--- product_id: 319368233 title: "45170 Four in One Environmental Meter (Hygro-Thermo-Anemometer-Light)" brand: "extech" price: "R10231" currency: ZAR in_stock: true reviews_count: 5 category: "Extech" url: https://www.desertcart.co.za/products/319368233-45170-four-in-one-environmental-meter-hygro-thermo-anemometer-light store_origin: ZA region: South Africa --- # Cosine & color-corrected light sensor 4-in-1 multi-sensor precision Dual large LCD simultaneous display 45170 Four in One Environmental Meter (Hygro-Thermo-Anemometer-Light) **Brand:** extech **Price:** R10231 **Availability:** ✅ In Stock ## Summary > 🌿 Measure smarter, lead greener — the ultimate 4-in-1 environmental edge. ## Quick Answers - **What is this?** 45170 Four in One Environmental Meter (Hygro-Thermo-Anemometer-Light) by extech - **How much does it cost?** R10231 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/319368233-45170-four-in-one-environmental-meter-hygro-thermo-anemometer-light) ## 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 - • **Compact Powerhouse:** Pocket-sized rugged design fits your on-the-go lifestyle without compromise. - • **Smart Light Sensing:** Advanced photo diode with color correction delivers accurate, cosine-corrected light readings up to 20,000 lux. - • **Dual Display Clarity:** Simultaneously view temperature and air velocity or humidity for instant, actionable insights. - • **Data Control & Memory:** Freeze readings with Data Hold and track environmental extremes with Min/Max recording—never miss a critical moment. - • **Precision Airflow Tracking:** Low-friction vane wheel measures air velocity in 5 units—ft/min, mph, m/s, km/h, knots—perfect for pros. ## 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 with reversible orientation, it offers precise readings via a thermistor, thin-film capacitance humidity sensor, low-friction vane wheel, and a cosine-corrected photo diode. With data hold, min/max recording, and multi-unit air velocity options, it’s engineered for professionals demanding accuracy and portability in one sleek device. ## 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 ## 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 | 4.4 out of 5 stars 184 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 | | Model | 45170 | | Number of Items | 1 | | Part Number | 45170 | | UPC | 793950451700 | | Unit Count | 1 Count | | 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 ![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 **Pattern, Style** 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* ### ⭐⭐⭐⭐⭐ Review *by K***E on 23 August 2021* ### ⭐⭐⭐⭐⭐ Review *by J***S on 9 August 2019* ## 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 --- ## 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.co.za/products/319368233-45170-four-in-one-environmental-meter-hygro-thermo-anemometer-light](https://www.desertcart.co.za/products/319368233-45170-four-in-one-environmental-meter-hygro-thermo-anemometer-light) --- *Product available on Desertcart South Africa* *Store origin: ZA* *Last updated: 2026-06-19*