---
product_id: 12087761
title: "Dwyer® Handheld Digital Manometer, 475-3-FM, 0-200\" w.c. (49.82 kPa)"
brand: "dwyer"
price: "HK$4207"
currency: HKD
in_stock: true
category: "Dwyer"
url: https://www.desertcart.hk/products/12087761-dwyer-handheld-digital-manometer-475-3-fm-0-200-w
store_origin: HK
region: Hong Kong
---

# 4-digit LCD Display Range: 0-200" w.c. Temp: 0-140°F Dwyer® Handheld Digital Manometer, 475-3-FM, 0-200" w.c. (49.82 kPa)

**Brand:** dwyer
**Price:** HK$4207
**Availability:** ✅ In Stock

## Summary

> 🔧 Measure with Confidence!

## Quick Answers

- **What is this?** Dwyer® Handheld Digital Manometer, 475-3-FM, 0-200" w.c. (49.82 kPa) by dwyer
- **How much does it cost?** HK$4207 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hk](https://www.desertcart.hk/products/12087761-dwyer-handheld-digital-manometer-475-3-fm-0-200-w)

## Best For

- dwyer enthusiasts

## Why This Product

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

## Key Features

- • **Complete Kit Included:** Comes with everything you need: rubber tubing, 9V battery, step drill, AV calculator slide rule, and a custom carrying case.
- • **Precision Measurement:** Achieve accurate readings with a range of 0 to 200" w.c. (49.82 kPa) for all your pressure needs.
- • **User-Friendly Display:** Easily read measurements on a clear 4-digit LCD, designed for quick reference.
- • **Versatile Connections:** Equipped with two barbed connections for seamless integration with 1/8" or 3/16" I.D. tubing.
- • **Robust Temperature Limits:** Engineered to perform in a wide temperature range, from 0 to 140°F, ensuring reliability in various environments.

## Overview

The Dwyer® Handheld Digital Manometer 475-3-FM is a high-performance device designed for precise pressure measurement, featuring a range of 0 to 200" w.c. and a user-friendly 4-digit LCD display. This versatile manometer includes essential accessories and is built to withstand a variety of temperatures, making it an indispensable tool for professionals in the field.

## Description

The Dwyer Series 475 Mark III intrinsically-safe digital manometer provides positive, negative, and differential pressure measurements, and is used to perform field calibration, monitoring or troubleshooting HVAC systems, performing clean room inspections, air velocity monitoring, and natural gas appliance-line testing. The meter is FM-approved intrinsically safe for Class 1, Div. 1, Group A, B, C, D, T4 hazardous locations. It has an accuracy of + or - 0.5% of full scale at 60 to 78 degrees F, and + or - 1.5% full scale at 32 to 60 and 78 to 104 degrees F. The extruded aluminum case provides durability. The backlit four-digit LCD displays the pressure measurement. The zero function nulls minor pressure differences before measuring. Standard connections accept 1/8" or 3/16" inside diameter (ID) vinyl or rubber tubing. The meter is powered by a 9V battery (included) and automatically shuts off after 20 minutes to preserve battery life. SpecificationsPressure typesPositive, negative, and differentialMedia typeAir and compatible combustible gasesCase materialExtruded aluminumDisplayFour-digit LCDTemperature limits0 to 140 degrees F/-17.8 to +60 degrees CCompensated temperature limits32 to 104 degrees F/0 to 40 degrees CDimensions6-17/32 x 2-13/16 x 29/32 (H x W x D)Power9V alkaline batteryAgency approvalsCE, FMH is height, the vertical distance from the lowest to highest point; W is width, the horizontal distance from left to right; D is depth, the horizontal distance from front to back.Manometers measure the pressure of a liquid or gas. They are used in laboratory, medical equipment, engineering, automotive, and heating, ventilation, and air-conditioning applications. Manometers measure any combination of gauge, absolute, or differential pressures. Gauge pressure is the amount of pressure in a system relative to the ambient pressure, absolute pressure is the amount of pressure in a system relative to an absolute vacuum, and differential pressure is the difference between two pressures. Analog manometers are composed of columns of liquid, and they use gravity and the liquid's density to calculate pressure. Because they have no moving parts, analog manometers do not require re-calibration. Digital manometers have pressure sensors that are connected to a system with a hose to provide a digital readout of the amount of pressure present in a system. They use microprocessors to calculate pressure, and they require periodic calibration to help ensure accuracy.Dwyer Instruments manufactures measurement and control instruments, including pressure gauges, flow meters, level instrumentation, temperature instrumentation, and air quality monitors. The company, founded in 1931, is headquartered in Michigan City, IN.

