The Dragino S31-CB is NB-IoT/LTE-M Temperature and Humidity Sensor for Internet of Things solution. It is used to measure the surrounding environment temperature and relative air humidity precisely, and then upload to IoT server via NB-IoT or CAT-M1 network.

The temperature & humidity sensor used in S31-CB is SHT31, which is fully calibrated, linearized, and temperature compensated digital output from Sensirion, it provides a strong reliability and long-term stability. The SHT31 is fixed in a waterproof anti-condensation casing for long term use.

S31-CB supports different uplink methods include MQTT, MQTTs, TCP, UDP or CoAP for different application requirement, and support uplinks to various IoT Servers.

S31-CB is powered by 8500mAh Li-SOCI2 battery, It is designed for long term use up to several years. (Real-world battery life depends on the use environment, update period and uplink method. Please check related Power Analyze report).

S31-CB has the optional build-in SIM card and default IoT server connection version. Which make it works with simple configure.

Features:

• For -CB Bands: B1/B2/B3/B4/B5/B8/B12/B13/B18/B19/B20/B25/B28/B66/B71/B85
• CAT-M1 / LTE-M Bands: B1/B2/B3/B4/B5/B8/B12/B13/B18/B19/B20/B25/B26/B27/B28/B66/B85
• Ultra Low Power Consumption
• Monitor environment temperature
• Monitor relative air humidity
• Temperature & Humidity alarm
• Multiply Sampling and one uplink
• 8500mAh Battery for long term use
• 3 meters sensor cable ( for S31-CB)
• Support BLE remote configure and update firmware
• Uplink on periodically
• IP66 Waterproof Enclosure
• AT Commands to change parameters
• Uplink via MQTT, MQTTs, TCP, UDP or CoAP

Applications:

• Smart Buildings & Home Automation
• Logistics and Supply Chain Management
• Smart Agriculture
• Smart Cities

Specifications:

Common DC Characteristics:

• Supply Voltage: 2.6v ~ 3.6v
• Operating Temperature: -40 ~ 85°C

Temperature Sensor:

• Range: -40 to + 80°C
• Accurancy: ±0.2 @ 0-90 °C
• Resolution: 0.01°C
• Long Term Shift: <0.03 °C/yr

Humidity Sensor:

• Range: 0 ~ 99.9% RH
• Accurancy: ± 2%RH(0 ~ 100%RH)
• Resolution: 0.01% RH

• Long Term Shift: <0.25 %RH/yr NB-IoT Spec:

• NB-IoT Module: BC660K-GL

Support Bands:

• B1 @H-FDD: 2100MHz
• B2 @H-FDD: 1900MHz
• B3 @H-FDD: 1800MHz
• B4 @H-FDD: 2100MHz
• B5 @H-FDD: 860MHz
• B8 @H-FDD: 900MHz
• B12 @H-FDD: 720MHz
• B13 @H-FDD: 740MHz
• B17 @H-FDD: 730MHz
• B18 @H-FDD: 870MHz
• B19 @H-FDD: 870MHz
• B20 @H-FDD: 790MHz
• B25 @H-FDD: 1900MHz
• B28 @H-FDD: 750MHz
• B66 @H-FDD: 2000MHz
• B70 @H-FDD: 2000MHz

• B85 @H-FDD: 700MHz Battery:

• Li/SOCI2 un-chargeable battery

• Capacity: 8500mAh
• Self-Discharge: <1% / Year @ 25°C
• Max continuously current: 130mA

• Max boost current: 2A, 1 second Power Consumption:

• STOP Mode: 14uA @ 3.3v

• Max transmit power: 350mA@3.3v

Documents: - DataSheet, Document Base - User Manual -- Online Latest - Shared Folder for all Dragino Products

Part Number : S31-CB-XX

XX:

• GE: General version ( Exclude SIM card)
• 1T: with 1NCE* 10 years 500MB SIM card and Pre-configure to ThingsEye server