--- product_id: 223411347 title: "Sper Scientific 736740 Mason's Hygrometer" brand: "sper scientific" price: "854 DH" currency: MAD in_stock: true reviews_count: 5 category: "Sper Scientific" url: https://www.desertcart.ma/products/223411347-sper-scientific-736740-masons-hygrometer store_origin: MA region: Morocco --- # Wet bulb tech for precise humidity No batteries needed - eco-friendly Dual temp scales -10/50°C & 10/120°F Sper Scientific 736740 Mason's Hygrometer **Brand:** sper scientific **Price:** 854 DH **Availability:** ✅ In Stock ## Summary > 💧 Stay ahead of humidity—measure with precision, style, and zero fuss! ## Quick Answers - **What is this?** Sper Scientific 736740 Mason's Hygrometer by sper scientific - **How much does it cost?** 854 DH with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.ma](https://www.desertcart.ma/products/223411347-sper-scientific-736740-masons-hygrometer) ## Best For - sper scientific enthusiasts ## Why This Product - Trusted sper scientific brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Eco-Friendly Operation:** Zero batteries required—always ready, always reliable. - • **Vibrant Red Liquid Display:** Easy-to-read, mercury-free red liquid enhances visibility and safety. - • **Compact Tabletop Form Factor:** Sleek, lightweight design fits perfectly on any desk or workspace. - • **Classic Wet & Dry Bulb Design:** Time-tested method ensures accurate humidity measurement without digital guesswork. - • **Precision Dual-Scale Readings:** Seamlessly switch between Celsius and Fahrenheit for versatile monitoring. ## Overview The Sper Scientific 736740 Mason's Hygrometer offers accurate humidity measurement using a classic wet and dry bulb system with dual temperature scales (-10/50°C and 10/120°F). Featuring a safe, easy-to-read red liquid display and requiring no batteries, this compact tabletop device is perfect for professionals seeking reliable environmental monitoring with a touch of vintage charm. ## Description Measure Humidity - Mason's Hygrometer - Red Liquid. One thermometer bulb is kept constantly wet by a siphon reservoir while the other gives a dry temperature reading. Humidity is obtained by comparing the two readings on the enclosed chart. The red liquid masons hygrometer uses a safe and easy to read red liquid in place of the usual mercury. Dual scales of -10/50°C and 10/120°F. Review: Five Stars - Easy to use and very handy to measure humidex in a work place. Review: Kind of cheap, but it does work - One just has to be careful w/this device. The bottle is so small, the water there evaporates in a few days. ## Features - Measure Humidity - Mason's Hygrometer - Red Liquid - Dual scales of -10/50°C and 10/120°F - High quality - Red Liquid ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00N5IRZS4 | | Battery Description | No batteries required | | Battery description | No batteries required | | Brand | Sper Scientific | | Colour | White | | Customer Reviews | 3.7 out of 5 stars 36 Reviews | | Item Weight | 3.8 Ounces | | Item weight | 3.8 Ounces | | Manufacturer | Sper Scientific | | Manufacturer Part Number | 736740 | | Model Number | 736740 | | Mounting Type | Tabletop | | Mounting type | Tabletop | | Number of Items | 1 | | UPC | 077754662617 696738569263 | | Unit Count | 1 Hygromete | | Upper Temperature Rating | 50 Degrees Celsius | | Upper temperature rating | 50 Degrees Celsius | ## Product Details - **Colour:** White - **Brand:** Sper Scientific - **Item weight:** 3.8 Ounces - **Battery description:** No batteries required - **Mounting type:** Tabletop ## Images ![Sper Scientific 736740 Mason's Hygrometer - Image 1](https://m.media-amazon.com/images/I/51pLwX2A6YL.jpg) ![Sper Scientific 736740 Mason's Hygrometer - Image 2](https://m.media-amazon.com/images/I/71RKhd4w5NL.jpg) ![Sper Scientific 736740 Mason's Hygrometer - Image 3](https://m.media-amazon.com/images/I/81yJbN2IYrL.jpg) ![Sper Scientific 736740 Mason's Hygrometer - Image 4](https://m.media-amazon.com/images/I/71bHRjbwoeL.jpg) ![Sper Scientific 736740 Mason's Hygrometer - Image 5](https://m.media-amazon.com/images/I/81rQ25J+t0L.jpg) ## Questions & Answers **Q: How often do you need to refill the bottle at different humidity levels?** A: Please note I added a 30mm fan to move air across the wick. With humidity the 45% range and the fan operating, I need to add water about every 4 days. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Five Stars *by E***A on 5 July 2018* Easy to use and very handy to measure humidex in a work place. ### ⭐⭐⭐⭐ Kind of cheap, but it does work *by K***N on 22 November 2021* One just has to be careful w/this device. The bottle is so small, the water there evaporates in a few days. ### ⭐⭐⭐⭐ Humidity *by A***R on 14 February 2019* Good product .. Very accurate ## Frequently Bought Together - Sper Scientific 736740 Mason's Hygrometer - Apera Instruments Premium-Series PH60S Food pH Pocket Tester Kit, Swiss Spear pH Electrode, ±0.01 pH Accuracy, -2.00-16.00 pH Range (AI313) - Weigh Boats Medium (100ml, 125 Pack) Disposable Plastic Trays for Scale, Anti-Static Square Tray Weighing Dishes, Polystyrene Lab Dish for Powder Weight, Mixing Epoxy, Food Sample Container, Pour Boat --- ## 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.ma/products/223411347-sper-scientific-736740-masons-hygrometer](https://www.desertcart.ma/products/223411347-sper-scientific-736740-masons-hygrometer) --- *Product available on Desertcart Morocco* *Store origin: MA* *Last updated: 2026-08-15*