The ATU 620 is a battery operated asset tracking product designed for reliable, multi-year deployments. The ATU 620 is an ideal solution for managing assets that will be deployed for long periods without maintenance needs.

Competitive Edge

The sealed ATU 620 high-value tracking unit from CalAmp features a small size, superior GPS performance and replaceable AA Alkaline batteries. The ATU 620 is a complete asset tracking and communications device incorporating next-generation, super-sensitive GPS technology on GSM/GPRS, CDMA 1xRTT and HSPA cellular networks for installation inside any mobile asset. Superior internal antennas for both cellular and GPS eliminate the need for wired antennas and make the ATU 620 mountable virtually anywhere for easy, inexpensive installations. Messages are transported across the cellular network using enhanced SMS or UDP messaging providing a reliable communications link between the device and your application servers. The ATU 620 is designed to dramatically reduce cost and size while significantly improving field reliability.


The ATU 620 employs CalAmp’s industry leading on-board alert engine, PEG™ (Programmable Event Generator). This advanced engine monitors external conditions and supports customer defined exception-based rules to help meet the needs of your application. PEG continuously monitors the vehicle environment and responds instantaneously to pre-defined threshold
conditions related to time, date, motion, location, geo-zone, input and other event combinations. With PEG, your unique application will meet demanding customer requirements.
This behavior can be programmed by CalAmp before shipment, at a customer’s facility, or over-the-air once the unit has been fielded.

Over-the-Air Serviceability

The ATU 620 also leverages CalAmp’s industry leading over-the-air device management and maintenance system, PULS™ (Programming, Updates, and Logistics System). Configuration
parameters, PEG rules and firmware can all be updated over the air. PULS offers out-of-the box hands free configuration and automatic post-installation upgrades. You can also monitor unit health status across your customers’ fleets to quickly identify issues before they become expensive problems.

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Manufacturer Calamp
Dimensions2.9 x 4.9 x 1.4”/ 74 x 124 x 36mm
Weight11 oz/ 325 g
Power Supply4.2V internal battery
Typical 200uA @ 4.2V (deep sleep )
Typical 26 mA @ 4.2V (SMS+UDP connection, GPS off)
Typical 140 mA @ 4.2V (continuous transmit)
CertificationsPTCRB, FCC, Industry Canada, CE
Operating Temperatures-30º to +70º C (operating)
-40º to +85º C (storage)
Battery Life1 or 2 years at 1 message/day
CommunicationsGPRS/EDGE/HSPA and CDMA 1xRTT packet data, UDP and SMS
Humidity95%RH @ 50º C non-condensing
  • Battery life of 1 or 2 years at 1 message/day
  • IP66 sealed and rugged enclosure
  • Packet data (GPRS, CDMA 1xRTT, or HSPA) and SMS-based messaging
  • Internal cellular and GPS antennas
  • Super Sensitive GPS tracking
  • Built-in 3-axis accelerometer for motion sense, tilt, and impact sensing
  • Ultra low power sleep mode
  • Voltage monitoring and low battery notification
  • 2,000 bufferred messages
  • 10 built-in geo-fences
  • PEG™ exception-based rules
  • Automatic, over-the-air unit configuration on power-up (PULS™)
  • Over-the-air firmware download (PULS™)
  • Web-based device management (PULS™)

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