HOBO MX Soil Moisture and Temperature Data Logger

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Deskripsi

Overview

Pencatat kelembaban tanah yang berbiaya rendah dan terintegrasi penuh dengan data nirkabel Bluetooth. Tersedia dalam dua model – satu yang mengukur kelembapan tanah (HOBO MX2306) dan satu lagi yang mengukur kelembapan tanah dan suhu (HOBO MX2307) – alat pencatat ini ideal untuk peneliti dan petani yang mencari data akurat yang mereka perlukan untuk menghemat air, meningkatkan hasil panen, mengurangi limpasan yang berbahaya, dan melindungi ekosistem.

Hanya dengan ponsel, tablet, atau laptop Windows yang menjalankan aplikasi HOBOconnect gratis dari Onset, pengguna mendapatkan pengaturan nirkabel yang nyaman dan pengunduhan data melalui Bluetooth saat berada dalam jarak 100 kaki dari logger – sehingga memudahkan untuk mengambil data dari lokasi lapangan yang sulit diakses.

Features

  • Ready to deploy, with pre-attached sensors
  • Easy configuration and data offload with the free HOBOconnect app
  • Durable TEROS 10 soil moisture sensor lasts over 10 years in the field
  • For use in both mineral soils and soilless media
  • Sturdy, sharp stainless-steel spikes for easy installation and better soil contact
  • Option to view data in Percent of Field Capacity

Spesifikasi

Soil Moisture: Volumetric Water Content (VWC)

Measurement Range*
0.00 to 0.64 m³/m³ in mineral soils
0.00 to 0.70 m³/m³ in soilless media
Accuracy
±0.031 m³/m³ typical in mineral soils that have solution EC <8 dS/m
±0.051 m³/m³ typical in soilless media
Resolution
0.001 m³/m³
Dielectric Measurement Frequency
70 MHz

Temperature Sensor (MX2307)

Range
-40 to 100°C (-40 to 212°F), with tip and cable immersion in fresh water up to 50°C (122°F) for one year
Accuracy
±0.25°C from -40 to 0°C
±0.45 from -40 to 32°F
±0.2°C from 0 to 70°C
±0.36 from 32 to 158°F
±0.25°C from 70 to 100°C
±0.45 from 158 to 212°F
Resolution
0.04°C
0.072°F
Drift
<0.01°C per year
0.018°F per year
Response Time
3 minutes in air moving 1 m/s; 20 seconds in stirred water
4 minutes in air moving 1 m/s with RS3-B Solar Radiation Shield

Logger

Operating Range
-25° to 60°C
-13° to 140°F
Radio Power
1 mW
0 dBm
Transmission Range
Approximately 30.5 m (100 ft) line-of-sight
Wireless Data Standard
Bluetooth Low Energy (Bluetooth Smart)
Logging Rate
1 second to 18 hours
Logging Modes
Fixed interval (normal, statistics) or burst
Memory Modes
Wrap when full or stop when full
Start Modes
Immediate, push button, date & time, or next interval
Stop Modes
When memory full, push button, date & time, or after a set logging period
Time Accuracy
±1 minute per month 0° to 50°C (32° to 122°F)
Battery Type
2/3 AA 3.6 Volt lithium, user replaceable
Battery Life
2 years, typical with logging interval of 1 minute and Bluetooth Always On enabled; 5 years, typical with logging interval of 1 minute and Bluetooth Always On disabled. Faster logging intervals and statistics sampling intervals, burst logging, remaining connected with the app, excessive downloads, and paging may impact battery life.
Memory
110,000 measurements, maximum (472 kB)
Full Memory Download Time
Approximately 60 seconds; may take longer the further the device is from the logger
Dimensions
Logger housing: 10.8 x 5.08 x 2.24 cm
4.25 x 2.0 x 0.88 in.
Soil moisture sensor: 7.5 x 5.1 x 2.4 cm
2.95 x 2.02 x 0.95 inches
Soil moisture sensor needle length: 5.4 cm (2.13 inches)
Soil moisture sensor needle diameter: 0.32 cm (0.13 inches)
Temperature sensor (MX2307) diameter: 0.53 cm (0.21 in.)
Sensor cable length: 2 m (6.56 ft)
Weight
MX2306: 229 g (80 oz)
MX2307: 267 g (94 oz)
Materials
Logger: Acetal, silicone gasket, stainless steel screws
Soil Moisture Sensor: ASA plastic body with polyurethane epoxy filling and stainless steel pins
Temperature Sensor (MX2307): Stainless steel waterproof tip
Cable: PVC, UV resistant and rodent repellent (soil moisture sensor cable)
Environmental Rating
Temperature sensor and cable (MX2307): Immersion in water up to 50°C (122°F) for 1 year

Notices

*
The sensor data can be post-calibrated if necessary (e.g. the sensor is used in non-mineral soil types or higher than standard accuracy is required). Users can apply a calibration equation to the data exported from the app. The VWC range will depend on the calibration equation.

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