Part Numbers


InTemp Bluetooth Temperature with Glycol Bottle (VFC/CDC) Data Logger

From $169.00 USD

Important Information

For automatic downloads and remote alerts, InTemp loggers require the optional InTemp CX Gateway. MORE INFORMATION

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InTemp CX402-VFCxxx (with glycol bottle) data loggers monitor temperatures in refrigerators and freezers for clinics participating in the CDC Vaccines for Children program as well as hospitals, clinics, and WHO sites. The loggers communicate wirelessly via Bluetooth to mobile devices. Using the InTemp app, you can easily view data, check logger status, set alarms, and create and share secure PDF reports for streamlined reporting and regulatory compliance. All loggers feature a built-in LCD display to view current and daily min and max temperatures, advanced audible and visual alarm capabilities for notification of temperature excursions, an internal sensor for ambient temperature monitoring, and a 3-year NIST Certification of Calibration (probe only).

With the optional CX Gateway, you can get remote notifications of temperature excursions and automatically download data from loggers within range of the device. Learn more about the CX Gateway here.

Models are available with a 2- or 4-meter external temperature probe attached to a glycol bottle used to insulate the probe and delay thermal response times.

Learn more about our compatible mobile and cloud solutions:


InTempConnect A cloud-based data command-center control for monitoring all loggers throughout your global supply chain

InTemp App A free mobile app that streamlines logger configuration and readout, and automatically uploads reports to InTempConnect

InTempVerify A free mobile app that manages user permissions and the activation of data downloads by anyone—anywhere, anytime


  • Complies with all CDC and Vaccine for Children (VFC) program requirements
  • Logger setup and download of data in seconds – without a PC or cable
  • Integrates with mobile and cloud platforms for a 21 CFR Part 11 compliant solution
  • +/- 0.5C accuracy for reliable temperature readings
  • Easy-to-read display with current and daily min/max temperatures
  • Battery-powered to guard against local power loss
  • Bluetooth transmission of data and alarm states
  • Several glycol bottle sizes with probe and cable-length options
  • Real-time alerts and automatic data downloads with optional CX Gateway device
  • Includes 3-year ISO 17025 calibration (probe only, per CDC guidelines)


Who It's For:

Required to follow Vaccines for Children & CDC requirements, specifically:

  • Probe in glycol
  • CDC/VFC compliant with 3 year NIST certificate (probe only)
  • GDP/GMP compliant
  • Frozen to refrigerated monitoring
  • For monitoring COVID vaccines


External Temperature Probe

-40° to 100°C
-40° to 212°F
±1.0°C from -40° to -25°C
±1.8°F from -40° to -13°F
±0.5°C from -25° to 80°C
±0.9°F from -13° to 176°F
±1.0°C from 80° to 100°C
±1.8°F from 176° to 212°F
0.024°C at 25°C
0.04°F at 77°F
NIST Calibration
Single point NIST calibration, probe only
Cable Length
2 or 4 meter (6.56 or 13.12 feet) flat ribbon cable
Probe Dimensions
Food-grade stainless steel probe with pointed tip, 53.34 mm (2.1 inches) long, 3.18 mm (0.125 inches) diameter

Temperature Sensor

-30° to 70°C
-22° to 158°F
±1.0°C from -30° to -22°C
±1.8°F from -22° to -8°F
±0.5°C from -22° to 50°C
±0.9°F from -8° to 122°F
±1.0°C from 50° to 70°C
±1.8°F from 122° to 158°F
0.024°C at 25°C
0.04°F at 77°F


Radio Power
1 mW
0 dBm
Transmission Range
Approximately 30.5 m (100 ft) line-of-sight
Wireless Data Standard
Bluetooth Low Energy (Bluetooth Smart)
Logger Operating Range
-30° to 70°C, 0 to 95% RH (non-condensing)
-22° to 158°F, 0 to 95% RH (non-condensing)
Logging Rate
1 second to 18 hours
Battery Type
Two AAA batteries, user replaceable
Battery Life
1 year, typical with logging interval of 1 minute. Faster logging intervals, remaining connected with the InTemp app, excessive report generation, numerous audible alarms, and paging all impact battery life.
128 KB (84,650 measurements, maximum)
Full Memory Download Time
Approximately 60 seconds; may take longer the farther the device is from the logger
LCD is visible from 0° to 50°C (32° to 122°F); the LCD may react slowly or go blank in temperatures outside this range
9.4 x 4.5 x 2.59 cm
3.7 x 1.77 x 1.02 inches
90.2 g
3.18 oz
Environmental Rating
CE Compliance Mark
FCC Compliance Mark
Australia New Zealand Compliance Mark
Japanese Telecom Compliance Mark

Passed RTCA DO160G, part 21H

Compatible items


InTemp CX Gateway
Compatible with all InTemp software solutions:
InTemp App
$285.00 USD


InTemp CX Temperature Logger (CX40x) Manual

InTemp CX400 series loggers measure temperature in indoor monitoring applications.

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Quick Start for the InTemp CX Temperature Logger (CX40x)

A quick start guide on how to set-up, configure, start, and deploy your CX400 series logger.

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