---
product_id: 404900744
title: "A-4000-120 Oil Indicator with Needle Valve"
brand: "johnson controls"
price: "€ 240.20"
currency: EUR
in_stock: true
category: "Johnson Controls"
url: https://www.desertcart.de/products/404900744-a-4000-120-oil-indicator-with-needle-valve
store_origin: DE
region: Germany
---

# Detects oil entrainment as low as 0.01 PPM Flow measurement at 2 scim/psig 10-125 psig line pressure range A-4000-120 Oil Indicator with Needle Valve

**Brand:** johnson controls
**Price:** € 240.20
**Availability:** ✅ In Stock

## Summary

> 💡 Stay ahead of contamination with pinpoint oil detection!

## Quick Answers

- **What is this?** A-4000-120 Oil Indicator with Needle Valve by johnson controls
- **How much does it cost?** € 240.20 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.de](https://www.desertcart.de/products/404900744-a-4000-120-oil-indicator-with-needle-valve)

## Best For

- johnson controls enthusiasts

## Why This Product

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

## Key Features

- • **Robust Pressure Range:** Operates seamlessly between 10 to 125 psig, adapting to diverse compressed air setups.
- • **Visual Color Indicator:** Instant, proportional color feedback on oil presence keeps you ahead of contamination risks.
- • **Integrated Needle Valve:** Built-in needle valve ensures precise flow control and easy maintenance.
- • **Precision Oil Detection:** Pinpoint aerosol-mist oil levels down to 0.01 PPM for ultimate system clarity.
- • **Conversion Chart Included:** Quickly translate color changes into exact PPM values—no guesswork, just data.

## Overview

The Johnson Controls A-4000-120 Oil Indicator with Needle Valve is a high-precision tool designed to detect aerosol-mist oil entrainment in compressed air systems. It operates within a line pressure range of 10 to 125 psig and measures flow at 2 scim/psig. Featuring a color-indicating cartridge and an included conversion chart, it allows users to accurately monitor oil levels as low as 0.01 PPM, ensuring optimal system performance and maintenance.

## Description

The Oil Indicator detects aerosol-mist levels of oil entrainment that may be present in compressed air systems. Any oil present in the air causes a proportional color indication on a cartridge installed on the needle valve fitting. A conversion chart is included to determine the parts per million (PPM) value of the oil entrainment indicated on the cartridge.

## Features

- Line Pressure: 10 to 125 psig
- Measurement Flow: 2 scim/psig
- Lowest Concentration of Oil Entrainment Measured: 0.01 PPM

## Images

![A-4000-120 Oil Indicator with Needle Valve - Image 1](https://m.media-amazon.com/images/I/917gFQD2csL.jpg)

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---

*Product available on Desertcart Germany*
*Store origin: DE*
*Last updated: 2026-01-27*