The VTMS is a wireless vaccine temperature monitoring system, recording temperatures as low as -100 °C (-148 °F). Includes ISO17025 accredited calibration certificate.
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What’s Included:

  • RFTCTemp2000A Wireless Thermocouple Temperature Data Logger
  • Glycol Bottle (optional)
  • Power Supply


MadgeTech recommends annual calibration.


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The VTMS Includes:
(1) RFTCTemp2000A: Wireless Thermocouple Temperature Data Logger
(1) Type K Thermocouple
(1) Glycol Bottle (optional)
(1) Power Supply

The VTMS is a wireless temperature data logging system specifically designed to continuously monitor temperature-sensitive vaccines/pharmaceuticals in refrigerators, freezers and coolers. Without the optional glycol bottle, the VTMS can measure and record temperatures as low as -100 °C (-148 °F).

This device features an LCD screen which provides instant access to current readings, minimum, maximum and average statistics. Equipped with user-programmable alarms, the VTMS will alert or notify users via email or text when thresholds are breached, allowing users to take immediate action. For refrigeration storage, the RFTCTemp2000A connects to a glycol bottle, providing temperature buffered readings.

The VTMS is compatible with the latest MadgeTech 4 Software making starting, stopping, and downloading simple and easy. Graphical, tabular, and summary data is provided for analysis and can be viewed as customizable engineering units.

The VTMS is also MadgeTech Cloud Services ready, providing users the ability to monitor data remotely on any smartphone, tablet or internet enabled device.

Note: RFC wireless interface required.

Contact us to customize this product


Memory16,128 readings (all channels enabled)
Reading Rate 1 reading every second up to 1 reading every 24 hours
Baud Rate250,000
Cold Junction Compensation Automatic based on internal channel
Battery Life3 years typical at 1 minute reading rate
MaterialABS Plastic
Dimensions3.0 in x 3.5 in x 0.95 in (76.2 mm x 88.9 mm x 24.1 mm) - Data logger only
Weight1.1250 LBS
Operating Environment -20 °C to +60 °C (-4 °F to +140 °F), 0 %RH to 95 %RH non-condensing
Required Interface Package RFC1000 (wireless); USB to Mini USB Cable
ApprovalsUS (FCC), CA (IC), CE, South Korea (KCC), China (CMIIT), Japan (LCIE)


Internal Channel Temperature SensorSemiconductor
Internal Channel Temperature Range -20 °C to 60 °C (-4 °F to +140 °F)
Internal Channel Temperature Resolution0.1 °C (0.18 °F)
Internal Channel Temperature Calibrated Accuracy ±0.5 °C
Remote Channel Temperature SensorType K Thermocouple (Included)
Remote Channel (Thermocouple) Temperature Range-100 °C to +80 °C (-148 °F to +176 °F)
Remote Channel (Glycol Bottle) Temperature Range-50 °C to +80 °C (-58 °F to +176 °F)
Remote Channel Temperature Resolution0.1 °C (0.18 °F)
Remote Channel Temperature Calibrated Accuracy±0.5 °C


VTMS Product User Guide
VTMS Specification Sheet

RFTCTemp2000A Product User Guide
RFTCTemp2000A Specification Sheet

VTMS Brochure

Glycol Safety Data Sheet

Support Videos

VTMS | Product Overview

VTMS | Live Overview

VTMS | VFC Requirements

VTMS | Vaccine Monitoring Solutions


Part Numbers

VTMS (30ml) — 901858-00
VTMS (60ml) — 901903-00
VTMS (250ml) — 901861-00
VTMS (No Glycol Bottle) — 902310-00

The VTMS replaces the following products:
Therm-A-Lert with Bottle — 901708-00
Therm-A-Lert 250mL Bottle — 901703-00
Therm-A-Lert 60mL — 901712-00


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