What PSI is this supposed to run at?

I've ran it at a low psi and it sounds good. I've put 90psi to it aswell bellows like no other. But I wouldn't run it over 90. Seems like it's limit.

Where do you hook up the line coming from the compressor I don't see no fitting

I installed a t- fitting on a pressure relief valve port, ran the air hose to trumpets on one side and installed the pressure relief on the other side.

what is the solenoid in the middle for? Is that a small compressor or do I hook up an air hose to the middle piece?

It's a solenoid not a compressor you hook the airline from a onboard air compressor up to it. But I suggest looking at other horns these are not that great I returned them because they are not loud and are a high pitched sound and ne louder than a regular car horn

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4 Trumpet Air Horn Train Horn 12V 178dB Super Loud Black Four Trumpet Car Air Horn for Cars Trucks Boats SUV Motorcycles Vehicles

Product ID: 473647659

Details

Brand
DriSentri
Color
Black
Fit Type
Universal Fit
Material
Metal
Voltage
12 Volts

🔊178dB super loud blast

🚗Universal fit for vehicles

⚙️Durable chrome-plated zinc

Description

🚨 Make your presence impossible to ignore with the ultimate 4-trumpet air horn!

BUILT TO LAST - Chrome-plated zinc construction ensures weatherproof durability and long-lasting performance.
PLUG PLAY READY - Includes all mounting hardware for a straightforward, hassle-free installation.
UNMATCHED SONIC POWER - 178dB sound level commands attention in any traffic or emergency scenario.
COMPACT YET COMMANDING - Four trumpet design delivers a bold, unmistakable train horn tone without bulky size.
VERSATILE VEHICLE COMPATIBILITY - Fits cars, trucks, boats, motorcycles, SUVs, and more — your all-terrain sound solution.

The 4 Trumpet Air Horn delivers a thunderous 178dB blast through four chrome-plated zinc trumpets, engineered for universal fit across cars, trucks, boats, and motorcycles. Designed for durability and ease of installation, this 12V horn kit includes mounting hardware and offers a powerful, unmistakable train horn sound that elevates safety and style on the road.

Specifications

ASIN	B0B2L9MD3V
Automotive Fit Type	Universal Fit
Best Sellers Rank	#944,231 in Automotive ( See Top 100 in Automotive ) #552 in Air Horns #21,865 in Electrical
Brand	DriSentri
Brand Name	DriSentri
Color	Black
Compatible with Vehicle Type	Truck, Passenger Car, Motorcycle, Golf Cart, UTV, Scooter, ATV, Tractor
Customer Reviews	4.1 out of 5 stars 130 Reviews
Fit Type	Universal Fit
Manufacturer	DriSentri
Manufacturer Part Number	EPC_HOR_00U
Material	Metal
Material Type	Metal
Noise Level	178 db
Number of Items	1
Style	Classic
Style Name	Classic
Unit Count	4 Count
Voltage	12 volts

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