| screen resolution |
480*800 ☆ |
| Screen interface |
MIPI DSI ☆ |
| USB port |
2 (Supports external mouse, keyboard, 4G, etc.) ☆ |
| Type-C |
1 (Supports external mouse, keyboard, 4G, etc.) ☆ |
| RS485 |
2 (Supports Modbus, JSON, ASC inputs, etc.) |
| External sensor supply voltage |
12V |
| External sensor power supply current |
1A |
| operating system |
Ftiot (based on Linux-5.4) ☆ |
| CPU |
2*Cotex-A7,650Mhz ☆ |
| RAM |
512M DDR3 ☆ |
| Flash |
8G-64G |
| OpenGL |
ES 2.0 ☆ |
| Wifi |
support |
| 4G |
optional |
| button |
support |
| Capacitive touch screen |
support |
| software architecture |
B/S ☆ |
| Web access |
Support ☆ |
| MTP mode |
Support ☆ |
| Multi terminal login |
Support ☆ |
| IPv6 |
Support ☆ |
| Sensor communication method |
RS485、TCP、UDP、Http ☆ |
| Data forwarding method |
RS485、TCP、UDP、Http ☆ |
| Remote SSH |
Support ☆ |
| remote debugging |
Support ☆ |
3、 Sensor parameters and configuration
| serial number |
name |
measurement range |
principle |
measurement accuracy |
resolution |
configuration |
remark |
| 1 |
temperature |
0~50℃ |
High precision digital sensor |
±0.3℃ |
0.01℃ |
✔ |
|
| 2 |
pH |
0~14(ph) |
Electrochemistry (salt bridge) |
± 0.1PH |
0.01 |
✔ |
|
| 3 |
ORP |
-1500mv~1500mv |
Electrochemistry (salt bridge) |
± 6mv |
1mV |
|
|
| 4 |
conductivity |
0~5000uS/cm,0~10000uS/cm |
Contact electrode method |
± 1.5% |
1uS/cm |
✔ |
|
| 5 |
TDS |
0-10000ppm 0-200ppt |
Contact electrode method |
±1.5%; ±0.1°C |
1ppm 0.01ppt |
|
|
| 6 |
salinity |
0-10000ppm 0-200ppt |
Contact electrode method |
±1.5%; ±0.1°C |
1ppm 0.01ppt |
|
|
| 7 |
sludge concentration |
0~20.000g/L |
scattered light method |
± 5% (depending on sludge homogeneity) |
0.001g/L |
|
|
| 8 |
turbidity |
0~40NTU (low turbidity) |
scattered light method |
± 1% |
0.1NTU |
|
Optional |
| 0~1000NTU (medium turbidity) |
scattered light method |
± 1% |
|
| 0~3000NTU (high turbidity) |
scattered light method |
± 1% |
✔ |
| 9 |
dissolved oxygen |
0~20mg/L |
Fluorescence lifetime method |
± 2% |
0.01mg/L |
✔ |
|
| 10 |
ammonia nitrogen |
0-1000.00mg/L (default) 0-1000mg/l/(customizable) |
Ion selective electrode method |
10% of the reading, ± 0.5 ℃ |
0.01mg |
✔ |
Range optional |
| 11 |
suspended solids |
0~2000mg/L |
scattered light method |
± 5% (depending on sludge homogeneity) |
0.1mg/L |
|
|
| 12 |
residual chlorine |
0~5.00 mg/L |
Ion selective electrode method |
± 5% of the reading |
0.01mg/L |
|
The accuracy is highest when the flow rate is 0.42m/s-0.85m/s |
| 13 |
chloride ion |
0-3500.0mg/L |
Ion selective electrode method |
±5% |
0.1mg/L |
|
|
| 14 |
Total Hardness |
0~1000.0mg/L |
Ion selective electrode method |
± 10% of the reading |
0.1mg/L |
|
|
| 15 |
cod |
0~1000mg/ L |
UV254 absorption method |
±5% |
0.1mg/L |
✔ |
COD and chlorophyll are equipped with automatic cleaners to prevent biological attachment and avoid light window pollution, ensuring long-term monitoring stability; Automatic cleaning time and frequency can be set, with a power consumption of 0.7W |
| 16 |
chlorophyll |
0~400ug/L |
fluorescence method |
R2>0.999 |
0.01ug/L |
|