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SmartSense B2 Sensor for Temperature Danger Zone Monitoring

The SmartSense B2 Sensor is a remote temperature sensor designed to alert you of temperature danger zones in commercial refrigerators and freezers. B2 Sensors collect temperature and humidity data every 10 minutes and report this data to the SmartSense cloud dashboard via a SmartSense BZ Gateway.

bluetooth temperature sensors

Compact commercial Bluetooth® 5.0 temperature and humidity sensor

NSF rated enclosure that is safe for food contact

Store-and-forward capable and over-the-air upgradable

Technical Specifications

SmartSense B2 Sensor Technical Specifications

Product SKU



2” x 2” x 0.71” (51mm x 51mm x 18mm)

Communication Range

300 feet*

Communication Interval Default

10 minutes

Communication Method

Bluetooth® 5.0

Temperature Operating Range

-20°C to 60°C (-4°F to 140°F)

Relative Humidity Operating Range

0% to 95% (non-condensing)

Altitude Operating Range


Pollution Degree

2, Normally only nonconductive pollution occurs. Temporary conductivity caused by condensation is to be expected.

Temperature Measurement Accuracy

±0.5°C (1°F) max

Battery Life

Up to 4 years**


NSF food contact and water resistant***


1 Year

* Actual communication range will depend on RF environment

** Actual battery life will depend on communication interval and environmental conditions including operating temperature

*** Manufacturing test data indicates that this device will maintain normal functionality after being submerged under one meter of water for 30 minutes. These statements have not been independently verified by a laboratory.

Learn more about SmartSense B2 Sensors by downloading our datasheet

Commercial fridge and freezer monitoring for enterprise visibility

SmartSense connects your enterprise operations to give visibility into the product safety compliance and execution performance at all your locations. Our end-to-end solution is designed and built to ensure implementation, performance, and support without compromise.

1 SmartSense Z Sensor and B2 Sensor

Wireless Sensors and Dataloggers

Calibrated sensors and data loggers are added to your critical assets and environments to record condition data. This data is used to trigger alarms when there is a problem and provide insight into the performance of your equipment.

2 SmartSense NEXT App and Bluetooth Probe

Digital Checklists and Tasks

Digitize HACCP compliance, daily sanitation logs, hospital crash cart audits, and more to take the guesswork out of SOP management.

3 SmartSense BZ Gateway

Cellular Gateways

Transfer data and provide a secure, self-contained, drop-in network connection with no IT support required. If power fails, our battery-backed gateways store sensor readings until connectivity is restored.

4 SmartSense Dashboard and NEXT App

Cloud Dashboard

Gain real-time oversight of your operations and business initiatives and actionable insights into compliance, site performance, and risks.