Free delivery
on orders over £100
Trusted since 1980
to deliver great service
We accept PayPal
and all major credit cards

InTemp CX501 Bluetooth Low Energy 15 Day Single-Use Temperature Data Logger

Brand: Onset InTemp
Product Code: CX501
InTemp CX501 Bluetooth Low Energy 15 Day Single-Use Temperature Data Logger

Availability: In stock

SKU: CX501

Product Description

The InTemp CX501 Bluetooth® Low Energy data logger is a single-use logger that records temperature data for up to 15 days. Designed for Cold Chain and CRT shipments, the CX501 is ideal for parcel shipments, clinical trials, and expedited risk pharmaceutical shipments.

Using the InTemp app on your mobile device, you can easily configure the CX501 with one of multiple preset configurations, or set up a custom configuration. The logger has a built-in alarm to alert you to excursions. And logger reports can be quickly downloaded to your phone or tablet and uploaded to an InTempConnect® account, where you can analyse and export data as needed.

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

A 3-Point Certificate of Calibration, valid for one year from date of purchase, provides assurance that the data can be trusted when making important product-disposition decisions.


Key Features of the InTemp CX501

  • Integrates with mobile and cloud platforms for a 21CFR Part 11 compliant solution

  • Enables fast, remote data transfer; ideal for clinical logistics

  • Eliminates need to open sealed containers to retrieve data

  • Real-time alerts and automatic data downloads with optional CX Gateway device

  • Shortens logger-handling times; no PC or cables required

  • Ensures secure data via encrypted technology

  • Meets GDP requirements for NIST traceable calibration.

Buying in bulk, or just want some helpful advice?
Call +44 (0)1243 558270, click on the webchat box below, or fill out our contact form.

Additional Information

Additional Information

Country of Manufacture United States
Measurements Temperature
Data Available By Bluetooth
Typical Applications Cold Chain, Datalogging, Life Sciences, Medical, Pharmaceutical, Temperature

For full specifications for this product, please see the product manual under the Resources tab.



Logger Operating Range

-10° to 70°C (-14° to 158°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)

Logging Rate

1 second to 18 hours

Time Accuracy

±1 minute per month at 25°C (77°F)


CR2032 (CX501) 3V lithium, not replaceable. Battery for CX501 lasts for duration specified when logger is used within the 1-year shelf life. Faster logging intervals, remaining connected with the InTemp app, excessive downloads, and paging may impact battery life. 


Single Use


15 Days

Shelf Life

Up to 1 year


8,800 measurements 

Full Memory Download Time

Approximately 30 seconds; may take longer the farther the device is from the logger


6.9 x 4.5 x 1.1 cm (2.71 x 1.76 x 0.42 inches) 


25.5 g (0.90 oz)

Environmental Rating



The CE Marking identifies this product as complying with all relevant directives in the European Union (EU).



Temperature Sensor

Sensor Range

-10° to 70°C (-14° to 158°F) 


±1.0°C from -10° to -5°C (±1.8°F from -22° to 23°F)
±0.5°C from -5° to 50°C (±0.9°F from 23° to 122°F)
±1.0°C from 50° to 70°C (±1.8°F from 122° to 158°F)


0.04°C (0.072°F) 


<0.01°C (0.018°F) per year

Response Time

5 minutes typical to 90% in open air moving 1 m/s, unmounted 

Power Battery Only

Related Products