---
product_id: 38606246
title: "LE LEMATEC Digital Air Pressure Regulator with Locking Valve for Air Slip Prevention, 1/4 NPT Inline Airflow Regulator Up to 160 PSI for Air Compressor, HVLP Spray Paint Gun & Pneumatic Tools (DAR03B)"
brand: "le lematec"
price: "NT$2909"
currency: TWD
in_stock: true
reviews_count: 11
category: "Le Lematec"
url: https://www.desertcart.tw/products/38606246-le-lematec-digital-air-pressure-regulator-with-locking-valve-air
store_origin: TW
region: Taiwan
---

# Digital Display up to 160 PSI Replaceable Battery Precision Locking Valve LE LEMATEC Digital Air Pressure Regulator with Locking Valve for Air Slip Prevention, 1/4 NPT Inline Airflow Regulator Up to 160 PSI for Air Compressor, HVLP Spray Paint Gun & Pneumatic Tools (DAR03B)

**Brand:** le lematec
**Price:** NT$2909
**Availability:** ✅ In Stock

## Summary

> 🎯 Nail your airflow game with precision and style!

## Quick Answers

- **What is this?** LE LEMATEC Digital Air Pressure Regulator with Locking Valve for Air Slip Prevention, 1/4 NPT Inline Airflow Regulator Up to 160 PSI for Air Compressor, HVLP Spray Paint Gun & Pneumatic Tools (DAR03B) by le lematec
- **How much does it cost?** NT$2909 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.tw](https://www.desertcart.tw/products/38606246-le-lematec-digital-air-pressure-regulator-with-locking-valve-air)

## Best For

- le lematec enthusiasts

## Why This Product

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

## Key Features

- • **Built to Last 💪:** Durable aluminum construction resists workshop wear and tear, making it a reliable partner for your pneumatic tools.
- • **Quick & Hassle-Free Setup 🔧:** Inline 1/4 NPT design enables fast installation, stabilizing your airflow for consistent, professional results.
- • **Cost-Smart & User-Friendly 🔋:** Replaceable lithium battery keeps your regulator running longer without surprise downtime or extra costs.
- • **Lock in Perfect Pressure ⚙️:** Precision locking valve prevents air slip and leakage, ensuring flawless tool performance every time.
- • **Crystal Clear Digital Readout 📊:** Easy-to-read digital display offers real-time, accurate pressure monitoring up to 160 PSI for ultimate control.

## Overview

The LE LEMATEC Digital Air Pressure Regulator (DAR03B) is a compact, inline 1/4 NPT airflow regulator designed for professional-grade air compressors, HVLP spray guns, and pneumatic tools. Featuring a precision locking valve to prevent air slip, a clear digital display for accurate pressure control up to 160 PSI, and a replaceable lithium battery, it ensures consistent, reliable performance. Its durable aluminum build and easy installation make it an essential upgrade for pros and DIYers seeking flawless tool accuracy and efficiency.

## Description

Buy LE LEMATEC Digital Air Pressure Regulator with Locking Valve for Air Slip Prevention, 1/4 NPT Inline Airflow Regulator Up to 160 PSI for Air Compressor, HVLP Spray Paint Gun & Pneumatic Tools (DAR03B): Pressure Regulators - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: The Lematec Digital Air Regulator - offers peace of mind and is well worth the $35 bucks we spent. - The Lematec Digital Adjustable Air Regulator is actually smaller than a typical analog regulator, but that’s okay as it’s still easy to read. It does what the company advertises it can do. We now briefly use this digital regulator in conjunction with our high flow locking analog regulator as a quick accuracy check in the morning. We keep the high flow analog regulator permanently attached to our portable pancake compressor. The digital gauge is left wide open and only gets attached momentarily to the business end of the pressure hose (100 foot long) where our nailers will get connected prior using our air tools. To clarify, it’s just an on and then quickly back off again operation. The tool never actually gets attached to the line while the digital gauge is on the end of it. The reason we do this quick pressure check each day is to ensure that the air flow always remains consistent before we get to work using professional grade floor nailers. It makes the job go quicker and easier as the nailers definitely run much smoother when the air pressure is consistent. The Lematec Digital Air Regulator (digital gauge) offers peace of mind and is well worth the $35 bucks we spent.
Review: You will want to buy more ! - Works great ! I used it for my HTE black widow form harbor freight ! Buying a few more my my other guns!

