SenseCAP S2105 Soil Moisture, Temperature, and EC Sensor

The SenseCAP S2105 from Seeed Studio measures soil moisture (volumetric water content), soil temperature and electrical conductivity (EC) and sends the values via LoRaWAN to a gateway within range. The probe hangs on a 5 m cable and is pushed into the soil; the housing with battery and radio stays above ground.

Like all sensors in the SenseCAP S210x series, it has an IP66 enclosure and a built-in, replaceable ER34615 battery (Li-SOCl2, 19 Ah) which, according to Seeed, lasts up to 10 years depending on the upload interval and the distance to the gateway. It is set up via Bluetooth with the SenseCraft app (formerly SenseCAP Mate); the frequency plan is also selected there, and the sensor does not transmit before that. As delivered, it joins via OTAA, so it can be registered for example in The Things Network or the SenseCAP Portal.

Recommended Accessories:

• SenseCAP M2 LoRaWAN Multi-Platform Indoor Gateway EU868
• ER34615 Battery 3.6V 19000mAh

Features:

• Soil moisture, soil temperature and electrical conductivity (EC) with one probe
• Probe on a 5 m cable
• LoRaWAN 1.0.3 Class A with the Wio-E5 module, range 2 to 10 km according to Seeed
• Setup via Bluetooth with the SenseCraft app, frequency plan and upload interval selectable
• QR code on the device for binding to the SenseCAP Portal
• ER34615 battery (Li-SOCl2, 19 Ah) replaceable
• IP66 enclosure with bracket for pole or wall

Application Examples:

• Controlling irrigation in agriculture, nurseries and gardens
• Monitoring fertilisation via soil conductivity
• Soil measurements at sites without power and Wi-Fi

Documentation:

• SenseCAP S210x: user guide (Seeed Studio, PDF)

Technical Data:

• Manufacturer: Seeed Studio
• Manufacturer SKU: 114992871
• Model: S2105
• Radio module: Wio-E5
• LoRaWAN: 1.0.3 Class A, activation OTAA (ABP via the app)
• Frequency band: EU868, other frequency plans selectable in the app
• Transmit power: max. 19 dBm
• Sensitivity: -136 dBm (SF12, 125 kHz)
• Range: 2 to 10 km depending on gateway antenna and environment (according to Seeed)
• Protection class: IP66
• Operating conditions: -40 to 85 °C, 0 to 100 % RH, non-condensing
• Battery: ER34615 3.6 V 19 Ah, Li-SOCl2, built-in, replaceable, non-rechargeable
• Battery life: up to 10 years depending on upload interval and distance to the gateway (according to Seeed)
• Soil temperature: -40 to 80 °C, ±0.5 °C at 0 to 50 °C, otherwise ±1 °C, resolution 0.1 °C
• Soil moisture (VWC): 0 to 100 %, ±3 % at 0 to 50 %, ±5 % at 50 to 100 %, resolution 0.1 % or 0.5 %
• Electrical conductivity (EC): 0 to 23 dS/m, ±5 % at 0 to 5 dS/m, ±10 % at 5 to 23 dS/m (0 to 50 °C), resolution 0.01 or 0.1 dS/m
• Probe cable length: 5 m
• Dimensions: 63 × 57 × 184.2 mm
• Weight: 405 g (according to Seeed)

Scope of Delivery:

• 1× SenseCAP S2105 Soil Moisture, Temperature and EC Sensor
• 1× bracket
• 4× self-drilling screw KA4 × 20 mm
• 1× quick start guide

Safety and Disposal Instructions

This battery is non-rechargeable and should not be charged. Do not short-circuit, open or heat. Keep out of reach of children - especially button cells can cause serious injuries if swallowed; in this case, seek medical help immediately.

Disposal: Batteries do not belong in household waste. Free return to us or any point of sale - see details Return & Disposal.