LoRaWAN temperature and humidity sensor Dragino S31B-LS

S31B-LS is a LoRaWAN temperature and humidity sensor for IoT solution. It is used to accurately measure ambient temperature and relative humidity, and then upload the data to an IoT server via the LoRaWAN wireless protocol.

The temperature and humidity sensor used in the S31B-LS is the SHT31, which has a fully calibrated, linearized and temperature-compensated digital output from Sensirion, ensuring high reliability and long-term stability. The SHT31 is encased in a waterproof, anti-condensation housing for long-term use.

The LoRa wireless technology used in the S31B-LS allows the device to send data over extremely long distances at low data rates. It provides communication with an ultra-wide range of extended spectrum and high resistance to interference, minimizing current consumption.

S31B-LS supports temperature and humidity alarm function, user can set temperature alarm for instant notification. S31B-LS supports data logging function, it can save data when there is no LoRaWAN network and transmit it when the network is restored.

S31B-LS supports BLE setup and wireless OTA update, which makes it easy to use.

The S31B-LS is powered by an 8500 mAh Li-ion battery or a solar battery, designed for up to 5 years of continuous use.Each S31B-LS is preloaded with a set of unique LoRaWAN registration keys. Register these keys with your local LoRaWAN server and it will connect automatically after power on.

Features:

LoRaWAN 1.0.3 Class A

Extremely low power consumption

Measuring range -40°C ~ 80°C

Temperature and humidity alarm

Straps: CN470/EU433/KR920/US915/EU868/AS923/AU915/IN865

Support for Bluetooth v5.1 and LoRaWAN remote setup

Support wireless firmware update via OTA

The uplink is periodically activated

Bottom channel for configuration change

Waterproof housing IP66

Solar panel + lithium-ion battery 3000 mAh

Application:

Wireless alarm and security systems

Home and building automation

Automated meter reading

Industrial monitoring and management

Long range irrigation systems, etc.

Technical characteristics:

General characteristics of direct current:

Power supply: built-in battery, 2.5V ~ 3.6V

Operating temperature: -40 ~ 85°C

Temperature sensor:

Range: from -40 to +80°C

Accuracy: ±0.2 at 0-90 °C

Resolution: 0.1°C

Long-term shift: <0.03 °C/year

Humidity sensor:

Range: 0 ~ 99.9% relative humidity

Accuracy: ± 2% RH (0 ~ 100% RH)

Resolution: 0.01% relative humidity

Long-term drift: <0.25% RH/yr

LoRa specification:Frequency range Band 1 (HF): 862 ~ 1020 MHz Max. +22 dBm constant RF output vs

Receiver sensitivity: up to -139 dBm.

Excellent blocking immunity Battery:

Non-rechargeable Li/SOCI2 battery

Capacity: 8500 mAh

Self-discharge: <1% / year at 25°C

Maximum continuous current: 130 mA

Maximum boost current: 2A, 1 second

Energy consumption:

Sleep mode: 5 µA at 3.3 V

LoRa transmission mode: 125 mA at 20 dBm, 82 mA at 14 dBm

The package includes:

1 x S31B-LS LoRaWAN temperature and humidity sensor

Dimensions and weight: The size of the device: 120 * 55 * 200 mm

Weight of the device: 370 g

Part number: S31B-LS-XX

XX : Default frequency range

EU433: The default frequency band is EU433

CN470: CN470 default frequency band

EU868: Standard EU868 frequency range

IN865: Standard frequency range of IN865

KR920: The standard frequency range of the KR920

AS923: AS923 standard frequency range

AU915: Standard AU915 frequency range

US915: Standard US915 frequency range

KZ865: Standard KZ865 frequency range.