Data Logger

Disc Mini Waterproof Bluetooth Temperature Sensor IP67 | Cold Chain Logger

Professional Waterproof Temperature Monitoring

The Disc Mini IP68 is a compact, waterproof Bluetooth temperature sensor and data logger built for demanding environments. With IP67-rated protection, this wireless temperature logger delivers reliable monitoring in cold storage, commercial freezers, food processing facilities, and anywhere moisture or washdowns are part of daily operations.

Compact. Powerful. Compliant.

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 data, and export CSV reports for HACCP compliance and cold chain documentation.

Ready for Any Environment

Ideal for pharmaceutical cold storage, food service refrigeration, brewery monitoring, and agricultural applications. Add a BM Gateway for 24/7 automated cloud monitoring with temperature alerts.

$49.00
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Key Features

Bluetooth 4.3

Bluetooth Low Energy technology for reliable connectivity.

1-Year Battery

Factory-sealed CR2032 battery for waterproof integrity.

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.

IP68 Waterproof

Fully sealed construction for submersion in water and harsh wet environments.

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
IP Rating IP68 (waterproof)
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 (sealed, non-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

IP68 is the highest level of dust and water protection available. The "6" means completely dust-tight, and the "8" indicates protection against continuous submersion in water beyond 1 meter depth. This makes the sensor suitable for outdoor installations, wet industrial environments, and underwater applications.

The Disc Mini Waterproof is rated for continuous submersion beyond 1 meter depth. It's suitable for aquariums, ponds, swimming pools, and marine environments where the sensor may be partially or fully underwater.

The battery is factory-sealed to maintain the IP68 waterproof integrity. Opening the case would compromise the water resistance. The sealed CR2032 battery provides approximately 1 year of operation—after which the sensor should be replaced for continued monitoring.

Ideal uses include outdoor weather stations, greenhouse monitoring, aquarium and pond temperature tracking, marine and boat refrigeration, swimming pool monitoring, food processing areas with washdown requirements, and any location exposed to rain, humidity, or water spray.

The Bluetooth range remains up to 75 meters in open space. However, water absorbs Bluetooth signals, so range is reduced when the sensor is underwater. For submerged applications, position the BM Gateway or your phone within closer proximity for reliable data transmission.

Both sensors share the same dimensions (33mm × 9.5mm), ±0.1°C accuracy, and 20,000 data point storage. The key differences: the waterproof version has IP68 protection but a sealed (non-replaceable) battery, while the standard Disc Mini has a replaceable battery but no water protection.

Yes, the Disc Mini Waterproof operates from -40°C to +125°C and is ideal for freezers, cold rooms, and refrigerated transport where condensation or frost may be present. The sealed design prevents moisture damage during defrost cycles.