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    Tensiometer Soil Moisture Sensor for Irrigation

    $136.56
    Good tensiometer soil moisture sensor for irrigation, operates on a 10-24V DC power supply and supports various measuring depths of 15cm, 30cm, 45cm, 60cm, 75cm, 90cm, 105cm, and 120cm. The output signal is 4~20mA or RS485 (ModBus protocol), and it has a power consumption of 0.8W when supplied with DC24V. The soil humidity sensor has a temperature resistance range of 0~+80°C for its transmitter component and a measurement range from -100kPa to 0, with an accuracy of ±0.5kPa at 25°C. The soil sensor provides a resolution of 0.1kPa and is constructed with a transparent PVC plastic tube.
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    SKU: ATO-SOIL-RSTRZL
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    Delivery date: 6-12 days

    The tensiometer soil moisture sensor uses a 10-24V DC power supply and supports depths from 15cm to 120cm. It operates in temperatures of 0~+80°C with a measurement range of -100kPa to 0 and ±0.5kPa accuracy at 25°C. The sensor has a 0.1kPa resolution, is made of transparent PVC, and has an IP67 protection rating. It outputs a 4~20mA or RS485 (ModBus) signal, consumes 0.8W (DC24V), and has a response time of 200ms.

    Specification

    Model ATO-RS-TRZL-N01-1-*
    Power Supply 10-24V DC power supply
    Measuring Depth 15cm/30cm/45cm/60cm/75cm/90cm/105cm/120cm
    Output Signal 4~20mA/RS485 (ModBus protocol)
    Transmitter Component Temperature Resistance 0~+80℃
    Measurement Range -100kPa - 0
    Measurement Accuracy ±0.5kPa (at 25℃)
    Resolution 0.1kPa
    Exterior Material Transparent PVC plastic tube
    Protection Level IP67
    Power Consumption 0.8W (DC24V supply)
    Response Time 200ms

    Features

    Tensiometer soil moisture sensor features

    • Made with transparent PVC plastic tubing, allowing direct observation of water levels. It features a fast response time, making it highly responsive to changes in soil conditions.
    • Equipped with a high-quality ceramic head that ensures quick water permeability without air penetration, enhancing sensitivity.
    • Resistant to the influence of salts in the soil, as well as chemicals like fertilizers, pesticides, and other agricultural substances. This durability ensures that agricultural activities do not affect measurement accuracy, maintaining precise data.
    • Uses standard ModBus-RTU485 communication protocol, supporting a maximum communication distance of up to 2000 meters.
    • Compatible with a 10-24V wide voltage power supply, allowing flexibility in various installation environments.

    Size

     Tensiometer soil moisture sensor size

    Installation Location Selection

    • Install the device after planting the crop.
    • The installation location should have level ground.
    • Under fully irrigated conditions, prioritize areas with lower water levels as monitoring
      locations; under partially irrigated conditions, select moist areas as monitoring locations.
    • Choose locations that represent the average growth conditions of most crops.
    • Understand the root distribution of the monitored crop; generally, select locations close to the crop's main water-absorbing roots.

    Tips: Is the sensor affected by environmental factors like temperature or sunlight?

    The Tensiometer Soil Moisture Sensor is designed to be robust and withstand various environmental conditions, including high temperatures and direct sunlight. Here’s how it performs under different environmental factors:

    1. Temperature: The sensor can operate within a wide temperature range (0~+80°C), suitable for most agricultural settings. However, extreme temperatures may slightly affect water tension readings. For best results, avoid prolonged exposure to temperatures near the extremes of its range.
    2. Sunlight: The transparent PVC material is UV-resistant, allowing the sensor to be exposed to sunlight without degrading. However, excessive heat from direct sunlight can cause evaporation in the Tensiometer’s water chamber. Regularly checking water levels can mitigate this issue.
    3. Humidity and Rain: The IP67 protection rating means the sensor is dust-tight and can withstand temporary immersion in water. This makes it suitable for humid and rainy environments, though it’s advisable to secure the sensor to prevent water accumulation.
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