KLH Threat Meter

KLHThreatMeter is an addon that records and displays everyone's threat much like a damage meter. In theory each player's threat can be quantified and compared. However, it will only display a player's threat if they are using this addon.

Using this threat meter will help reduce the risk of accidentally pulling aggro and assist with tank transitions. In my experience KLHThreatMeter was accurate enough for every encounter I tested it in. It's very helpful for at least the DPS classees and tanks to have this addon to help it generate accurate data. It will definately prevent shitty situations where, for instance, a warlock is doing too much damage but doesn't find out until it's too late.

Most guilds mandate a threat meter for, at least, tanks and dps classes. KHLThreatMeter does all that and more. Definately check it out.