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Sensor beacon with temperature, humidity (SHT20) and acceleration (LIS3DHTR) sensors. Same as M52-SA except with a larger CR2477 battery and slightly larger case. 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 URI 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 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 nRF52832 for a longer battery life. Pressing button in centre of beacon case turns off and on and can also be used for button triggered boradcast. LED light flashes when turned off and on.

Available in black only.

iOS and Android configuration app.

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 no
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 yes
Chip NRF52832
Standby current 2.3uA
Working current 5.3mA
Transmit distance 70m
Android SDK no
iOS SDK no
Android config app no
iOS config app yes

M52-SA Plus

  • Brand: Meeblue
  • Product Code: M52-SA Plus
  • Stock: 100
  • £31.08

  • Ex vat: £25.90

  • No waiting weeks - delivery from stock
  • 0% VAT for VAT registered EU customers
  • 0% VAT for non-Europe customers
  • Fast 1-2 day delivery by UPS courier
  • Expert English UK based support

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Tags: ibeacon, eddystone