Wheelock ES-DL1-WS-24DC Electronic Fire Alarm Horn Strobe (From 1985) 

Pretty nice! Hard to believe this device is almost 40 years old.

This ES was probably a first-gen that can only sound its horn tone. These more than likely would've been around prior to the EH release. After the EH was released in 1988 may be when the ES became a tri-tone. I guess it makes sense since I believe ES would mean Electronic Sounder and EH would mean Electronic Horn. Only major difference being the ES having a speaker and the EH using a piezo.

I’ve never heard these. They sound cool

It looks like a chime strobe

Now we know where the SpectrAlert Advance's jackhammer tone came from.

Really cool old device!

I saw this one on Ebay lol! These sound so cool

Basically eh probably with regular speaker instead of piezo that’s why the tone is so different

Wheelock does it again in the 80’s with an electronic horn! I wonder if this was the first to market? Certainly earlier than the System Sensor MA/SS, or the PA400. Maybe the GX90 too…

FINALY SOME ONE WHO LIVES NEAR ME I AM EISP TERRCE

Cool

Can you do wheelock es dl1 vs ehs dl1 please?

speaker strobe making loud noise

Christ, I forgot how awful these things sound~