Spectrum Technologies, Inc

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Spectrum Technologies is celebrating its 30th Anniversary - an industry-leading company that develops and markets affordable measurement instrumentation and technology to the agricultural and horticultural markets throughout the world. The company has over 15,000 customers in over 75 countries. The customers are in the agricultural, chemical, seed, and food industries as well as major universities, the USDA-ARS, growers, agricultural and turf consultants, golf course superintendents,greenhouse growers,and research organizations worldwide. 

Spectrum Technologies, Inc Official Website

  • Soil Moisture Meter

    Soil Moisture Meter 
    Model: TDR 150
    Origin: Origin: USA

    Technical Specification:
    •  Measurement Principle  : Time - domain measurement methods
    •  Measurement Units: Percent Volumetric Water Content (VWC)
    •  Resolution: 0.1% VWC
    •  Accuracy: +- 3.0% VWC with Electrical Conductivity (EC)  < 2 mS/cm
    •  Range: 0% to saturation (Saturation up to about 50% volumetric water depending on soil type)
    •  Battery/Life: 4 AA lithium batteries; approximately 100,000 readings without backlight
    •  Data Logger: 50,000 measurements
    •  EC: Range: 0 to 5 mS/cm, Resolution: 0.01 mS/cm, Accuracy: +/- 0.1 mS/cm
    •  Temperature: Range: -30°C to 60°C, Resolution: 0.1°, Accuracy: +/- 1°C


  • TDR 150
    TDR 150