UHPPOTE Wired Emergency Fire Alarm Station 9-28VDC Conventional Dual Action Manual Call Point

Used this to build a custom child’s toy in a picture frame and wired to a $10 “KKMoon” siren. It works great and made a unique birthday present. I just wired to the switch, but there are some diodes and an LED in there for when this is used with a “real” system. My only complaint is the process for turning it off is sometimes awkward since the door hangs on the pull mechanism and you have to wiggle the key a little. But in a real scenario you probably would not be opening the door very often!

Ready to install

I put this on a piece of wood with the siren and LED strobe light just so I can pull it any time I like for the fun of it! It works real good wires up great I have it hooked to 4 18650 batteries with a charge on it to keep it charged it is just used at a toy, but if you were replacing one of yours with it, it works great easy install has two keys. Has Loop in connections for power and to hook up another to another unit else where. very easy pull time and easy to reset if you have the key. Worth buying and I would consider buying another one!

I used the UHPPOTE Wired Emergency Fire Alarm Station 9-28VDC Conventional Dual Action Manual Call Point and the UHPPOTE Wired 12/24VDC Sound and Light Fire Alarm Warning Strobe Siren Horn. The Fire Alarm Station is the component to switch the Fire Alarm Warning Strobe Siren Horn on and off. You have to get a 24 volt power supply (HitLights 24 Watt (2 Amp) LED Power Supply) and wire to connect the two devices together. It is a very simple circuit. One wire from the 24 v supply goes to the Fire Alarm Station’s green terminal block, which is connected to a switch. The other side of the switch goes to the siren and strobe blue terminal block. Then the other side of the siren/strobe goes to the other wire of the 24 volt ps. Since the 24 volt ps has polarity it did not work the first time so i changed the – and + wires of the ps and it fired off. Very loud. Please pics on my review.

My son has been fascinated with fire alarms ever since his first fire drill at school. To satisfy his curiosity I decided to build him his own fire alarm. I bought a cheap siren/strobe and this pull station and connected them with a couple op-amps and a relay in lieu of a $1500 control panel.So, the inside of this thing is a 4-way bridge rectifier. Even though there is a “+” and a “-“, it wouldn’t matter if you were to wire it backwards. The circuit is open normally, and basically passes through 2 diodes, a red LED and 1k resistor when pulled. I didn’t want to dim that LED (it’s visible externally when pulled) so I connected a 100 ohm resistor in series and amplified the voltage drop across that 100 ohms up to the point where it could switch a relay and drive the strobe. My son is happy, and this pull station worked well for me. Unfortunately I can’t tell you how it would work with a proper control panel.