## Features

- MANUFACTURER DIRECT
- Range: 0 to 200.0" w.c. (49.82 kPa); Display: 0.42" (10.6 mm) 4-digit LCD.
- Connections: Two barbed connections for use with 1/8" (3.18 mm) or 3/16" (4.76 mm) I.D. tubing.
- Limits: Ambient Temperature: 0 to 140°F (-17.8 to 60°C); Storage Temperature: -4 to 176°F (-20 to 80°C); Pressure: 30 psig
- Kit comes complete with rubber tubing, 9V battery, step drill, AV calculator slide rule, and custom fitted carrying case.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B008FM8L9M |
| Best Sellers Rank | #143,286 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #40 in Manometers |
| Brand | Dwyer |
| Brand Name | Dwyer |
| Customer Reviews | 4.0 out of 5 stars 33 Reviews |
| Global Trade Identification Number | 00094704535593 |
| Item Dimensions | 10 x 5 x 1.1 inches |
| Item Weight | 10.8 ounces |
| Item dimensions L x W x H | 10 x 5 x 1.1 inches |
| Manufacturer | Dwyer Instruments, Inc. |
| Material | Aluminum, Rubber |
| Material Type | Aluminum, Rubber |
| Model | 475-3-FM |
| Number of Items | 1 |
| Number of Packs | 1 |
| Part Number | 475-3-FM |
| Thread Style | 1/8" Or 3/16" Id |
| Thread Type | 1/8" Or 3/16" Id |
| UPC | 094704535593 |
| Unit Count | 1 Count |

## Product Details

- **Brand:** Dwyer
- **Material:** Aluminum, Rubber
- **Item Weight:** 10.8 Ounces
- **UPC:** 094704535593
- **Global Trade Identification Number:** 00094704535593

## Images

![Dwyer® Handheld Digital Manometer, 475-3-FM, 0-200" w.c. (49.82 kPa) - Image 1](https://m.media-amazon.com/images/I/61Ns+MoSLsL.jpg)

## Available Options

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

## Questions & Answers

**Q: does the meter come with a hose kit?**
A: No.

**Q: Does this unit come with a carrying case?**
A: No, it does not but there are several options available,  the protective boot, part A-47X-BOOT, the UHH-C1 soft carrying case, and the A-402A Nylon pouch.

**Q: How do you display the readings in inches of water column?**
A: It should come out of the box displaying inches of water column. If not, pressure both buttons on the front simultaneously to toggle between KPa and inches of water column.

**Q: While doing a pressure check my gauge read 313 inwc which is around 12lbs it also displayed a code ofl anyone know what that means?**
A: Probably mean s you exceeded the pressure limit (which I believe is 10psi). Look at the max specs of your unit to be sure.

## Frequently Bought Together

- Dwyer® Handheld Digital Manometer, 475-3-FM, 0-200" w.c. (49.82 kPa)
- Dwyer® A-47X-BOOT, Protective Magnetic Rubber Boot for manometers
- Dwyer® Nylon Carrying Pouch, A-402A, for Digital Manometers, 7-1/2" x 3" x 2-1/4"

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.hk/products/12087761-dwyer-handheld-digital-manometer-475-3-fm-0-200-w](https://www.desertcart.hk/products/12087761-dwyer-handheld-digital-manometer-475-3-fm-0-200-w)

---

*Product available on Desertcart Hong Kong*
*Store origin: HK*
*Last updated: 2026-09-30*