WIRELESS SOIL MOISTURE SENSOR

SKU: WS433-SMT

WS433-SMT is a Sub-Ghz wireless soil moisture, soil temperature and soil EC. The sensor can be used for up to 5 years with just 1 AA battery. Utilize advanced technology, Frequency Domain Reflectometry to deliver high accuracy and stable measurement of Soil Moisture, not affected by Fertilizer contents and Temperature like the simple Capacitance Moisture Sensor on the marker. The sensor will connect wirelessly to the Wireless Coordinator WS433-R then export the data to RS485 / modbusRTU and from there easily connect to any monitoring and control system. LOS distance from sensor to receiver is 500m and can be extended by Extender. Sensors can be used for applications such as intelligent irrigation systems, greenhouses, pastures for cows, soil testing ...

Reliable & Secured Wireless Connection

  • Sub-Ghz technology from Texas Instruments allows reliable wireless connection and secured data by AES-128

5-Year Battery Operated

  • Easy to configure the time intervals of Data logging, Data sending and with Event processor allows the battery life up to 5 years!

Pre-calibrated

  • Sensors are pre-calibrated at factory to deliver high accuracy and quick installation

High Accuracy

  • Utilize advanced technology, Frequency Domain Reflectometry to deliver high accuracy and stable measurement of Soil Moisture, not affected by Fertilizer contents and Temperature like the simple Capacitance Moisture Sensor on the marker

IP68

  • Ingress Protection IP68 allow sensor can be burried in the soil in long time
SENSORS SPECIFICATION :
SensorsAdvanced technology - Frequency Domain Reflectometry, Pre-calibrated at factory
Moisture range / accuracy / resolution0 .. 100 %, acc +/- 3.0% , res 0.01%
Temperature range / accuracy / resolution-30 .. + 70 oC, acc +/- 0.3 oC, res 0.1 oC
EC range / accuracy / resolution0 .. 20 mS/cm, acc +/- 2.0% span, res 0.1 mS/cm
Measurement VolumeDia. 70mm x Height 70mm
Wetted materials316L SS & thermoplastic
Sensor Dimensions71x45x16mm with probes 70mm and signal cable 2m
WIRELESS SPECIFICATION :
Data speedUp to 50kbps
Tranmission distanceLOS 500m
AntennaInternal Antenna, 3 dbi
Battery01 x AA 1.5, working time up to 10 years (depends on configuration)
Frequency BandISM 433Mhz, Sub-GHz technology from Texas Instrument, USA
International ComplianceETSI EN 300 220, EN 303 204 (Europe) FCC CFR47 Part15 (US), ARIB STD-T108 (Japan)
Vietnam Type Approval CertificationQCVN 73:2013/BTTTT, QCVN 96:2015/BTTT (EMC Compliance)
Security StandardAES-128
Operating temperature-40oC..+60oC (with AA L91 Energizer battery)
HousingPoly-carbonate, IP68
Installation methodPlugs directly into the ground with a 500mm long plastic rod
Dimensions / Net weight125x30x30mm (Wireless part only), < 60g
Box dimension / Gross weight190x50x50mm, 100g
ITEM CODESDESCRIPTIONS
**SOIL MOISTURE & TEMPERATURE SENSORS**
WS433-SMT-01Wireless Soil moisture and Temperature sensor 433Mhz, pre-calibarted, AA 1.5VDC battery, IP67/IP68, sensor cable 2m
**SOIL MOISTURE & SOIL EC SENSORS***
WS433-SMT-02Wireless Soil moisture and EC sensor 433Mhz, pre-calibarted, AA 1.5VDC battery, IP67/IP68, sensor cable 2m

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