## Features

- inline air pressure regulator
- Precision Locking Valve: Accurate air pressure control; prevents leakage; essential for paint gun and HVLP regulators.
- Easy Installation: Inline regulator; quick setup; ensures airline stability for consistent air pressure.
- Digital Display: Easy-to-read display; precise monitoring; adjusts up to 160 PSI; ideal for spray guns.
- Replaceable Battery: Features replaceable battery; cost-effective for air compressor regulation.
- Durable Construction: Robust 1/4 NPT air regulator; resists damage; perfect for workshops.
- Wide Adjustment Range: Adjusts up to 160 PSI; precise air pressure control; suitable for inline regulators.
- Locking Regulator: Secure mechanism; essential for HVLP spray guns and pneumatic tools.
- Universal Compatibility: Fits most air compressors and tools; versatile for various regulators.
- User-Friendly Design: Simple controls; easy adjustment and monitoring; great for pros and DIY users.
- High-Performance: Boosts tool accuracy and reliability; optimal for digital spray gun applications.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B01N7SHW9J |
| Batteries | 210 Lithium Metal batteries required. |
| Batteries Included? | No |
| Batteries Required? | No |
| Battery Cell Type | Lithium |
| Best Sellers Rank | #44,574 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #30 in Industrial Pressure Regulators |
| Brand | LE LEMATEC |
| Customer Reviews | 4.1 4.1 out of 5 stars (1,357) |
| Date First Available | January 15, 2017 |
| Exterior Finish | Metallic Finish |
| Global Trade Identification Number | 00850030726728 |
| Inlet Connection Size | 0.25 Inches |
| Inlet Connection Type | National Pipe Tapered |
| Is Discontinued By Manufacturer | No |
| Item Package Quantity | 1 |
| Item Weight | 1.16 ounces |
| Item dimensions L x W x H | 3.23 x 2.76 x 2.05 inches |
| Item model number | DAR03B |
| Manufacturer | Ubiquitous |
| Material | Aluminun |
| Maximum Operating Pressure | 140 Pound per Square Inch |
| Number of Ports | 2 |
| Outlet Connection Size | 0.25 Inches |
| Outlet Connection Type | NPT |
| Part Number | DAR03B |
| Product Dimensions | 3.23 x 2.76 x 2.05 inches |
| Size | 7 x 8.2 x 5.2 inches |
| Specification Met | ASME, ANSI, CE |
| Style | Locking Valve Version |
| Usage | Regulate Air Pressure |

## Product Details

- **Brand:** LE LEMATEC
- **Exterior Finish:** Metallic Finish
- **Inlet Connection Size:** 0.25 Inches
- **Inlet Connection Type:** National Pipe Tapered
- **Item dimensions L x W x H:** 3.23 x 2.76 x 2.05 inches
- **Material:** Aluminun
- **Maximum Operating Pressure:** 140 Pound per Square Inch
- **Number of Ports:** 2
- **Outlet Connection Size:** 0.25 Inches
- **Outlet Connection Type:** NPT

## Images

![LE LEMATEC Digital Air Pressure Regulator with Locking Valve for Air Slip Prevention, 1/4 NPT Inline Airflow Regulator Up to 160 PSI for Air Compressor, HVLP Spray Paint Gun & Pneumatic Tools (DAR03B) - Image 1](https://m.media-amazon.com/images/I/61j6ANDTSmL.jpg)

## Available Options

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

## Questions & Answers

**Q: "Is this a true air regulator or just a flow restrictor?"**
A: The DAR03B is a needle valve regulator with digital display—it actively regulates airflow to maintain your set PSI. For diaphragm-style regulation (pressure holds with no airflow), see our DAR02B model.

**Q: "Does the display turning off affect my pressure setting?"**
A: No—the display auto-sleeps to save battery, but your pressure setting stays locked. The timer is adjustable (30 sec to 3 min) via instructions. Just tap the button to wake the display and verify.

**Q: "What's the CFM rating? Will it restrict flow to my spray gun?"**
A: Rated at 16 CFM—more than enough for professional HVLP guns (typically 8-15 CFM). Won't choke airflow or affect your spray pattern when sized correctly for your compressor.

**Q: "How accurate is it at low pressures for airbrush work?"**
A: Optimized for 10-160 PSI range typical of spray guns and pneumatic tools. For precision airbrush work under 10 PSI, consider a dedicated airbrush regulator designed for that range.

## Customer Reviews

### ⭐⭐⭐⭐⭐ The Lematec Digital Air Regulator - offers peace of mind and is well worth the $35 bucks we spent.
*by S***R on October 20, 2024*

The Lematec Digital Adjustable Air Regulator is actually smaller than a typical analog regulator, but that’s okay as it’s still easy to read. It does what the company advertises it can do. We now briefly use this digital regulator in conjunction with our high flow locking analog regulator as a quick accuracy check in the morning. We keep the high flow analog regulator permanently attached to our portable pancake compressor. The digital gauge is left wide open and only gets attached momentarily to the business end of the pressure hose (100 foot long) where our nailers will get connected prior using our air tools. To clarify, it’s just an on and then quickly back off again operation. The tool never actually gets attached to the line while the digital gauge is on the end of it. The reason we do this quick pressure check each day is to ensure that the air flow always remains consistent before we get to work using professional grade floor nailers. It makes the job go quicker and easier as the nailers definitely run much smoother when the air pressure is consistent. The Lematec Digital Air Regulator (digital gauge) offers peace of mind and is well worth the $35 bucks we spent.

### ⭐⭐⭐⭐⭐ You will want to buy more !
*by C***A on February 13, 2026*

Works great ! I used it for my HTE black widow form harbor freight ! Buying a few more my my other guns!

### ⭐⭐⭐⭐ Performs great/hard to clean
*by E***X on December 11, 2024*

Love the digital read out and works great. I’m an automotive refinisher so I put it to work. Works great but the only downfall is it’s hard to clean the over spray off at times. With that being said I would still recommend this to be purchased. Affordable and really does a great job.

## Frequently Bought Together

- LE LEMATEC Digital Air Pressure Regulator with Locking Valve for Air Slip Prevention, 1/4 NPT Inline Airflow Regulator Up to 160 PSI for Air Compressor, HVLP Spray Paint Gun & Pneumatic Tools (DAR03B)
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*Product available on Desertcart Taiwan*
*Store origin: TW*
*Last updated: 2026-03-14*