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This data logger requires the RFC1000 Wireless Transceiver, purchased separately.


  • Wireless two-way communication
  • Ambient and thermocouple temperature monitoring
  • View data in real time
  • Audible and LED alarm indicators
  • Trigger settings
  • NIST traceable calibration
  • Stores 16,128 readings per channel
  • Field upgradeable
  • Reading rate: 1 second up to 24 hours
  • Automatic cold junction compensation
  • Battery life: 3 years typical at 1 minute reading rate
  • Battery life indicator
  • Rugged ABS plastic body
  • Measures just 3.0" x 3.5" x 0.95

The MadgeTech VTMS vaccine temperature data logger system is ideal for the continuous measurement and data logging of temperature sensitive vaccines or pharmaceuticals in refrigerators, freezers, and coolers. The system includes a NIST traceable MadgeTech RFTCTemp2000A data logger with thermocouple, glycol bottle and a power supply.

The convenient digital display on the MadgeTech VTMS provides current reading for the thermocouple channel. Minimum, maximum and average statistics are also provided for a convenient snapshot of logged data. For instant out-of-range notification, an audible buzzer and LED alarm indicator notifies users when the temperature is above or below the specified alarm set point. The MadgeTech RFTCTemp2000A also feature programmable trigger settings for applications in which logging is critical only above or below a specified temperature.

The MadgeTech VTMS vaccine temperature data logger system can alert the user, or other personnel, via email or text message if the refrigerator has failed or if the temperature is outside the nominal range. This allows users to take immediate action to ensure vaccines and pharmaceuticals are not destroyed. To prevent false alarms, the RFTCTemp2000A data logger is connected to a glycol bottle which provides temperature buffered readings. The MadgeTech VTMS utilizes MadgeTech 4.0 software. Data can be viewed in graphical or tabular formats and summary and statistics are available for further analysis. The software features export to Excel, data annotation, digital calibration, and more.

Applications for the VTMS Data Logger

  • Vaccine temperature monitoring
  • Medical & pharmaceutical monitoring
  • Process verification and validation

Required Components

These additional components are required for the operation of your product. We strongly advise you to purchase these components unless you already own them or own a suitable alternative.

MadgeTech RFC1000 Wireless Receiver
Designed to communicate between MadgeTech’s two-way wireless data loggers and MadgeTech software


Please consider these optional accessories.

MadgeTech U9VL-J Lithium Battery
9.0 Volt, Lithium Battery, 1200 mAH
MadgeTech RFC1000 Cloud Relay
Transmits real-time and recorded information from up to 64 data loggers directly to the MadgeTech Cloud


This product can be used in the following applications:

Application Notes

Here's how some of our customers used this product.

Small Scale Vaccine Storage Monitoring

The Background: Our customer is a small pharmacy that is required to monitor and track the temperatures of the flu vaccines they use.

The Problem: The customer uses just a single, small refrigerated storage unit to hold this vaccine. To comply with regulatory requirements, they must keep records of the temperatures of the vaccine. The customer wants the easiest way possible to comply.

The Solution: The MadgeTech VTMS temperature data logger is designed specifically for monitoring vaccines and meets all specific guidelines required for vaccine storage and monitoring.