New P1 Plus Industrial Beacon

We have the new Minew P1 Plus in stock. It’s a sensor beacon designed for rough environments and is IP68 waterproof, IK09 shockproof and has a wider than normal temperature rating due to use of the included industrial ER14250H lithium battery.

This beacon has temperature and accelerometer sensors. It’s turned on and off via a magnetic switch. As with other Minew beacons it advertises up to 6 channels that can be iBeacon, Eddystone UID, Eddystone URL, Eddystone TLM and device info. 

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Fitness Band with Heart Rate and Body Temperature

We have a new beacon, the 1810G in stock that monitors both heart rate and body temperature.

Heart Rate and Temperature

This fitness band can provide real time steps, heart rate or temperature. It also stores the historical data. Data is obtained by connecting programmatically to the device, via Bluetooth GATT, from Android, iOS or other Bluetooth LE device.

Can be set up to provide for social distancing reminders, tested every minute, when two bands of this type come close together (2m).

Being programmable it allows for new usecases such as monitoring groups of people. This might be used, for example, to identify those with an elevated body temperature.

There’s also an iOS and Android app for normal consumer use.

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New Kaipule Bluetooth Sensors

We have a new range of Kaipule Bluetooth sensors that while intended for OEM alarm systems are stand-alone as regards Bluetooth. They are sensor beacons, sending out Bluetooth LE advertising when events occur.

There’s a gas detector, smoke detector, temperature/humidity sensor, water leak sensor, door sensor, PIR movement sensor and remote control.

Bluetooth Temperature/Humidity Sensor
Bluetooth PIR Sensor

All, apart from the remote control, have a low battery report when the battery is low and a heartbeat every 10 minutes.

The style and functionality of the Kaipule products make them particularly suited to smart building applications.

Detecting Temperature With Beacons

Some sensor beacons can be used to monitor temperature. The first thing to consider when comparing temperature beacons is whether they have a dedicated hardware temperature sensor. Some beacons have a temperature sensor inside the main chip (System on a Chip – SoC) that’s less accurate and has less precision. The sensor is mainly there to give an indication of the chip temperature, not the ambient (outside the beacon) temperature. Most beacons only transmit for the order of 1ms every 10 to 5 seconds and enter a very low power state the remainder of the time. This means they not only use low power but don’t significantly heat the SoC. This means the SoC roughly tracks the outside temperature.

In our sensor beacon listings, when we say a beacon has a temperature sensing it has a separate hardware sensor, usually the Sensirion SHT20, providing more accuracy and precision than the sensor in a SoC. Some of our beacons, such as the Minew i3 and i7 have an internal SoC temperature sensor that’s readable but we don’t classify that as a sensor beacon.

The next thing to consider is the casing. In order to quickly track ambient temperature, the casing needs to be open somewhere and usually have a hole. Beacons that say they are waterproof and have temperature sensing won’t track ambient temperature well.

We have had customers use temperature sensing beacons in scientific situations and where they need to periodically calibrate sensing equipment. How do you calibrate temperature sensor beacons? The SHT20 is has a long term drift of only <0.04 deg C/year (the humidity reading vaies difts by <0.5%RH/year) so it doesn’t need calibration for most situations. However, if you need better than this, or check calibration, you will need to periodically calibrate in the software of the device (usually an app) that receives the beacon sensor data.