The Dragino SPH01-NB is a NB-IoT Soil pH Sensor for IoT of Agriculture. It is designed to measure the soil PH and soil temperature, so to send to the platform to analyze the soil acid or alkali level. The probe is IP68 waterproof.

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

SPH01-NB supports different uplink methods including MQTT, MQTTs, UDP & TCP for different application requirement, and support uplinks to various IoT Servers.

SPH01-NB supports BLE configure and OTA update which make user easy to use.

SPH01-NB is powered by 8500mAh Li-SOCI2 battery, it is designed for long-term use up to several years.

SPH01-NB has optional built-in SIM card and default IoT server connection version. Which makes it works with simple configuration.

Features:

NB-IoT Bands: B1/B2/B3/B4/B5/B8/B12/B13/B17/B18/B19/B20/B25/B28/B66/B70/B85 @H-FDD
Ultra-low power consumption
Monitor soil pH with temperature compensation.
Monitor soil temperature
Support pH calibration by end user
Multiply Sampling and one uplink
Support Bluetooth v5.1 remote configure and update firmware
Uplink on periodically
Downlink to change configure
8500mAh Battery for long term use
Nano SIM card slot for NB-IoT SIM

Applications:

Smart Agriculture

Common DC Characteristics:

Supply Voltage: built in 8500mAh Li-SOCI2 battery , 2.5v ~ 3.6v
Operating Temperature: -40 ~ 85°C

NB-IoT Spec:

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: 10uA @ 3.3v
Max transmit power: 350mA@3.3v

Specifications:

Environment

Operating Temperature

-40 ~ 85°C

Storage Temperature

-40 ~ 85°C

Protection Level

IP66

Datasheet: SPH-01-NB datasheet.pdf

Operation manual: SPH-01-NB User manual.pdf

NBIOT setup command: Dragino BC660K type device setup fro NB.txt

SPH01-NB - Dragino NB-IoT Soil pH Sensor