---
product_id: 319368233
title: "Extech 45170 Four in One Environmental Meter (Hygro-Thermo-Anemometer-Light)"
brand: "extech"
price: "₨10824"
currency: SCR
in_stock: false
reviews_count: 5
category: "Extech"
url: https://www.desertcart.sc/products/319368233-extech-45170-four-in-one-environmental-meter-hygro-thermo-anemometer
store_origin: SC
region: Seychelles
---

# Cosine & color-corrected light sensor 4-in-1 multi-sensor precision Dual large LCD simultaneous display Extech 45170 Four in One Environmental Meter (Hygro-Thermo-Anemometer-Light)

**Brand:** extech
**Price:** ₨10824
**Availability:** ❌ Out of Stock

## Summary

> 🌬️ Measure the unseen, master your environment.

## Quick Answers

- **What is this?** Extech 45170 Four in One Environmental Meter (Hygro-Thermo-Anemometer-Light) by extech
- **How much does it cost?** ₨10824 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.sc](https://www.desertcart.sc/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

- • **Smart Data Control:** Freeze readings with Data Hold and track extremes with Min/Max recording—never miss a detail.
- • **Precision Airflow Tracking:** Low-friction vane wheel delivers accurate wind speed in multiple units—ft/min to knots.
- • **Light Measurement Like a Pro:** Advanced photo diode with color correction ensures true-to-life lux and foot-candle readings.
- • **All-in-One Environmental Mastery:** Humidity, temperature, air velocity, and light—one rugged pocket powerhouse.
- • **Instant Clarity with Dual Display:** See temperature and air velocity or humidity side-by-side for real-time insights.

## Overview

The Extech 45170 is a compact, rugged 4-in-1 environmental meter combining humidity, temperature, air velocity, and light measurement. Featuring a dual LCD display, precision sensors including a thin-film capacitance humidity sensor and a color-corrected light sensor, it offers versatile, accurate readings in multiple units. Designed for professionals on the go, it includes data hold, min/max recording, and auto power-off, all powered by a single 9V battery in a pocket-sized ergonomic housing.

## 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: Five Stars - Works like a charm!
Review: Best of low tech - 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 |
| Brand | Extech |
| Brand Name | Extech |
| Customer Reviews | 4.3 out of 5 stars 182 Reviews |
| EU Spare Part Availability Duration | 1 Years |
| Global Trade Identification Number | 00793950451700 |
| Included Components | Extech 45170 Four in One Environmental Meter (Hygro-Thermo-Anemometer-Light) |
| Item Dimensions | 6.1 x 3.3 x 15.5 centimeters |
| Item Weight | 3.84 Ounces |
| Item dimensions L x W x H | 6.1 x 3.3 x 15.5 centimeters |
| Item weight | 3.84 Ounces |
| Manufacturer | Extech |
| Material | HAWA |
| Material Type | HAWA |
| UPC | 793950451700 |
| Unit Count | 1 Count |
| Voltage | 9 |

## Product Details

- **Brand:** Extech
- **Material:** HAWA
- **Item dimensions L x W x H:** 6.1 x 3.3 x 15.5 centimeters
- **Item weight:** 3.84 Ounces
- **UPC:** 793950451700

## Images

![Extech 45170 Four in One Environmental Meter (Hygro-Thermo-Anemometer-Light) - Image 1](https://m.media-amazon.com/images/I/61YCtPZZ0cL.jpg)
![Extech 45170 Four in One Environmental Meter (Hygro-Thermo-Anemometer-Light) - Image 2](https://m.media-amazon.com/images/I/811a30TWIpL.jpg)
![Extech 45170 Four in One Environmental Meter (Hygro-Thermo-Anemometer-Light) - Image 3](https://m.media-amazon.com/images/I/81GnOv2huZL.jpg)
![Extech 45170 Four in One Environmental Meter (Hygro-Thermo-Anemometer-Light) - Image 4](https://m.media-amazon.com/images/I/81IyyepOruL.jpg)
![Extech 45170 Four in One Environmental Meter (Hygro-Thermo-Anemometer-Light) - Image 5](https://m.media-amazon.com/images/I/91RZfO7Zj1L.jpg)

## 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

### ⭐⭐⭐⭐⭐ Five Stars
*by K***Y on 8 October 2015*

Works like a charm!

### ⭐⭐⭐⭐⭐ Best of low tech
*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.

### ⭐⭐⭐⭐⭐ ver marca y revisar opiniones
*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 Seychelles*
*Store origin: SC*
*Last updated: 2026-01-30*