Controlling and tracking Reefer Containers. – CT3500

The CT 3500 is device provides shippers and carriers with comprehensive reports, analytics, alerts and remote two-way control of reefers to help streamline container operations and drive efficiencies.


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Track the location of the Reefer Container.
Just installing the device on the controller of a Reefer Container, the movement of the container can be tracked, enhancing the efficiency of managing Reefer Containers.
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Notify when an error code occurs
When the container encounters an Error Code during transit, a notification is sent and the Error Code can be managed without having to physically access the container.
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Reads the temperature from the controller of the container.
No need to install additional sensors or data loggers. The device can read and control directly through the Reefer Container's controller, ensuring accuracy and precision.
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Able to command Pre trip / Set point / Defrost functions.
Commands for Pre trip, Set point, Defrost, and other functions can be issued remotely from a computer or user's phone, without needing physical access to the device.


Cellular Technology– LTE FDD B1/B2/B3/B4/B5/B7/B8/ B12/B13/B18/B19/B20/B25/ B26/B28
– LTE TDD B38/B39/B40/B41
– UMTS B1/B2/B4/B5/B6/B8/B19
– GSM 850/900/1800/1900MHz
SIM TypeSolderable SIM
Communication ProtocolsSMS, UDP, TCP, FTP
WirelessBLE, cellular 
AntennaIntegrated cellular/GPS/BLE
GPS Technology – 72 channels
– Receive tracking sensitivity -157 dBm
Battery – Internal 2.6 Ah
– Charge temperature: 0°C to 45°C
– Discharge temperature: -20°C to 60°C
– Storage temperature: -20°C to 55°C at relative humidity 65+/-20% RH
I/ODigital I/O: 1-Wire bus
Accelerometer– 3-axis digital accelerometer with motion detection
– Optional impact detection
Power Input– 15-36 VAC
– 21-34 VDC
– Max peak 60V at 10 milliseconds
– Over-voltage protection
Ingress– IP69K
– IP67
Flammability – Enclosure: UL94 V-0
– Cable: UL1581 VW-1
Refrigerated Container Brand SupportThermo King, Star Cool, Daikin, Carrier
Certifications– FCC/IC
– CE Red
– RCM (Australia)
Physical Specifications– 8.81 x 3.31 x 1.18 inches
– 223.7 x 84.1 x 30 mm
– Plastic material: Polycarbonate
– Color: black
Environmental Compliance– Operating temperature: -40°C to +85°C
– Internal battery operating temperature: -20°C to +60°C
– IEC 60529
– Vibration: AAR S-9401, rail car body mounted; MIL-STD-810G
– Shock: MIL-STD-810G (Sec 516.6)
Harness/Installation/LEDs– Universal harness for installation across all OEMs
– RMM/PLM coexistence with included PAD
– Single tricolor LED to indicate unit status (cellular/Reefer comms)
– Permanent (VHB) and temporary (bracket) mounts
– Magnetic reset switch
Memory– Storage of more than 2000 messages
– Storage of more than 5000 onboard 12-point geofences plus unlimited backend geofences
– Storage of reefer software files before updates
– Storage of data log download files before sending
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