Digi Connect Tank

Fully Integrated Cellular-Enabled Tank Monitoring Solution



  • Remote access to tanks located virtually anywhere
  • Fully integrated sensor/long life-battery/ global cellular in NEMA 4X enclosure for broad tank application support
  • Tank location and level provides logistical and operational optimization
  • Reduced transportation/fuel costs via efficient routing of fleet and personnel
  • Predictable and efficient supply chain management
  • Integrated ultrasonic sensor for non-contact liquid level measurements
  • Includes temp/sound speed compensation


Carriers AT&T, International GSM Carriers*
Frequency Band North American Version: Dual Band UMTS/HSPA+ (850,1900 MHZ)
International Version: Dual Band UMTS/HSPA+ (900/2100 MHZ) Dual-Band GSM (900/1800 MHZ)
Global Version: Five Band UMTS/HSPA +(850/800,900,1900,2100 MHZ), Quad-GSM (850/900/1800/1900 MHZ)
Data Rate HSDPA Cat. 10 / HSUPA Cat.6 data rates
DL: max. 14.4 Mbps, UL: max. 5.76 Mbps
>> EDGE class 12 data rates:
DL: max. 237 kbps, UL: max. 237 kbps
>> GPRS class 12 data rates
DL: max. 85.6 kbps, UL: max. 85.6 kbps
Antenna Built-in
SIM Slots 1
Sensor Short Range Mid Range
Model Massa M-300/150 Massa M-300/95
Type Ultrasonic, Built-in temperature/sound speed compensation

Range at -20˚ C to +65˚ C:
4 inches (100 mm) to
7 feet (2.1 meters)

Range at -30˚ C to -20˚ C:
4 inches (100 mm) to
5 feet (1.5 meters)

Range at -20˚ C to +65˚ C:
1 feet (0.3meters) to
13 feet (4 meters)

Range at -30˚ C to -20˚ C:
1 feet (0.3meters) to
12 feet (3.7 meters)

Channels 56
Tracking Sensitivity GPS: -161 dBm; Glonass: -158 dBm
Horizontal Accuracy GPS: 2.5m; Glonass: 4m
Antenna Built-in
Configuration & Management Digi Remote Manager/Local USB to Serial CLI Protocol
Protocol TCP
Battery 7.2V, 14.5 Ah, Lithium Thionyl Chloride, non-rechargeable, replaceable
Battery Life Approximately 2 years (@ 2 reads/transmits per day)
Operating Temperature -30˚ C to +65˚ C (See range limitations in Sensor section above)
-30˚ C to +60˚ C (for ATEX rated applications)
Storage Temperature -40˚ C to +85˚ C
Relative Humidity 90% (Non-condensing after 90%)
Battery Discharge <1%/year if stored at +30˚ C
Dimensions (L x W x H) 7.0 in x 5.15 in x 6.0 in (17.8 cm x 12.9 cm x 15 cm)
Weight 1.25 lbs
LEDs Battery, Network
Enclosure Material Valox (Note: Massa sensor is PVC/PPA)
Enclosure Rating NEMA 4X
Mounting 1” NPT
Regulatory Approvals
Emissions FCC part 15 Subpart B class B, EN55022: 2010/AC: 2011 class B, IECS-003 Issue 5: 2012 class B
Immunity EN55024: 2010
Safety UL60950-1, CAN/CSA C22.2 No. 60950-1-01, IEC 60950-1:2005 (Second Edition); Am1:2009 + Am2:2013, EN 60950-1:2006 / A11:2009 /
A1:2010 / A12:2011 / A2:2013 and EN 60950-22:2006;
C1D2, ANSI/ISA 12.12.01-2013, CSA C22.2 No. 213-M1987
ATEX EN 60079-0:2012+A11:2013, EN 60079-15:2010, eII 3 G Ex nA nC IIC T6 Gc


Digi Connect Tank is a fully integrated cellular-enabled tank level sensor providing remote access to deployed tanks, totes and containers. Part of the Digi Tank solutions offer, it leverages Digi Remote Manager and integration services, enabling customers who own or manage large numbers of tanks to easily integrate into existing applications or work with 3rd party applications.

Digi Connect Tank provides logistical and operational optimization via tank level and location data. Customers can route feet and personnel efficiently, reduce transportation and fuel costs, and increase supply chain predictability.

Using 3G/2G cellular technologies, Digi Connect Tank can be installed in locations where network infrastructure may not be available. Its small form factor, durable NEMA 4X enclosure, industry safety ratings and long-life battery make this product ideal for use in a broad range of tank applications.