Environmental

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PM2.5/PM10 Air Particle Sensor, RS485/WiFi Output

SUCH-AQS-PM2510
● Test PM2.5/PM10/CO2/O3, range 0~1000ug/m3, resolution 1ug/m3 ● RS485/WiFi output signal selectable ● Supply voltage 10-30V DC ● Dense openings, ABS flame retardant material
$96.87

Smart Tipping Bucket Rainfall Sensor, Stainless Steel

SUCH-RS-YXM
● Supports reed switch pulses or RS485 output ● 0.2 mm resolution for accurate rainfall recording ● Handles up to 4 mm/min rainfall intensity ● 200 mm collection port with 40°~45° funnel angle
$427.93

Soil EC Sensor, 0–5000/ 10000/ 20000μS/cm

SUCH-SS-ECT
● Conductivity range: 0–5000/10000/20000μS/cm ● Moisture accuracy: ±3% ● Communication method: RS485 ● EC accuracy: 0–10000μs/cm: ±3%; 10000–20000μs/cm: ±5%
$135.77

WIFI Soil Moisture Sensor with Temperature, IP66

SUCH-SMS-10Z
● Soil temp and moisture measurement, WiFi connected app control ● Moisture accuracy: 0~50% (±3%), 50~100% (±5%) ● Moisture measurement range: 0~100%RH ● Protection class IP66, temperature accuracy ±1°C
$89.32

Digital Wireless Rain Sensor with Indoor/Outdoor Temperature

SUCH-RS-0206
● Indoor/outdoor temperature and humidity, supports °C/°F switching ● Rainfall resolution: 0.3mm (<1000mm) /1mm (≥1000mm) ● Measuring range is 0 to 9999 mm ● Humidity measurement range: 10%~99%RH ● Indoor temperature range: 0°C~60°C, outdoor temperature range: -40°C~60°C
$169.52

Infrared Particulate Matter Sensor, PM2.5

SUCH-DS-IPM
● PM2.5 detection accuracy ±15μg/m³ ● Particle size range 1~10μm , concentration range 0~1000μg/m³ ● Response time 8 seconds, data refresh frequency 1 second ● Small size, working temperature -20 ~ 75 ℃
$48.66

Outdoor Air Quality Sensor, Analog/WiFi Output

SUCH-AQS-OUTD
● RS485/4-20mA/0-5V/0-10V/Wifi/4G output ● Wall-mounted, temperature -40~+80°C, humidity 0%RH-100%RH ● PM1/PM2.5/PM10 test range: 0~1000ug/m3 ● Construction plant, warehouse storage
$99.87

Solar Powered Soil Moisture Sensor, 0~100%RH

SUCH-SMS-882A
● Solar powered, temperature and moisture detection ● Temperature detection range: -10~60°C (14°F ~ 140°F) ● Moisture detection range: 0~100%RH (Non-condensing) ● Wireless distance: 50M
$108.56

3 in 1 Plant Soil Moisture Sensor, Temp/ Illuminance

SUCH-SMS-860B
● 3-in-1: Moisture, illumination, temperature ● Moisture: 0 -100%RH ● Illuminance: 0-100000LuX ● Temperature: -10°C~80°C
$103.89

Laser Particulate Matter Sensor, 0.3-10μm

SUCH-DS-LPM
● Real-time detection, detection concentration 0.3μm to 10μm ● Fast response time, data refresh rate 1s ● Full metal shielded enclosure, operating temperature -10~+50℃ ● Equipped with a variety of different digital output interfaces
$53.17

Outdoor Air Pollution Sensor, Louvered Box

SUCH-AQS-LB
● Louvered box, RS485/4-20mA/0-5V/0-10V/Wifi output ● Resistant to rain and snow, anti-aging ● Temperature -40~+80°C, humidity 0%RH-100%RH ● PM1/PM2.5/PM10 test range: 0~1000ug/m3 ● For weather station, ambient weather
$124.56

Radar Rain Gauge Sensor, Weather Instrument, 0-200mm/h

SUCH-RS-YL4
● Measurement range 0~200 mm/h ● Resolution 0.1 mm, precise rainfall data collection ● Supports RS485/RS232 communication interface ● Power consumption less than 2W
$1,151.23

Accurate Piezoelectric Rain Sensor, 0-4mm/min, RS485

SUCH-RS-YD1L
● Measurement accuracy ≤±4%, 0.01 mm resolution ● All-weather operation, temperature range -40 to +85℃ ● RS485 output and communication protocol MODBUS ● Ultra-low power consumption (only 0.12W) ● Automatically filters out impact, vibration, and dust interference
$793.25

Air Quality Sensor for Home, TVOC/CO2/CH2O

SUCH-AQS-HOME
● RS485 output with digital screen ● Test TVOC/CO2/CH2O ● Continuous monitoring 24h ● Ceiling/wall mounting
$93.74

Dust Sensor Module, PM2.5/Temperature/Humidity/VOC/CO2

SUCH-DS-AEM1000
● Detect temperature and humidity, VOC, CO2 and PM2.5 ● Operating voltage 5.0V DC, operating current 140mA ● Output method RS485/UART ● Operating temperature 10~50℃, operating humidity 5~80%RH
$108.92

Smart Soil Moisture Sensor with APP Control

SUCH-SMS-1840
● Measure moisture & temperature: 0~100%RH, -20°C~60°C ● Moisture accuracy: 0-50% (±3%), 50~100% (±5%) ● Temperature accuracy: ±1°C ● APP data response time: 60s
$96.76

