---
product_id: 319368233
title: "Extech 45170 Four in One Environmental Meter (Hygro-Thermo-Anemometer-Light)"
brand: "extech"
price: "R$5608"
currency: BRL
in_stock: true
reviews_count: 5
category: "Extech"
url: https://www.desertcart.com.br/products/319368233-extech-45170-four-in-one-environmental-meter-hygro-thermo-anemometer
store_origin: BR
region: Brazil
---

# 20,000 Lux Light Sensor Multi-unit Air Velocity ±0.5% Temp Accuracy Extech 45170 Four in One Environmental Meter (Hygro-Thermo-Anemometer-Light)

**Brand:** extech
**Price:** R$5608
**Availability:** ✅ In Stock

## Summary

> 🌍 Master your environment with precision and style — because every detail counts.

## Quick Answers

- **What is this?** Extech 45170 Four in One Environmental Meter (Hygro-Thermo-Anemometer-Light) by extech
- **How much does it cost?** R$5608 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.br](https://www.desertcart.com.br/products/319368233-extech-45170-four-in-one-environmental-meter-hygro-thermo-anemometer)

## Best For

- extech enthusiasts

## Why This Product

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

## Key Features

- • **Pro-Grade Accuracy:** ±0.5% measurement accuracy with a low-friction vane wheel and precision sensors for reliable data every time.
- • **Precision in Your Palm:** Pocket-sized rugged design with large dual LCD for simultaneous temp & air velocity or humidity readings.
- • **Data Control & Tracking:** Freeze readings with Data Hold and track environmental extremes with Min/Max recording — never miss a critical moment.
- • **Smart Display Adaptation:** Auto-reversing LCD display switches orientation based on mode for effortless reading in any environment.
- • **Versatile Environmental Insights:** 4-in-1 meter measuring humidity, temperature, air velocity, and light — all in one sleek tool.

## Overview

The Extech 45170 is a compact, rugged 4-in-1 environmental meter combining humidity, temperature, air velocity, and light measurement. Featuring a large dual LCD, ±0.5% accuracy, and multi-unit air velocity options, it offers professional-grade data in a pocket-sized tool. Its smart display reverses for mode clarity, includes Data Hold and Min/Max recording, and measures light up to 20,000 lux, making it an essential device for precise environmental monitoring.

## Description

Extech 45170 Four in One Environmental Meter (Hygro-Thermo-Anemometer-Light) The pocket-sized, four-in-one Extech 45170 hygro-thermo-anemometer-light meter displays temperature and gives you a choice between showing relative humidity or air velocity. Temperature air or surface measurements can be made using the built-in Type K input (thermocouple probe sold separately). Additionally, the 45170 includes a light sensor, and its display reverses when in light mode. Type K temperature input (probe sold separately, view larger). The 45170 features a built in thermistor for ambient temperature measurements and a precision thin-film capacitance humidity sensor for fast response. The low friction vane wheel improves accuracy when measuring air velocity in ft/min, mph, m/s, km/h, and knots. For light measurement, the 45170 utilizes a precision photo diode and color correction filter and can provide cosine and color corrected light measurements. Other features include recording of minimum/maximum readings, a Data Hold function to freeze the displayed value, auto power off, and low battery indication. The device has a temperature range of 32 to 122 degrees F, a humidity range of 10 to 95 percent relative humidity (RH), and light measurement capabilities of up to 1860 foot candles or 20,000 lux. Additionally, it offers the following air velocity measurement ranges: Measurements The 45170 measures 6.1 x 2.4 x 1.3 inches (HxWxD), weighs 5 ounces, and is powered by a single 9-volt battery. It. What's in the Box 45170 Hygro-Thermo-Anemometer-Light Meter, wrist strap, 9-volt battery, operating instructions

Review: Works like a charm!
Review: This anemometer is so easy to use. Did have to read instructions to set units, but no problems. Reliable and tough with accurate wind readings. The temps seem to be a little slow when removing from the vehicle and reactive to wind readings, hence the 4 stars.

