SPH01-LS Solar Powered LoRaWAN Soil pH Sensor for Smart Agriculture

The SPH01-LS is a LoRaWAN Soil pH Sensor for IoT of Agriculture. It is designed to measure the soil PH and soil temperature, to send to the platform to analyze the soil acidity or alkalinity level. The probe is IP68 waterproof.

SPH01-LS probe is made by a Solid AgCl reference electrode and a Pure metal pH-sensitive electrode. It can detect the soil's pH with high accuracy and stable value. The SPH01-LS probe can be buried in soil for long-term use.

The LoRa wireless technology used in SPH01-LS allows the device to send data and reach extremely long ranges at low data rates. It provides ultra-long range spread spectrum communication and high interference immunity whilst minimizing current consumption.

SPH01-LS supports BLE configuration and wireless OTA update, which makes users easy to use.

SPH01-LS is powered by a solar panel + Li-ion battery It is designed for long-term use up to 5 years.

Each SPH01-LS is pre-loaded with a set of unique keys for LoRaWAN registrations, register these keys to the local LoRaWAN server, and it will auto-connect after power on.

Features: 

LoRaWAN 1.0.3 Class A

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

Ultra-low power consumption

Monitor soil pH with temperature compensation.

Monitor soil temperature

Monitor Battery Level

Support pH calibration by the end user

Support Bluetooth v5.1 and LoRaWAN remote configuration

Support wireless OTA update firmware

IP66 Waterproof Enclosure

IP68 rating for the Sensor Probe

AT Commands to change parameters

Downlink to change the configuration

Solar panel + 3000mAh Li-on battery

Specification:

Common DC Characteristics:

Supply Voltage: built-in 8500mAh Li-SOCI2 battery , 2.5v ~ 3.6v

Operating Temperature: -40 ~ 85°C

Soil pH:

Range: 3 ~ 10 pH 

Resolution: 0.01 pH

Accuracy: ±2% under (0~50 ℃). Accuracy will be poor under 0 due to frozen.

Temperature Compensation Range: 0 ~ 50℃

IP68 Protection

Length: 3.5 meters

Soil Temperature:

Range -40℃～85℃

Resolution: 0.1℃

Accuracy: <±0.5℃(-10℃～40℃)，<±0.8℃ (others)

IP68 Protection

Length: 3.5 meters

LoRa Spec:

Frequency Range,  Band 1 (HF): 862 ~ 1020 MHz

Max +22 dBm constant RF output vs.

RX sensitivity: down to -139 dBm.

Excellent blocking immunity

Battery:

Solar panel + Li-ion battery

Capacity: 3000mAh

Power Consumption:

Sleep Mode: 5uA @ 3.3v

LoRa Transmit Mode: 125mA @ 20dBm, 82mA @ 14dBm

Applications:

Smart Agriculture 

Package Content:

1* LSPH01-LS Soil pH Sensor

Dimension and Weight:

Package:  

Size: 195 x 125 x 55 mm

Weight:   420g

Order Info

SPH01-LS-XXX

XXX: the default frequency band

    EU433: Default frequency band EU433

    CN470: Default frequency band CN470

    EU868: Default frequency band EU868

    IN865: Default frequency band IN865

    KR920: Default frequency band KR920

    AS923: Default frequency band AS923

    AU915: Default frequency band AU915

    US915: Default frequency band US915

Useful Link:

Datasheet

User Manual

Certificate

Firmware