Onset HOBO® MX2307 Outdoor Bluetooth Soil Moisture and Temp Data Logger
- External Sensors for Soil Moisture and Temperature Measurements
- Wireless Transmission of Recorded Readings to Phone or Tablet Using Bluetooth Smart LE Communications
- 0 to 0.64 m3/m3 (Mineral Soils) and 0 to 0.70m3/m3 (Soilless Media) Measurement Ranges
- User-Replaceable Lithium Battery with 2 Year Typical Life (1 Minute Sampling Rate)
- Stores up to 110,000 Measured Readings with Date/Time Stamp if Bluetooth Communications Not Available
Includes Screws and Cable Ties for Mounting. HOBOconnect App Available on the Apple Store (iOS) and Google Play (Android)
Overview of the Onset HOBO MX2307 Soil Moisture and Temperature Data Logger
The HOBO MX Soil Moisture Data Loggers are the first and only low-cost, fully integrated soil moisture data loggers with Bluetooth wireless data offload. The MX2307 measures and records both soil moisture and temperature. This logger is ideal for researchers and growers looking for accurate data used to save water, improve crop yields, reduce harmful runoff, and protect ecosystems.
Using only a mobile device or Windows laptop running Onset’s free HOBOconnect® app users can easily and quickly setup the logger and offload data via a wireless Bluetooth connection. With up to 100 feet of wireless range accessing the logger is easy and convenient even when used in hard-to-access field and greenhouse locations. When used in indoor areas, such as a greenhouse, users can add the MX Gateway (sold separately) for remote access and alarm notifications using the cloud based HOBOlink® software.
Onset HOBO® MX2307 Outdoor Bluetooth Soil Moisture and Temperature Data Logger Specifications
Soil Moisture (Volumetric Water Content) |
Measurement Range (Mineral Soils): 0 to 0.64 m3/m3 Measurement Range (Soilless Media): 0 to 0.70 m3/m3 Accuracy (Mineral Soils): ±0.031 m3/m3 Accuracy (Soilless Media): ±0.051 m3/m3 Resolution: 0.001m3/m3 Dielectric Measurement Frequency: 70 MHz |
Temperature | Measurement Range: -40°C to 100°C (-40°F to 212°F) Accuracy (-40°C to 0°C): ±0.25°C Accuracy (0°C to 70°C): ±0.20°C Accuracy (70°C to 100°C): ±0.25°C Resolution: 0.04°C (0.072°F) Drift: <0.01°C (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 |
Data Storage Capacity | 110,000 Temperature Readings (When Bluetooth Communications Not Available) |
Logging Mode | Fixed Interval (Normal, Statistics) or Burst |
Memory Mode | Wrap when Full or Stop When Full |
Start Mode | Immediately, Push Button, Date & Time or Next Interval |
Stop Mode | Wrap When Data Storage Full, Push Button, Date & Time or After Set Interval |
LED Indicators | Alarm: Visual LED (Until Logger is Reconfigured or Within Limits) Status: Green |
Sampling Rate | 1 Second to 18 Hours (User-Specified) |
Power Source | 2/3 AA 3.6 Volt Lithium Battery (User-Replaceable) |
Battery Life | Power Saving Mode Disabled: 2 Years typical @ 1 Minute Sampling Rate Power Saving Mode Enabled: 5 Years typical @ 1 Minute Sampling Rate Note: Dependant Upon Environment, Operating Range, Logging Interval, Remaining Connected with the App, Excessive Downloads and Paging My Impact Battery Life |
Time Accuracy | &dplusmn;1 Minute per Month 0C to 50°C (32°F to 122°F) |
Communications | Type: Bluetooth Wireless Wireless Data Standard: Bluetooth Smart (Bluetooth Low Energy, Bluetooth 4.0) Transmission Range: Up to 30.5 Meters (100 ft) Line of Sight Radio Power: 1 mW (0 dBm) |
Software | HOBOconnect Software App for iOS and Android Note: Bluetooth 4.0 is Required on your Mobile Device (Phone or Tablet) |
OS Compatibility | Android Phones and Tablets iPhone, iPad, iPod Touch with iOS 7.1 or Later Bluetooth 4.0 or Later |
Operating Range | Temperature: -25°C to 60°C (-13°F to 140°F) Humidity: 0 to 100% RH |
Standards Compliance | IP67, NEMA 6 UV Rated (Weatherproof), FCC, CE, RoHS |
Environment | Primarily Designed for Outdoor Usage |
Materials | Data Logger: Acetal, Silicone Gasket, Stainless Steel Screws Humidity:ASA Plastic Body with Polyurethane Epoxy Filling and Stainless Steel Pins Cable: PVC, UV Resistant and rodent Repellent (Soil Moisture Sensor Cable) |
Weight | 229 grams (80 oz) |
Dimensions | Logger Housing: 10.8 cm x 5.08 cm x 2.24 cm (4.25" x 2.0" x 0.88") Soil Moisture Sensor: 7.5 cm x 5.1 cm x 2.4 cm (2.95" x 2.02" x 0.95") Soil Moisture Sensor Needle: 5.4 cm x 0.32 cm (2.13" x 0.13" x 0.88") |