## Features

- Pocket size rugged 4-in-1 meter for humidity, temperature, air, velocity and light
- Ergonomic pocket size housing with large dual LCD simultaneous display of temperature and air velocity or relative humidity
- Characters on display reverse direction depending on Hygro-Thermo-Anemometer or light mode
- Data hold to freeze the displayed value
- Records Min/Max readings

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B004AZ6I3Y |
| ASIN  | B004AZ6I3Y |
| Batteries | 2 Lithium Ion batteries required. (included) |
| Batteries  | 2 Lithium Ion batteries required. (included) |
| Batteries Included? | Yes |
| Batteries Required? | Yes |
| Color | Green |
| Customer Reviews | 4.3 4.3 out of 5 stars (183) |
| Customer reviews | 4.3 4.3 out of 5 stars (183) |
| Date First Available | 11 August 2012 |
| Date First Available  | 11 August 2012 |
| Display Style | LCD |
| Included components | Extech 45170 Four in One Environmental Meter (Hygro-Thermo-Anemometer-Light) |
| Is Discontinued By Manufacturer  | No |
| Item Package Quantity | 1 |
| Item Weight | 109 g |
| Item model number | 45170 |
| Item model number  | 45170 |
| Manufacturer | Extech |
| Manufacturer  | Extech |
| Material | HAWA |
| Measurement Accuracy | +/-0.5% |
| Number Of Pieces | 1 |
| Part number | 45170 |
| Pattern | Weather Station |
| Plug Profile | Surface Mount |
| Power source type | Battery Powered |
| Product Dimensions | 6.1 x 3.31 x 15.5 cm; 108.86 g |
| Product Dimensions  | 6.1 x 3.31 x 15.5 cm; 108.86 g |
| Shape | Rectangular |
| Size | Thermo-Anemometer with Light |
| Special Features | Large Display |
| Style | 45170 |
| Voltage | 9 |

## Product Details

- **Brand:** Extech
- **EU Spare Part Availability Duration:** 1 Years
- **Item dimensions L x W x H:** 6.1 x 3.3 x 15.5 centimeters
- **Item weight:** 3.84 Ounces
- **Material:** HAWA

## Images

![Extech 45170 Four in One Environmental Meter (Hygro-Thermo-Anemometer-Light) - Image 1](https://m.media-amazon.com/images/I/811a30TWIpL.jpg)

## Available Options

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

## Questions & Answers

**Q: What is the minimum wind speed that this anemometer can measure accurately? I'm currently looking for an anemometer that can measure wind speed <1 m/s**
A: wind speed measurement for the 407113 CFM Anemometer is:
MPH: 1.1 to 78.3
knots: 1.0 to 68
km/h: 1.8 to 126
AIRFLOW:
CFM = FT3/MIN: 0 TO 999,900 CFM
CMM= M3/MIN: 0 TO 999,900 CMM

I hope this helps your decision to buy.

**Q: Is the 9 volt battery replaceable?  Does it have a tripod mount?**
A: Yes the battery is replaceable however it is a 3V #2032. To my knowledge no tripod mount is available.

**Q: can i buy  the probe seperatly**
A: Unfortunately, you cannot purchase the probe for this unit separately.  If you change the probe on the meter, it will no longer provide accurate readings. The meter is calibrated with the probe at the factory to provide accurate reading, and the meter can only be calibrated with one probe at a time.  If the probe is damaged, you will have to send the meter in to the factory to have a new probe calibrated with the meter.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by K***Y on 8 October 2015*

Works like a charm!

### ⭐⭐⭐⭐⭐ Review
*by K***E on 23 August 2021*

This anemometer is so easy to use. Did have to read instructions to set units, but no problems. Reliable and tough with accurate wind readings. The temps seem to be a little slow when removing from the vehicle and reactive to wind readings, hence the 4 stars.

### ⭐⭐⭐⭐⭐ Review
*by J***S on 9 August 2019*

buena marca y bastanse practico. en general me gusto

## Frequently Bought Together

- Extech 45170 Four in One Environmental Meter (Hygro-Thermo-Anemometer-Light)
- Duracell Coppertop 9V Battery, 2 Count Pack, 9-Volt Battery with Long-lasting Power, All-Purpose Alkaline 9V Battery for Household and Office Devices
- Duracell - CopperTop AA Alkaline Batteries - Long Lasting, All-Purpose Double A Battery for Household and Business, 4 Batteries, Power Remotes, Toys, and More, Reliable and Trustworthy

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*Product available on Desertcart Brazil*
*Store origin: BR*
*Last updated: 2026-03-07*