Seeed Studio SenseCAP S2120 8in1 LoRaWAN Weather Sensor is a professional, compact solution for environmental monitoring across agriculture, smart cities, renewable energy, and industrial applications. This advanced Weather Sensor integrates eight essential parametersair temperature, relative humidity, barometric pressure, wind speed, wind direction, rainfall, solar radiation, and UV indexinto one device, delivering high accuracy and longterm stability.

Built by Seeed Studio, the SenseCAP S2120 Weather Sensor is designed with IP66 protection, making it waterproof, dustproof, and highly durable for outdoor deployments. Its industrialgrade design ensures reliable performance in harsh environments, with a wide operating temperature range from 40C to +85C.

The SenseCAP S2120 Weather Sensor supports LoRaWAN connectivity, enabling longrange, lowpower data transmission. This makes it ideal for IoT deployments where sensor data needs to be transmitted to public LoRaWAN networks (such as Helium or TTN) or private servers. By leveraging LoRaWAN technology, the Seeed Studio SenseCAP S2120 Weather Sensor ensures scalable, costeffective, and efficient monitoring solutions.

With support for RS485 (MODBUSRTU) and SDI12 protocols, the SenseCAP S2120 Weather Sensor integrates seamlessly with industrial data loggers, PLCs, and cloud platforms, making it a versatile choice for modern environmental monitoring systems.

Features

• 8-in-1 Weather Sensor: The Seeed Studio SenseCAP S2120 Weather Sensor collects air temperature, humidity, wind speed/direction, rainfall intensity, light intensity, UV index, and barometric pressure data in one compact device and uploads them via LoRaWAN for long-range, low-power transmission.
• Bluetooth Configuration in 1 Minute & Remote Management: The SenseCAP S2120 Weather Sensor allows simple configuration with just a few clicks. It supports remote monitoring and management of real-time and historical data via the SenseCAP Mate App (Download here: iOS; Google Play; App Center) and the SenseCAP Portal, ensuring seamless integration with LoRaWAN networks.
• Ultra-low Power Consumption, Replaceable Battery & Expandable Capacity: Powered by a 0.5W solar panel and 3 standard 1.5V AA batteries, the Seeed Studio SenseCAP S2120 Weather Sensor offers up to 2 years of service life. It also supports an external battery compartment with six batteries to double the service life, making it ideal for long-term LoRaWAN deployments.
• Reliable Performance: The SenseCAP S2120 Weather Sensor is designed for harsh outdoor environments, including high UV exposure, heavy rain, and dusty conditions. Its IP66-rated enclosure ensures durability and stability in challenging scenarios.
• One-stop Deployment & Flexible Layout: Accessories such as poles and mounting stands are included, enabling quick installation of the Seeed Studio SenseCAP S2120 Weather Sensor at almost any location. This makes deployment fast, flexible, and efficient for LoRaWAN-based IoT projects.

Specification

Air Temperature	Rainfall Intensity
Range	-40.0 ~ 80.0	Range	0 ~ 450 mm/h
Accuracy	0.5 (0~80); 0.6 (-40~0)	Accuracy	7%
Resolution	0.1	Resolution	0.254 mm/h
Air Humidity	General Parameters
Range	1~99 %RH	Product Model	S2120
Accuracy	3% (1~90%RH); 4% (90~99%RH)	Microcontroller	WM-LR1110
Resolution	1%RH	Support Protocol	LoRaWAN v1.0.3 Class A
Barometric Pressure	Built-in Bluetooth	App Tool to change parameters
Range	540 ~ 1100hPa	LoRaWAN Channel Plan	IN865/EU868/US915/AU915/AS923/KR920/RU864 *
Accuracy	5hPa (700~1100hPa); 8hPa (540~699hPa)	GPS	Need to customize
Resolution	1hPa	LoRaWAN Max Transmitted Power	21dBm
Wind Speed	LoRa Sensitivity	-141dBm@SF12 BW=125KHz
Range	0~50.0m/s	Communication Distance	2 to 10km (depending on gateway antenna and environments)
Accuracy	0.5m/s (<5m/s ); 10% (>5m/s)	Protection grade	Suitable for outdoor scenes
Resolution	0.1 m/s	Operating Temperature	-20 to +60 C (Alkaline battery); -40 to +60 C (Lithium battery)
Wind Direction	Operating Humidity	0~99%RH
Range	0~360	Device Weight	1.5kg
Accuracy	8	Certification	CE / FCC / RoHS
Resolution	1	Power Supply
Light Intensity	Solar Panel	0.5W (When there is sunlight, solar panels will be used first, otherwise batteries will be used)
Range	0 ~ 200000 lux	Battery Type**	AA size, 1.5V batteries (alkaline or non-rechargeable Lithium battery), batteries not included
Accuracy	5%	Number of Battery	Option1: built-in battery box: 3 * AA battery; Option2: external battery box: 6 * AA battery (batteries not included)
Resolution	1 lux	Battery Life	2 years (Solar Panel + 6*AA Battery, 1h/uplink)
UV Index	External Battery Box	Support 6 * AA 1.5V batteries (not included); Cable: 2m; IP Rating: IPX6
Range	0 ~ 16.0	* A device supports different frequencies and can be configured via the Bluetooth App. ** The battery life varies from data upload interval and distance between gateways. *** We have updated the battery life table, which should provide you with a better estimate of the actual battery life of your device.
Accuracy	10%
Resolution	0.1

LoRaWAN Frequency

Note: No Frequency limitation. Weather stations can be switched to other frequency plans at any time.

