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Name: Wafer Sensor
E-mail: sales@wafer-sensor.com
Add: No.645 Sherbrooke St West Montreal. Que. H4A 3T4 Canada

Products > Meter

5TM Soil moisture and temperature sensor

Product name：5TM Soil moisture and temperature sensor

Item：5TM

Details：

ECH2O 5TM

Temperature integrated with soil moisture

The 5TM delivers temperature, measured by an onboard thermistor, along with accurate volumetric water content.

Engineered for accuracy

The 5TM determines volumetric water content (VWC) by measuring the dielectric constant of the soil (or other media) using capacitance/frequency domain technology. Signal filtering minimizes salinity and textural effects, making the 5TM accurate in most soils and soilless media. Factory calibrations are included for mineral soils, potting soils, rockwool, and perlite.

Easy installation

The 5TM’s small size makes it easy to install in the field and the greenhouse. This robust sensor can be pushed directly into undisturbed soil to ensure good accuracy.

Plug and read

Get straight to the data with an Em50-series data logger. Just install the 5TM, plug it into the Em50, set the clock and measurement intervals, and start logging data. No programming required.

Easy integration

The 5TM comes standard with both serial and SDI-12 communication options, meaning easy integration with systems manufactured by other companies.

Advantages of the 5TM

Measures VWC and temperature
SDI-12 compatible
715 mL volume of influence

Specifications

Accuracy	Apparent dielectric permittivity (ε_a): ± 1 ε_a from 1 - 40 (soil range); ± 15% from 40 - 80 Soil Volumetric Water Content (VWC): using Topp equation: ± 0.03 m³/m³ (± 3% VWC) typical in mineral soils that have solution electrical conductivity < 10 dS/m; using medium specific calibration, ± 0.02 m³/m³ (± 2% VWC) in any porous medium Temperature: ± 1 °C
Resolution	ε_a: 0.1 ε_a from 1-20, < 0.75 ε_a from 20-80 VWC: 0.0008 m³/m³ (0.08% VWC) from 0 to 50% VWC Temperature: 0.1 °C
Range	ε_a: 1 (air) to 80 (water) Temperature: -40 - 60 °C* *Sensors can be used at higher temperatures under some conditions. Contact METER for more details.
Dimensions	10 cm x 3.2 cm x 0.7cm
Cable length	Sensors come standard with 5 m cable. Custom cable lengths available. Maximum cable length of 75 m. Please contact METER if you need longer cable lengths.
Measurement time	150 ms
Power	3.6 - 15 VDC, 0.3 mA quiescent, 10 mA during 150 ms measurement
Output	RS232 or SDI-12
Connector types	3.5mm "stereo" plug or stripped and tinned lead wires (3)
Data logger compatibility (not exclusive)	METER EM50/60 Series, ProCheck, Campbell Scientific
Warranty	One year, parts and labor