Automatic Weighing Bucket Rain Gauge Sensor, 0-1000mm

SUCH-RS-SN3008
● Resolution of 0.1 mm, high precision weighing ● RS485 or pulse output, easy system integration ● 12V DC power supply, power consumption 0.15W ● Temperature resistance of the transmitter element -35~65℃
$9,539.12

Digital Soil Moisture Sensor, Temperature/pH

SUCH-SMS-S07
● Soil moisture, soil temperature, soil pH ● Temperature & accuracy: -10°C~90°C (14°F~194°F), ± 1% ● Moisture& accuracy: 0%~90%, ± 10% ● pH& accuracy: 3-9, ± 0.2
$79.41

Dust Detection Sensor, PM0.3-PM10

SUCH-DS-DScD
● Measurement of dust particle range PM0.3~PM10 ● Output concentration 3~800μg/m3, output mode PWM ● Operating voltage 5V±0.2V, output accuracy less than 15μg/m3 ● Operating temperature -20℃~+75℃, operating humidity 0-95%RH
$72.76

Indoor Air Quality Sensor, Temp & Hum/O2/TVOC/CO2/CH2O

SUCH-AQS-IND
● 4-20mA output, working DC 10V~30V ● Operating Current <200mA ● Test Temp & Hum/O2/TVOC/CO2/CH2O ● ABS flame retardant housing
$107.99

In today's rapidly developing landscape of industrial automation, smart cities, and environmental protection, environmental sensors have become a critical component of information sensing systems. Whether detecting harmful gases in the air or monitoring soil moisture in real time, environmental sensors leverage their high sensitivity and rapid response capabilities to be widely applied in various ecological monitoring, agricultural management, smart building, and public safety projects. With the global focus on sustainable development and low-carbon technologies, the market demand for high-performance environmental monitoring equipment continues to grow.

Environmental sensors operate on a variety of principles, typically based on the physical, chemical, or biological characteristics of the measured substance. Take air quality sensors as an example; their core principle often relies on electrochemical or semiconductor technology. When the sensitive material on the sensor's surface reacts with specific gases in the air (such as CO₂, NO₂, O₃, or TVOC), the charge changes, converting into an electrical signal that is output to the control system for analysis. Similarly, soil moisture sensors may use a capacitive principle, measuring changes in soil dielectric constant to determine moisture content.

Types of Environmental Sensors

Environmental sensors come in a wide variety of types, which can be broadly categorized based on the monitored object into gas sensors, soil sensors, moisture sensors, and meteorological sensors, among others.

Gas sensors include devices that detect various target substances such as carbon dioxide, flammable gases, ozone, carbon monoxide, ammonia, and hydrogen sulfide, and are suitable for industrial safety, building ventilation systems, and urban air quality monitoring.

Humidity sensors are an indispensable component of environmental monitoring systems, used to detect relative humidity (RH) or absolute humidity in air or enclosed spaces. Their operating principles typically rely on capacitive or resistive detection. Humidity monitoring plays an extremely important role in applications such as HVAC systems, green buildings, warehousing and logistics, and electronics manufacturing facilities.

Soil sensors are more suitable for smart agriculture and water-saving irrigation systems, enabling precise monitoring of moisture, temperature, and conductivity changes in fields. Weather sensors, such as wind speed, wind direction, temperature/humidity, and atmospheric pressure sensors, provide data support for smart weather stations and wind farms.

Environmental sensor types


Application of Environmental Sensors

In practical applications, environmental sensors have already penetrated multiple critical fields. Urban air quality monitoring systems utilize multi-sensor grid layouts to collect real-time pollution data and drive policy adjustments. Agricultural irrigation systems use soil moisture and temperature sensors to implement an on-demand water supply, conserving resources while ensuring crop growth.

Industrial enterprises rely on VOC or toxic gas sensors to ensure production environment safety and prevent leakage accidents. In smart buildings, carbon dioxide and PM2.5 sensors are often integrated with fresh air systems to regulate ventilation efficiency and optimize energy use. Notably, with the development of IoT technology, an increasing number of environmental sensors now support wireless transmission and remote monitoring, enhancing the flexibility and real-time nature of data collection.

Environmental sensor of agricultural irrigation

Agricultural Irrigation

Environmental sensor of industrial enterprises

Industrial Enterprises

Environmental sensor of smart buildings

Smart Buildings

Environmental sensor of city air

Urban Air

SUCH, as a technology-driven company specializing in the R&D and production of industrial-grade sensors, continues to launch environmental monitoring products covering multiple fields such as gas, soil, humidity, and meteorology. The products not only offer a comprehensive range of options, including mainstream signal interfaces such as RS485, 4-20mA, and 0-5V, but also excel in terms of anti-interference performance, weather resistance, and measurement accuracy. They are widely applied in government environmental projects, research platforms, and automated systems.

For example, SUCH's multi-functional air quality sensor can simultaneously monitor multiple indicators such as CO₂, PM2.5, and TVOC, and achieve efficient integration with PLC systems via the Modbus protocol. Its soil sensor series, featuring an IP68 protection rating and low-power design, is ideal for long-term outdoor deployment.

In summary, environmental sensors are not only the sensory entry points for building digital ecosystems but are also increasingly becoming crucial decision-support tools. From data collection to intelligent integration, they are driving industries toward a greener, smarter future. Selecting high-quality, easy-to-integrate environmental sensor products is particularly critical for ensuring the stability and long-term operation of monitoring systems.