---
product_id: 109832386
title: "CompStudio 120-150 PSI Air Pressure Switch Tank Mount Type Thread 1/4\" NPT 12V/24V for Train/Air Horn 1/4inch"
brand: "compstudio"
price: "RM104"
currency: MYR
in_stock: true
reviews_count: 8
url: https://www.desertcart.com.my/products/109832386-compstudio-120-150-psi-air-pressure-switch-tank-mount-type
store_origin: MY
region: Malaysia
---

# Dual voltage 12V/24V compatible Universal 1/4" NPT thread fit Precision 120-150 PSI control CompStudio 120-150 PSI Air Pressure Switch Tank Mount Type Thread 1/4" NPT 12V/24V for Train/Air Horn 1/4inch

**Brand:** compstudio
**Price:** RM104
**Availability:** ✅ In Stock

## Summary

> 🚂 Elevate your air system game with precision and power!

## Quick Answers

- **What is this?** CompStudio 120-150 PSI Air Pressure Switch Tank Mount Type Thread 1/4" NPT 12V/24V for Train/Air Horn 1/4inch by compstudio
- **How much does it cost?** RM104 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.my](https://www.desertcart.com.my/products/109832386-compstudio-120-150-psi-air-pressure-switch-tank-mount-type)

## Best For

- compstudio enthusiasts

## Why This Product

- Trusted compstudio brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Tank Mount Design:** Compact and secure mounting directly on the tank for reliable, space-saving installation.
- • **Versatile Application:** Ideal for air horns, train horns, and air suspension compressors—upgrade your system with confidence.
- • **Dual Voltage Flexibility:** Works effortlessly with both 12V and 24V systems, perfect for diverse vehicle setups.
- • **Precision Pressure Control:** Automatically activates at 120 PSI and shuts off at 150 PSI for optimal performance.
- • **Universal Thread Compatibility:** Standard 1/4" NPT threading ensures seamless integration with most air tanks and compressors.

## Overview

The CompStudio Air Pressure Switch offers high-accuracy control by activating at 120 PSI and deactivating at 150 PSI. Featuring a universal 1/4" NPT thread and compatibility with both 12V and 24V systems, it mounts directly on air tanks for reliable performance. Perfectly suited for air horns, train horns, and air suspension compressors, this compact switch ensures your setup runs smoothly and efficiently.

## Description

CompStudio 120-150 PSI Air Pressure Switch Tank Mount Type Thread 1/4" NPT 12V/24V for Train/Air Horn 1/4inch

## Features

- Thread: ¼ inch
- Turn On Air Compressor 120 PSI ; Turn Off Air Compressor 150 PSI
- High Accuracy ; Tank Mount Type
- Fitment: Fits 12V or 24V Applications Ideal For Air Horns,Train Horns,Air Suspension Compressors,ect.
- Package Included: 1 X Horn Compressor Air Pressure Switch

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | CompStudio |
| Brand | CompStudio |
| Item Weight | 0.01 ounces |
| Package Dimensions | 4.5 x 1.2 x 0.3 inches |
| Is Discontinued By Manufacturer | No |
| Manufacturer Part Number | Comp4185295 |

## Images

![CompStudio 120-150 PSI Air Pressure Switch Tank Mount Type Thread 1/4" NPT 12V/24V for Train/Air Horn 1/4inch - Image 1](https://m.media-amazon.com/images/I/61VN3xBimhL.jpg)

## Available Options

This product comes in different **Size** options.

## Questions & Answers

**Q: Will these 12volt pressure switches work on a 120volt electric compressor ?**
A: No

**Q: Is this waterproof?**
A: To an extent, is your connector water proof?

**Q: Just to be sure, as it is 70/100, if I want to use for anything pressured less than 70, will it stop at 70 not letting me keep running?**
A: the pressure will stop between 70-100 mine stops around 80 they do make them to a lower pressure.

**Q: Can you wire this to the power switch on a portable 12v air compressor so that it will kick off automatically between tires, or does it need a relay?**
A: Previous answer is not correct. You can wire this in series with the on/off switch of the compressor and it will work.  That is exactly the purpose of the switch. The on/off switch is connected to a control board which is low power. The relay for the compressor motor (which is the high power draw) is built into the controller.

## Customer Reviews

### ⭐⭐⭐⭐⭐ It just works!
*by R***O on October 23, 2022*

I bought this to fix a 6 year old harbor freight pancake compressor. I saved a boat load over using an oe replacement and this little guy even had Teflon tape included in the box. The pressure switch cuts off at about 152 psi and restarts at around 125 but that's perfectly fine by me. 9.5 out of 10!

### ⭐⭐⭐⭐⭐ Good replacement
*by R***4 on April 20, 2025*

good replacement for my train horn set up.

### ⭐⭐⭐⭐⭐ Worked Well, Used on Smittybilt Compressor
*by L***L on April 29, 2021*

I modified my Smittybilt compressor so it shuts off when not being used. Was a great add and really assisted in functionality. The only downfall is the supplied soft case no longer works. So Im shopping for a new option. You cannot see the actual pressure switch because I used a piece of kydex to cover and protect.

## Frequently Bought Together

- CompStudio 120-150 PSI Air Pressure Switch Tank Mount Type Thread 1/4" NPT 12V/24V for Train/Air Horn 1/4inch
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- Viair 98 Compressor Kit

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*Product available on Desertcart Malaysia*
*Store origin: MY*
*Last updated: 2026-02-02*