Unfortunately, the WTAGEX has been discontinued, check out the Clever Logger brand for more alternatives.

When it isnt convenient to measure temperature with a full size sensor, the Wireless Sensor with External Temperature Probe is for you. Place the sensor somewhere convenient, and then use the included probe to measure temperature inside of your products, or in more convenient locations.

These are the Wireless Reed Switches with an external 1m probe installed. The tip is a 3cm stainless steel probe.
These are sensors only and not loggers. If they are out of range of the Tag Manager they will NOT store readings. Features:– Programmable sample rate – Wireless connectivity – Get alarms and notifications when the temperature falls out of your desired range*. – iOS and Android app available for easy setup and notifications. – Long battery life. – -30 C to 80 C temperature range.