Logger with External Temperature Probe

$149.00$169.00 inc GST


Monitor liquid temperatures in real time

If you are logging temperatures in harsh conditions, such as outdoors or in liquid, you can use the Sensor with External Probe.

Place the sensor somewhere convenient, and then use the attached probe to measure temperature.

Waterproof probe

IP64 Rated waterproof probes suitable for immersion in liquid

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 12-18 months.

-40°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…


  • Battery Type: CR2450 (replaceable)
  • Battery Life: 12-18 months
  • Range: up to 50m line of sight
  • Protocol: Bluetooth 4
  • Temperature Range: -40°C (-40°F) to 80°C (176°F)
  • Accuracy: +/-0.5°C
  • Probe Length: 1m or 5mm

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.

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