SM150 Kit

Moisture measurement kit with carry case Zoom
Sensor with HH150 soil moisture meterSM150 Soil Moisture KitHH150 Soil Moisture MeterSM150 Soil Moisture Measurement Kit

Testimonials

"We used the instrument for 4 days of intense field work at 15 conservation areas across the Greater Toronto area - more than 200 readings per day. The Sensor proved to be an invaluable asset to our research project. It is fast, light weight and very energy efficient." Nao Ito, Graduate Student
York University, Toronto
  • Complete low-cost kit
  • ± 3% accuracy
  • Portable and easy to use

The SM150 Soil Moisture Kit provides an affordable and easy-to-use tool for obtaining reliable moisture measurements with minimal soil or substrate disturbance.

Introduction

The kit comprises an SM150T* Soil Moisture Sensor, a dedicated HH150 Moisture Meter and a carry case. The cable and connector are watertight – an essential requirement for potentially wet environments.

The HH150 Meter displays volumetric water content (% volume). Please note that although the SM150T Sensor has a built-in temperature sensor, the HH150 Moisture Meter does not measure or display temperature.

Simple operation

The HH150 hand moisture meter is lightweight and is very easy to use, being a readout-only device (no data recording or PC complications). Operation is simple – just insert the SM150T into the soil or substrate and press the Read button to make a reading.

Horticulture applications

The SM150 Kit comes with substrate calibrations for perlite, coir, peat, and mineral wool, as well as soils – providing a rapid, rugged solution for checking the uniformity of growing conditions for many types of growing media.

The SM150T is easy to insert and install – its sharp pins minimise soil disturbance and preserve the original soil structure around the measurement rods.

Other Delta-T soil moisture kits

Two alternative Delta-T Devices moisture measurement kits are available if greater accuracy or electrical conductivity (EC) measurements are required.

 

*The SM150 Kit was previously supplied with the SM150 Sensor, but now comes with the SM150T Sensor.

 

Specification

MeasurementVolumetric water content and soil temperature
Accuracy± 0.03 m3.m-3 (3%)
With soil-specific calibration
± 0.5°C (0 to 40°C for temp sensor)
± 0.75°C (-20 to +60°C for temp sensor)
Soil moisture measurement rangeFull accuracy over:
0 to 0.7 m3.m-3
Full range : 0 to 1.0 m3.m-3
Salinity range50 to 500 mS.m-1
Salinity errors < 0.035 m3.m-3 from 0.05 to 0.4 m3.m-3. Can be calibrated up to 2000 mS.m-1
Temperature rangeFull accuracy over: 0 to 40°C
Output0 to 1.0 V differential
Corresponding to 0 to ~0.6 m3.m-3
Resistance 5.8Ω to 28Ω for temp sensor
Power requirement5-14 V, ~18 mA for 1s
Minimum 5 V with 100 m cable
EnvironmentalIP68 (-40 to +70°C)
Sample volume~55 x 70 mm diameter
Sample volume is weighted towards soil immediately surrounding the rods
Dimensions and weightOverall: 143 x 40 mm diameter
Rods: 51 mm x 2.5 mm diameter
Weight: 0.1 kg (exc. cable)
Sensor calibrationsIndividual sensors are interchangeable
Recalibration advised every 3 years (depending on use)
Soil calibrationsGeneralised Mineral and Organic soil calibrations are supplied
HH150 Meter
Accuracy0.5% of full scale over 5-40 °C (±7.5mV – negligible effect on SM150 accuracy)
Resolution0.1% of voltage reading
Battery life/standby life2 x GP alkaline AAA/ 10000 readings/1 year
EnvironmentalNon-condensing
ComplianceCE, FCC & ROHS

 

Accessories

Hardware

    Main components and software

      Mountings and enclosures

        Installation accessories

          Cables and networks

            GPRS remote comms

              Spares and consumables

                Power options

                  Other

                    Product Resources

                    Data Sheets

                    Manuals

                    FAQs

                      Regulatory Information