The SB-24 does not have a built in remote sensor, which I'll simply call a "slave". Nikon added this most useful feature on the SB-26, the SB-50, the SB-80, and the latest generation of iTTL units, with the exception of the SB-600, which has only iTTL wireless connectivity. Just a reminder: I am talking about simple devices that respond to a sudden change in ambient light intensity. Nikon calls this simple slave the SU-4 Mode in current production speedlights.
There are two interface ports on the SB-24's side (Photo #1). Later Nikon streetlights have a snap-on rubber cover to protect them, so they are easily overlooked. The upper port accepts a 3-pin interlace used for the first iteration of multiple TTL flash exposures, while the lower is an industry standard PC female connector. It's this lower port that interests us.
This combination is very sensitive. In a very informal outdoor test, the sensitivity of Wein Peanut came was on the same level as the built in SU-4 sensor on the SB-800 when properly aligned. At the time of the writing, adding this slave capability to your SB-24 (or SB-25) will cost you $14.50 for the adapter and $14.95 for the Peanut , which is ironic because this costs more than I paid for the speedlight. But if you think about how much the SB-24 would cost in 2015 dollars, it seems quite affordable, considering the performance level of the Wein.