Wireless Temperature Logger

Log temperature and humidity even when not connected to the cloud.

$129.00 inc GST

A constant record of temperature, even if the power goes out

The logger features in-built backup memory. If the sensor loses contact with the gateway, it keeps recording temperatures. When the connection to the gateway is re-established, the sensor will automatically upload its stored data.

This makes this model ideal for sensitive applications where results must be recorded with no gaps in the data e.g. a vaccine fridge.

Internal Backup Memory

Enough for around a month of recordings at 5 minute intervals

Alarms and Notifications

Get alarms and notifications when the temperature falls out of your desired range*


No messy or expensive cabling

iOS and Android app

iOS and Android app available for easy setup and notifications

Replaceable Battery

Battery will last up to 12 months.

-30°C to 80°C

Wide temperature range suitable for fridges, freezers and room temperature.

* NOTE: when the logger is out of range of the gateway or the gateway loses its connection to the internet, you can receive a notification, but you will not receive temperature alerts.

Common questions

Yes. This system requires a gateway in order to save temperature data to the internet. However, one gateway can handle connections from dozens of loggers at once, provided they are all in range.

No. The logger transmits data using Bluetooth. This is completely different to the wi-fi connection.

When the power to the gateway goes out, the internet server will recognise that it has lost connection to the gateway and signal an alert.

Depending on how you have configured your account, this can do a number of things including sending an email and sending a notification to your phone.

Your loggers will continue to log temperatures and save that data to their internal memory. It can save over 15,000 readings – about a month of readings five minutes apart.

When the connection from the gateway to the internet is re-established, the server will trigger another set of actions. The data saved in each logger’s memory will be uploaded to the internet so there should be no gaps in the record.

The battery is a fairly standard 3V coin-cell battery (Model CR2450). You can buy them at supermarkets, pharmacies, hardware stores, etc for a few dollars.

The battery lasts 12 to 18 months. After 12 months, the system will send out a low battery alert to remind you to change the battery.

Replacing the battery is quite a quick process, but it can be a bit fiddly.

Here is a video that shows the process…


  • Memory: 15,000 recordings
  • Battery Type: CR2450 (replaceable)
  • Battery Life: 12-18 months
  • Range: up to 50m line of sight
  • Protocol: Bluetooth 4
  • Operation range: -20°C (-4°F) to 60°C (140°F)
  • Accuracy: +/-0.5°C 

NOTE: This product requires a gateway to be able to operate.

FCCID: ZGW05. FCC Compliance Statement: This device complies with part 15 of the FCC rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. Caution: Any changes or modification cautions to this device not explicitly approved by manufacturer could void your authority to operate this equipment.