Based on this product's specifications, here are some alternatives and similar models
Omni-directional antenna DeLOCK 89899
Summary description:
The DeLOCK 89899 is an omni-directional antenna with a gain of 2 dBi, operating in the frequency range of 0.694 - 0.96/1.71 - 2.7 GHz. It features a 50 Ω impedance and SMA connector type. With a Voltage Standing Wave Ratio (VSWR) of 2-3, this antenna is designed for reliable performance in various applications, providing enhanced signal reception and transmission capabilities.