So I’ve been looking at simplex 4903 horn/strobes, and I’m having a problem determining which models have electromechanical horns, and which ones have the newer electronic “screecher” horns. Could someone provide me with a list or something I could use as a reference? Thanks!
Here’s a list of all non-addressable models with a free-run option that I could find. Feel free to reply with any that I missed. I labeled the most common models with an asterisk.
Electromechanical:
4903-9215 (red, 30cd)
4903-9216 (red, vertical, 30cd)
4903-9217 (red, 110cd)
4903-9218 (red, vertical, 110cd)
4903-9219 (red, 15cd) *
4903-9220 (red, vertical, 15cd)
4903-9221 (white, 15cd)
4903-9222 (white, 30cd)
4903-9223 (white, ceiling-mount, 15cd)
Electronic:
4903-9236 (red, 15cd) *
4903-9237 (red, 30cd)
4903-9238 (red, 110cd)
4903-9239 (red, vertical, 30cd)
4903-9240 (red, vertical, 110cd)
4903-9241 (white, 15cd)
4903-9242 (white, 30cd)
Electronic (with TrueAlert style horn):
4903-9252 (red, 15cd) *
4903-9253 (red, 30cd)
4903-9254 (red, 110cd)
4903-9255 (white, 15cd)
4903-9256 (white, 30cd)
4903-9257 (red, vertical, 15cd)
4903-9258 (red, vertical, 110cd)
9255 is a red vertical 15cd model
9256 is the 110cd model of the 9255
The 9223 is a 110CD white wall mount device. I have the manual for the 4903 mechanical horn strobes and it’s says it’s a wall mount 110cd device
Topic is very old. Locked due to bumping.