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SNOdar Snow Measurement

A new high-accuracy, high-tech snow depth sensor + data logger, configurable via BLE

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User Guides     Video Guides     SDI-12 Info     Data Sheet     Field Data 2021  2022     Latest Firmware Release     Privacy Policy     Eula

Major Firmware Update v0.9.4 as of 02-14-2023 (see Changelog)!

SNOdar Snow Depth Sensor from Bozeman, Montana



Product Overview: Available for Purchase Here

SensorLogic’s new SNOdar sensor is used for accurately and robustly monitoring snow depth and new snowfall in remote sensing applications, even during winter storm events.

Accuracy + Low Power + Low Cost!

SNOdar measures seasonal snow depth and snowfall. Simultaneously, it can relay data over a serial RS-232 or SDI-12 bus to commercially available telemetry, i.e. Satcom, data logger, or cell modem. Moreover, it can record an entire season of data on its internal, nonvolatile data logger so there is no need to pair every sensor with a separate data logger;therefore, a large cost savings upon deployment.

The sensor is small and lightweight, yet durable enough to monitor snow depth all season long at -40 degC and colder. The unit is typically powered from +12 VDC battery source and consumes less than 0.5 Watt on average. A small battery and solar panel (e.g. 50Ah + 10W) is all that is needed for seasonal deployment, depending on lattitude. The unit can be set up to operate as a distance sensor, stormboard snowfall sensor, or a seasonal snow depth sensor. A powerful mobile App allows the user to quickly configure and deploy the unit as well as monitor real-time data when within Bluetooth range. As a stormboard sensor, view or download the latest storm snow total, wipe the board, and re-calibrate for the next snowfall event. Furthermore, within minutes of deployment set up the unit as a standalone depth/snowfall sensor and data logger. Return periodically with an App-enable mobile device to download the latest data and instantly upload the data to a cloud platform, of your choice, for viewing, management, or analysis.

Get the latest Mobile App:




Parameter Sub-Parameter Description Min Max Units
Input Voltage Input voltage range (VDC) 6 24 volts
Operating Temperature Outside, ambient operating temperature range -40 60 °C
Storage Temperature Inside, ambient storage temperature range -40 85 °C
Mechanical Vibration Mil-STD-883D, Method 2007.2, 20 to 2000 Hz   20 g
Mechanical Shock Mil-STD-883D, Method 2002.3, 1 msec, 1/2 sine, mounted   500 g
Ingress Protection Dust tight. Immersion, up to 1 meter depth IP67    
Corrosion Resistance MIL-A-8625, Aluminum anodizing process (6061 T6) Type II    
Accuracy Typical deviation from absolute depth +- 1 +- 2 cm
Resolution Minimum detectable depth change 0.3 1 cm
Range Distance from snow target 0.09 9 meters
Measurement Interval 1 minute granularity 1 60 minutes
Current Consumption @ 12 VDC, with Heater ON 0.250 0.260 amps
Current Consumption @ 12 VDC, with Heater OFF (Idle, Active) 0.035 0.045 amps
Power Consumption Max measured with heater ON 0.42 3.2 watts
Average Power Typical average seasonal power usage 0.5   watts
Weight Without and with mounting clamp, respectively 265 375 grams
Size 6.3 x 6.3 x 9.5 (W x L x H)     cm
Obliqueness From vertical, angle slant relative to measuring surface -30 30 degrees

Electrical Interfaces


The communication standards accessible on cable allow for rapid deployment with commercial off-the-shelf (COTS) telemetry devices.


Bluetooth Low Energy (BLE) 5.x



The cable that ships with the SNOdar has a straight overmolded connector.

The cable pinout and cable data sheet.

Mounting Clamp

The clamp that ships with the SNOdar is aluminum 6061-T6 with 304-stainless steel hardware and accommodates a pipe OD of 1.49-1.58”. Please contact SLI if a different size clamp is required.

The clamp drawing, a custom derivative of this pn: MINI 360 1.5.

Regulatory Compliance & Certs

Full Compliance

Folder Structure

├── data_sheet
│   ├── SNOdar_Data_Sheet.pdf                               # Main SNOdar PDF data sheet
│   ├── SNOdar_Data_Sheet_2pg.pdf                           # Main SNOdar PDF short form data sheet
│   ├── 5C8070_CD.pdf                                       # Cable data sheet
│   └── CJS5001(40)AS.pdf                                   # Mounting Clamp data sheet
├── eula
│   └── SNOdar_End_User_License_Agreement.pdf               # SNOdar EULA PDF
├── field_data_WY2021
│   ├──                                           # Info on field data sites
│   ├── BannerSummitSNOdarWY2021.png                        # Data PNG
│   ├── BogusBasinSNOdarWY2021.png                          # Data PNG
│   └── BridgerBowlSNOdarWY2021_markups.png                 # Data PNG
├── field_data_WY2022
│   ├──                                           # Info on field data sites
│   ├── BridgerBowlBrackettCreekSNOdarWY2022_markups.png    # Data PNG
│   └── BridgerBowlSacajaweaSNOdarWY2022_markups.png        # Data PNG
├── privacy-policy
│   └──                                           # Privacy policy markdown file
├── sdi12_info
│   ├──                                           # Basic information on the SDI-12 interface and data
│   ├── 1_minute_9_values.CR1X                              # Logger program for CR1000X data loggers
│   └── 1_minute_9_values.cr6                               # Logger program for CR6 data loggers
├── user_guides
│   ├──                                           # Quick Start Guide on the SNOdar sensor and setup via the mobile App
│   ├── snodar_quick_start_guide.pdf                        # Quick Start Guide on the SNOdar sensor and setup via the mobile App PDF
│   └── images                                              # Contains the images for this markdown file