• -50 to -79 dBm, then it’s generally considered great signal (4 to 5 bars).
• -80 to -89 dBm, then it’s generally considered good signal (3 to 4 bars).
• -90 to -99 dBm, then it’s generally considered average signal (2 to 3 bars).
• -100 to -109 dBm, then it’s generally considered poor signal (1 to 2 bars).
• -110 to -120 dBm, then it’s generally considered very poor signal (0 to 1 bar). In case of 1-3 bars, you need to purchase a Power Line product.

In case of 4-5 bars – Standard unit will work.