Soil Moisture, Temperature and
Electrical Conductivity Sensor


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Soil Moisture, Temperature and Electrical Conductivity Sensor


EM500-SMT provides an external probe for receiving accurate and instantaneous information on soil moisture content, temperature, and salinity, it is an important tool for anyone involved with soil.

smt sensor

measuring rangeResearch-grade accuracy in multiple soil media

easy installationEasy installation into undisturbed soil

4 in 1 sensor Rapid monitoring of growing conditions

Smart Soil Monitoring >>>

Over the past few years, the applications of massive IoT deployed in soil monitoring, for example, greenhouse, have accelerated the evolution of digital farming. The data collection of environmental factors such as temperature, humidity, soil content, wind speed, rainfall, nitrogen, phosphorus, and potassium has composed an important part in soil monitoring.

Smart Wine Cellar
Cloud Web & APP

Cloud Web & APP:

EM500-SMT Sensor works perfectly with Ursalink Cloud (Web & App), which allows you to monitor your data in the office or on the go. With a drag-and-drop experience, Ursalink Cloud provides rich features such as intuitive widgets, triggers, sharing and transfer ownership of devices, layers, etc.

LoRaWAN Wireless Transmission

Ultra-low power consumption and easy deployment

Built-in 19000 mAh high-capacity battery can be used for 10 years.

Ultra-low power

Simple and Easy to Use
Configure Your Device via NFC

Turn on NFCTurn on NFC and attach
the sensor to the NFC area
Configure your sensorConfigure your sensor


LoRaWAN® Frequency CN470/RU864/IN865/EU868/US915/AU915/KR920/AS923
Tx Power 20dBm
Sensitivity -147dBm @300bps
Mode OTAA/ABP Class A
Measurement Range 0% to 100%
Accuracy ±2%
Physical Characteristics Probe Length 3m
Power Supply 19000 mAh Li-SOCL2
Operating Temperature -30°C to +70°C
Ingress Protection IP66 (IP67 if required)
Dimension 105.4 × 71 × 69.5 mm (Sensor and cable are not included)
Mounting DIN rail, wall, pole mounting

Selection Guide

Series Picture Model Measuring Range Descriptions
EM500-SMT em500 smt EM500-SMT-EC5 0~100% RH 19000 mAh Li-SOCl2 battery
NFC enabled
IP66 rated
EM500-SMT em500 smt EM500-SMT-MEC20 Moisture
Electrical Conductivity
19000 mAh Li-SOCl2 battery
NFC enabled
IP66 rated
Cable Length 2M

Business Type

Ordering Info