The Seeed Studio SenseCAP S2106 LoRaWAN pH Sensor is a battery-powered IP66 wireless device measuring 0~14 pH with ±0.1 accuracy. Equipped with built-in Bluetooth and APP service for OTA configuration and remote management, this pH Sensor is ideal for smart farming, hydroponics, and environmental monitoring. The S2106 combines durability, reliability, and seamless LoRaWAN connectivity for modern IoT solutions. Feature Compatible with Worldwide LoRaWAN Networks: Works with multiple LoRaWAN gateways to enable fast connection. Supports universal frequency plan (863MHz ~928MHz). Perfect for Seeed Studio SenseCAP S2106 pH Sensor deployments. Long Range & Battery Powered: Transmission range of 2km in urban and 10km line-of-sight. Powered by replaceable ER34615 Li-SOCl2 battery with up to 10 years life. Reliable S2106 pH Sensor operation for IoT. Designed to Use in Harsh Environments: Operating temperature -40℃ ~ 85℃, IP66-rated enclosure. Suitable for outdoor use, UV exposure, heavy rain, and dusty conditions. Built tough by Seeed Studio SenseCAP. Simple Configuration: SenseCAP Mate APP provides a no-code experience, enabling users to finish setup in 4 steps. Easy deployment for LoRaWAN pH Sensor networks. High-performance Guarantee The SenseCAP S2106 LoRaWAN pH Sensor is tested to ensure performance and durability under harsh outdoor conditions. Seeed Studio conducted 6 reliability tests before release, guaranteeing the S2106 meets specifications and performs perfectly in extreme environments. High-Low Temperature Test – ensures performance under adverse temperature conditions. Conformance Test – verifies consistent values across multiple pH Sensors. Waterproof Test – confirms IP66 protection. Freezing Test – validates durability in extreme cold. Long-Range Communication Test – checks packet stability under long-distance LoRaWAN transmission. R&D and Production Test – ensures high pass rate under factory conditions. Optimized for IoT The Seeed Studio SenseCAP S2106 LoRaWAN pH Sensor is the ultimate choice for smart farming, hydroponics, and environmental monitoring. With robust IP66 design, Bluetooth OTA, and long-range LoRaWAN connectivity, this pH Sensor delivers reliable data and simplifies deployment for engineers, makers, and IoT enthusiasts. Specification pH Range 0 to 14 pH Accuracy ±0.1 pH Resolution 0.01 pH Temperature (Built-in junction box*) Range -40 to 80 ℃ Accuracy ±0.5 ℃ Resolution 0.1 ℃ General Parameters Product Model S2106 Microcontroller Wio-E5 Support Protocol LoRaWAN v1.0.3 Class A Built-in Bluetooth App Tool to change parameters LoRaWAN Channel Plan IN865/EU868/US915/AU915/ AS923/KR920/RU864 ** Max Transmitted Power 19dBm Sensitivity -136dBm@SF12 BW=125KHz Communication Distance 2 to 10 km (depending on gateway antenna and environments IP Rating IP66(LoRa DTU); IP65()Junction box); IP68(Sensor probe) Operating Temperature -40 to +85 °C Operating Humidity 0 to 100 %RH (non-condensing) Device Weight 600g Cable Length 2 meters (DTU to junction box); 5 meters (Junction box to probe) Maintenance and calibration The probe needs to be cleaned every 3 to 6 months and calibrated every 6 to 12 months Certification CE / FCC / RoHS Battery (Contained in equipment) Battery Life Up to 10 years*** Battery Capacity 19Ah (non-rechargeable) Battery Type Standard D-size SOCl2 Battery Note: The temperature sensor in the junction box cannot measure the temperature of water or soil. Please keep this in mind when deploying the Seeed Studio SenseCAP S2106 LoRaWAN pH Sensor in smart farming or hydroponics projects. * Every S2106 SenseCAP device can support 7 LoRaWAN frequency plans, ensuring wide compatibility for IoT and pH Sensor applications. ** This wireless LoRaWAN pH Sensor from Seeed Studio supports up to 10 years of battery life. Actual performance depends on data upload interval, payload