S2120 is manufactured to support the universal frequency plan from 863MHz ~928MHz in one SKU. That is to say, it can support the frequency plans below:

Frequency Plan	Common Name	Sub-band
EU863-870	EU868	___
US902-928	US915	Sub-band from 1 to 8
AU915-928	AU915	Sub-band from 1 to 8
AS923	AS923	AS923_1, AS923_2, AS923_3, AS923_4
IN865-867	IN865	___
KR920-923	KR920	___
RU864-867	RU864	___

The frequency plan setting is none by default and it will not transmit RF signal until it has been set by App via Bluetooth at the first power-up. And it can be changed to other frequency plans at any time.

Applications

• Backyard and Garden: Use the Seeed Studio SenseCAP S2120 Weather Sensor to measure air temperature, humidity, rainfall intensity, and UV index in your backyard or garden. Protect your family with accurate localized data transmitted via LoRaWAN.
• Smart Agriculture: Farmers can deploy the SenseCAP S2120 Weather Sensor to obtain real-time climate data, including wind speed, precipitation, and particulate matter. With Seeed Studio technology and LoRaWAN connectivity, they can take scientific management measures to improve agricultural productivity and sustainability.
• Meteorology: The Seeed Studio SenseCAP S2120 Weather Sensor supports professional meteorological applications. It reflects abnormal weather changes in fields such as traffic and transportation, providing real-time scientific data for traffic management departments. With LoRaWAN transmission, data can be shared efficiently across networks.
• Urban Weather: The SenseCAP S2120 Weather Sensor delivers real-time weather data for urban squares, parks, scenic spots, golf courses, and other public areas. Built by Seeed Studio, this compact device ensures reliable monitoring and easy deployment with LoRaWAN connectivity.

Field Deployment

Photo Credits: Ted Urbaniak, Mapping Network, Nibiaa

Note

1. SenseCAP provides a GPS function customization service for the WM-LR1110 module.

2. This isNOTthe WXM weather station.

SenseCAP ONE Series Comparison

Seeed Studio SenseCAP S200 Wind Speed and Direction Sensor

SenseCAP S500 V2 5-in-1 Compact Weather Station

SenseCAP S700 V2 7-in-1 Compact Weather Sensor

SenseCAP S700-A 7-in-1 Compact Weather Station

SenseCAP S700-B 7-in-1 Compact Weather Station

SenseCAP S700-C 7-in-1 Compact Weather Station

SenseCAP S800 8-in-1 Compact Weather Sensor

SenseCAP S1000 10-in-1 Compact Weather Sensor

SenseCAP S1000 V2 10-in-1 Compact Weather Sensor

SenseCAP S2120 8-in-1 LoRaWAN Weather Sensor

SenseCAP ONE Mounting Bracket Flange

User Guide

Scan-and-Play Simplicity, Easy Configuration via Bluetooth in Just 1 min

Built-in Bluetooth avoids time-consuming configuration works to bring no code experience to individuals with less or no technical background to quickly get started with weather detection.

Powerful SenseCAP Mate App: data visualization and remote device management

Compatibility with Multiple Networks and Platforms: easily integrates with existing worldwide LoRaWAN networks

How to Select Gateway:

LoRaWAN network coverage is required when using sensors, there are two LoRaWAN network options.

Option 1: Sensors work in areas covered by Helium Network (Check on Helium Explorer).

Option 2: Sensors work in a standard LoRaWAN network, like The Things Network, Loriot, Chirpstack, etc (Check out theSenseCAP Gateway series).

We highly recommend that you use our SenseCAP M2 Multi-Platform LoRaWAN Gateway, which is a standard LoRaWAN gateway that supports connection to different network servers, its cost-effectiveness becomes a standout advantage, especially when building your private LoRaWAN network.

Documents

SenseCAP S2120 LoRaWAN Sensor Catalogue

S2120 Weather Sensor User Guide

SenseCAP Weather Sensor Catalogue

Battery Life Prediction Table

SenseCAP ONE Document Center

Certification

HSCODE	9031809090
USHSCODE	9031808085
UPC
EUHSCODE	9030900000
COO	CHINA

Part List