NewPing Library: HC-SR04, SRF05, SRF06, DYP-ME007, Parallax PING))) - v1.7

Would NewPing work with a SRF08?

I've been using a HC-SR04 but I've looking for something more accurate at longer distances, to sense body movement accurately up to 3m, is the SRF08 much better?

Or any other suggestions?

The HC-SR04 recognises a body up till about 1.2m, then further away the sensor reports 0, as I guess its sending out a signal but not receiving it back.... but if I hold up a board of wood it sends back an accurate reading up to about 3m