Wireless Temperature Monitoring

EDGE temperature sensors

The EDGE series delivers professional-grade temperature monitoring with WiFi and cellular connectivity and NIST calibration tracking. The EDGE WiFi temperature sensor combines high-accuracy NTC temperature measurement with WiFi connectivity, a cloud dashboard and a four-level alarm system, for applications from freezers to ambient storage.

Available models

Four EDGE models cover most temperature monitoring needs.

• EDGE Lite (not released yet): a compact min/max thermometer with a WiFi alarm.
• EDGE Thermo WiFi: a professional-grade WiFi data logger with ambient temperature, humidity and two external probes, with reports for HACCP and FDA programs.
• EDGE Thermo Cellular: everything in the WiFi model, plus cellular connectivity with automatic rollover and a built-in eSIM.
• EDGE Air: CO₂, temperature and humidity, with long-term exposure tracking and unlimited alarm rules.

No gateway, long battery life, four alarm levels

WiFi and built-in eSIM cellular options suit any site, with no gateway to install.

• Connectivity: WiFi or built-in eSIM cellular, chosen per site.
• Ultra-low power: patented power management extends battery life up to 3 years on 4 AA batteries on WiFi models (up to 2 years on cellular).
• Four-level alarm system: configurable L1 to L4 alert levels, with SMS, email and webhook notifications.

The LF Cloud platform

Every sensor reading syncs to the LF Cloud progressive web app on a schedule, with instant alarms. Set custom alarm thresholds, explore months of historical data with interactive charts and export options, and generate compliance reports from any device.

Get started

LoggerFlex is a Canadian manufacturer with US-patented technology and more than 50,000 devices deployed. Request a quote or find a distributor near you to size a system for one freezer or hundreds of sites.

Frequently asked questions

How does LoggerFlex wireless temperature monitoring work?

LoggerFlex sensors measure temperature continuously and send readings to LF Cloud over no-gateway WiFi or built-in global cellular. There is no hub to install. You set alarm thresholds, and the system alerts you instantly when a reading goes out of range.

How accurate are the sensors and are they calibrated?

Sensors ship with NIST-traceable calibration certificates, and LoggerFlex supports recurring recalibration on the schedule your quality program requires. Calibration records are stored with your data in LF Cloud for audits.

Will monitoring continue during a power or internet outage?

Yes. The patented battery (up to 3 years on WiFi models, up to 2 years on cellular) keeps devices running through power loss, and on cellular models built-in cellular keeps data flowing when WiFi is unavailable, so excursions are still captured and alarmed. WiFi models keep recording locally and upload once WiFi is back.

How am I notified when a temperature goes out of range?

LoggerFlex sends alarms at once by SMS, email, and push the moment a reading crosses a configured limit, to every recipient at the same time, and repeats them about once an hour while the alarm lasts.