size, and gateway distance. *** We have updated the battery life table, which provides a better estimate of the actual battery life of your SenseCAP S2106 LoRaWAN pH Sensor. We recommend referring to this table when making decisions related to device longevity. LoRaWAN Frequency Note: No Frequency Limitation – The SenseCAP S2106 pH Sensor can be switched to other LoRaWAN frequency plans at any time, offering maximum flexibility for IoT deployments. S2106 Devices from Seeed Studio SenseCAP are manufactured to support the universal LoRaWAN frequency plan from 863MHz ~928MHz in one SKU. This means every single pH Sensor can seamlessly operate across multiple regions and networks. 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 ___ Note: The frequency plan setting is none by default and the device will not transmit RF signals until configured via Bluetooth at first power-up. It can be switched to other LoRaWAN frequency plans anytime, offering flexibility for SenseCAP S2106 pH Sensor deployments. Hardware Overview The SenseCAP S2106 LoRaWAN pH Sensor by Seeed Studio measures pH levels in the range of 0~14. It detects hydrogen-ion activity in water-based solutions, indicating acidity or alkalinity. Monitoring soil conditions and water quality are key applications. Optimized for OTA with built-in Bluetooth, the S2106 enables quick setup and updates. Thanks to LoRaWAN connectivity and an IP66 enclosure, it ensures stability, reliability, and long-range transmission with low power consumption. Battery-powered design reduces deployment complexity and allows installation within minutes. SenseCAP S210X is a series of wireless LoRaWAN sensors designed for industrial and environmental monitoring. Transmission range: up to 2km in urban areas and 10km line-of-sight. Combined with a replaceable battery supporting up to 10 years of use and an industrial-grade IP66 enclosure, the S2106 pH Sensor is built for harsh environments (-40 ~ 85℃). Application Sewage Treatment, Swimming Pools & Spas, Poultry Farms, Livestock Sheds, Hydroponics, River Monitoring, Scientific Experiments SenseCAP S210X is fully compatible with LoRaWAN V1.0.3 protocol and works seamlessly with Gateway - LoRaWAN Device - SenseCAP. LoRaWAN gateways provide the required network coverage. The S2106 pH Sensor can connect to multiple gateways, while Seeed Studio offers optimized solutions for a seamless user experience. Helium Network: Sensors operate in areas covered by Helium (check on Helium Explorer). LoRaWAN Networks: Compatible with The Things Network, Loriot, Chirpstack, and more. We recommend the SenseCAP M2 Multi-Platform LoRaWAN Gateway from Seeed Studio. At just $99, it’s a cost-effective solution for building private LoRaWAN networks. Seeed Studio provides the SenseCAP Portal and SenseCAP Mate APP to manage devices and visualize data remotely. SenseCAP Portal – Manage devices, data, and access keys in one account. Includes Dashboard, Device Management, Data Management, and Access Key Management. Provides MQTT and HTTP API for further development. SenseCAP APP – iOS & Android versions for data visualization and remote management. Scan-and-play setup in 4 steps, ideal for users with little technical background. Clean UI for acquiring and viewing sensor data. Set time intervals to improve battery efficiency. Threshold values and alarms (coming soon). Documents SenseCAP S210X LoRaWAN Sensor Catalogue S210X Sensors User Guide S210X CE_FCC Certification Report Connect S210X Sensors to Azure IoT Central User Guide Battery Life Prediction Table SenseCAP S210X Decoder Certification HS CODE 9027899090 US HS CODE 9027894590 UPC EU HS CODE 9027109000 Country of Origin CHINA Part List Sensor Node (SenseCAP S2106 LoRaWAN pH Sensor by Seeed Studio) 1 Mounting Bracket 2 Quick Start Guide (SenseCAP S210X Series) 1 KA4*20mm Self-drilling Screws 4
