Data Logger

Disc Bluetooth Temperature Sensor & Data Logger | ±0.1°C Accuracy

Simple. Reliable. Affordable.

The Disc Mini Temp is a compact Bluetooth temperature sensor and data logger designed for everyday monitoring needs. This wireless temperature logger delivers accurate, reliable readings for cold chain compliance, food storage, pharmaceutical monitoring, and general temperature tracking—all at an accessible price point.

Small Size. Big Capability.

At just 33mm (1.3") diameter, store up to 20,000 temperature readings with Bluetooth range up to 75m (246ft). Connect with the free bmLogger app to view real-time temperatures, download historical data, and export CSV reports for HACCP compliance and quality assurance documentation.

Versatile Temperature Monitoring

Ideal for refrigerator and freezer monitoring, cold chain logistics, food service, laboratory environments, and home brewing. Add a BM Gateway for 24/7 automated cloud monitoring with instant temperature alerts when thresholds are exceeded.

$39.00
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Key Features

Bluetooth 4.3

Bluetooth Low Energy technology for reliable connectivity.

1-Year Battery

User-replaceable CR2032 coin cell battery.

High Precision

±0.1°C temperature accuracy for reliable monitoring applications.

20K Data Points

On-device storage for up to 20,000 readings with configurable intervals.

Free Mobile App

iOS and Android apps for real-time monitoring and data export. APIs to integrate into your own apps or systems.

Internet Enabled

Can be internet enabled by utilizing the BM Gateway and bmCloud.

Dimensions 33mm/1.30" diameter × 9.5mm/0.37"
Weight 12g / 0.4oz
Material Polycarbonate/TPE
Temperature Range -40°C/-40°F to +125°C/257°F
Temperature Accuracy ±0.1°C/±0.2°F (typical)
Bluetooth Chip Nordic nRF52832 based
Sensor Chip Sensirion STS4x View Specs
Bluetooth Version 4.3 Low Energy
Operating Range Up to 75m/246ft (line of sight)
WiFi Gateway Compatible Yes
Battery Type CR2032 (replaceable)
Battery Life Up to 1 year
Memory Up to 20,000 readings (circular buffer)
Configurable Logging Interval 60 seconds to 12 hours
Customizable Yes

Frequently Asked Questions

Download the free bmLogger app from the App Store or Google Play, enable Bluetooth on your phone, and the app will automatically discover your Disc Mini. Follow the in-app setup guide to configure logging intervals and start monitoring.

The Disc Mini is our compact, entry-level sensor (33mm vs 37mm) with temperature monitoring, 20K data point storage, and a CR2032 battery lasting up to 1 year. The Disc Maxi offers alerts, a larger CR2477 battery for 5-year life, up to 100K data points, and Bluetooth 5.3 for extended range.

The CR2032 battery typically lasts up to 1 year with a 15-minute logging interval. Yes, the battery is user-replaceable—simply twist the back cover to access and replace with a standard CR2032 coin cell.

The Disc Mini supports configurable logging intervals from 1 second to 24 hours. Choose shorter intervals for detailed monitoring or longer intervals to maximize the 20,000 data point storage capacity.

Yes, the bmLogger app can discover and manage multiple Disc Mini sensors. View all your sensors on a single dashboard, switch between them easily, and export data from each device individually or together.

Open the bmLogger app, connect to your Disc Mini, and tap Export. Data is exported as a CSV file that you can email, save to cloud storage, or print. For automated data collection, pair with the BM Gateway and bmCloud.

Yes, with ±0.1°C accuracy, a -40°C to +125°C range, and 20,000 data points of storage, the Disc Mini meets requirements for food safety monitoring, cold chain logistics, and HACCP compliance. Add a calibration certificate for full audit trail documentation.