FlashTrak® Wireless Refrigerator Monitor (WRM)

Model 22144

  • Two-channel logging capability
  • Blunt tip probe
  • Glycol buffered probe to emulate condition of vaccines and most fluids
  • Uninterrupted data transmission during power outages
  • 30-hour back-up battery
  • Secure PDF reports, analytics and queries
  • Audit trail to document regulatory compliance
  • 21 CFR Part 11 compliant cloud-based administration system

This wireless system is ideal for refrigerator and freezer units where vaccines, pharmaceuticals or food products are stored. It continuously monitors time and temperature around the clock, using Wi-Fi and cellular communication to transmit data to a cloud-based application where it is visible in real-time and can be accessed 24/7. This secure web application allows users to remotely configure the WRM unit with logging parameters such as sample interval, high/low alarm limits, as well as alerts and notifications to designated personnel who can take immediate corrective action when excursions occur.

FlashTrak WRM ensures data is never lost even in the event of a power failure. This feature is essential in order to maintain the quality, efficacy and safety of products. The WRM is a valuable tool for documenting regulatory compliance, for maintaining continuity of business and following disaster recovery plans after a power outage.


FlashTrak Wireless Refrigerator Monitor, Model 22144 Specifications
Feature Specification
DeltaTrak manufactures products under an ISO 9001:2015 registered quality management system
Probe Measurement Range) -40°F to 185°F (-40°C to 85°C)
Operating Range -22°F to 140°F (-30°C to 60°C)
Programmable Sample Interval 1 to 60 minutes
Display Resolution 0.1° F / °C
Accuracy Within Normal Operating Range ±1.0°F from 14°F to 77°F (±0.5°C from -10°C to 25°C)
RF Bands 915 MHz
868 MHz ISM Band (available by special order)
Power Source 110V AC / 220V AC
Backup Battery 5 AA NiCad batteries
Operating Life (on Backup Battery) 30 hours
Data Capacity (on Backup Battery) 6400 data points, 1M data points on optional SD card
Battery Shelf Life (non-operating) 18 months
Weight 21.9 oz (621 g)
Dimensions 5.1 in x 7.1 in x 2.0 in (129.5 mm x 180.3 mm x 50.8 mm)
Casing ABS Plastic
LCD Display 2 lines, 60 characters per line, backlit red, green & blue
Alarm Audio buzzer
Buttons Green - Info
Red - Alarm /cancel
Data Communication Cell phone data service GSM/3G (backup over Wi-Fi)
Certification FCC, WEEE, CE Mark, RoHS compliant


In order to use the FlashTrak WRM, you must have an account for the FlashTrak WRM Web Service. If you have a WRM unit and do not have an account, please register here and pay the annual user license fee.

Request New Account and Register Users

If you have an account for the FlashTrak WRM Web Service and your license is due for renewal, register here and pay the annual user license fee.

Renew Annual License

If you have a new FlashTrak WRM unit and do not have an account, go to Account Registration to request a new account and register users.


Model Probe Temperature Range
20963 WRM Blunt Tip Probe 20963  WRM Blunt Tip Probe -40°F to 185°F
(-40°C to 85°C)
20964 WRM Sensor in Glycol Bottle 20964  WRM Sensor in Glycol Bottle -40°F to 104°F
(-40°C to 40°C)