Aruba, a Hewlett Packard Enterprise company AP-LAR-24 lightning arrester

Outdoor 2.4GHz Lightning Arrestor The AP-LAR-24 is an in-line N-type (1 x female, 1x male) lightning arrestor for Aruba APs and 2.4-GHz antennas. Weather-proof when installed, it protects AP radios from high-voltage lightning-induced transients. The AP-LAR-24 is specific to the 2.4-GHz band and provides additional filtering against other devices such as cellular band radios.