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Top of the range sensor beacon with temperature, humidity (SHT20) and acceleration (LIS3DHTR) sensors. Same as M52-SA except with a larger CR2477 battery, slightly larger case and range up to 180m using an extra power amplifier (PA). Comprehensive product that can be used in many different modes: 1 channel advertising, 2 channels advertising, 1 + 2 advertising, sensor advertising and Meeblue fixed data. The two main advertising channels can be iBeacon, Eddystone UID, Eddystone URL or user defined. When sensor advertising, the main channels are disabled and advertising includes a unique id, temperature, humidity and battery voltage.

The accelerometer is only used for motion triggered broadcast and has adjustable threshold (32mg to 2032mg). The accelerometer is not available in the advertising data.

The sensor detects  0 - 100% RH, ±3% typical, ±4.5% maximum (20% - 80% RH) and ±4.5% typical, ±7.5% maximum (0% - 100%), -40°C to 60°C 0.3°C / ±0.5°F typical, ±0.5°C / ±0.9°F maximum (0°C - 60°C), 0.7°C / ±1.3°F typical 1.2°C / ±2.2°F max (-40°C to 60°C).

This beacon can also work as a sensor logger storing up to 312K (80985 records) of temperature/humidity data with a configurable storage interval of 1-240 minutes. Can store up to 56 days with a 1 minute storage update, available as files from the configuration app. Takes about a minute to download 80895 records.

Uses the energy efficient nRF52810 for a longer battery life. Pressing button in centre of beacon case can be used for button triggered broadcast. LED light flashes when turned off and on.

Available in white or black only.

iOS and Android configuration app.

Can be used with the free MeeBlue Platform to collect data.

Supplied with details how to access technical and programming information.

Transmission iBeacon,Eddystone,acceleration
Battery size CR2477
Number of batteries 1
Battery included yes
Battery life 36 months @ 1s (depends on settings)
Size 43.7mm x 43.7mm x 14.5mm
Weight 25g
Waterproofing no
Includes sticker yes
Password to configure yes
Power range 4dBm to -40dBm
Buzzer no
Temperature sensor yes
Humidity sensor yes
Accelerometer sensor yes
Motion triggered broadcast yes
Operation modes sleep, configuration, normal
Button press yes
On off switch no
Chip NRF52
Standby current 2.3uA
Working current 5.3mA
Transmit distance 180m
Android SDK yes
iOS SDK yes
Android config app yes
iOS config app yes


  • £40.96

  • Ex vat: £34.13

Available Options

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  • Fast 1-2 day delivery by UPS courier
  • Expert English UK based support

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Tags: ibeacon, eddystone