The Model AP3 Wireless Thermo-Anemometer Probe measures air velocity, air flow, and temperature when combined with the Model UHH6 Universal Handheld. In order to prevent damage to the sensing element, the probe has a protective sleeve that slides over the sensor when it is not in use. Markings on the probe allow users to know the insertion depth to obtain better accuracy when traversing the duct.

These probes use a Bluetooth Low Energy (BLE) signal for effortless connection and low power consumption. Wireless probes can take measurements up to 50 feet away from the UHH6 or compatible handheld.

A bicolor LED flashes on the handle of the probe to indicate communication status with the handheld device. The battery is rechargeable via the mini-USB connector on the bottom of the probe.