--- product_id: 179196541 title: "EISCO Wet-Dry Bulb Hygrometer, Wall Mounted Thermometers" brand: "eisco" price: "SAR 173" currency: SAR in_stock: true reviews_count: 8 category: "Eisco" url: https://www.desertcart.com.sa/products/179196541-eisco-wet-dry-bulb-hygrometer-wall-mounted-thermometers store_origin: SA region: Saudi Arabia --- # Evaporation-based wet bulb cooling Compact 11.5" x 3" wall-mounted design Dual thermometers for precise humidity EISCO Wet-Dry Bulb Hygrometer, Wall Mounted Thermometers **Brand:** eisco **Price:** SAR 173 **Availability:** ✅ In Stock ## Summary > 🌬️ Stay ahead of the humidity curve with precision you can see! ## Quick Answers - **What is this?** EISCO Wet-Dry Bulb Hygrometer, Wall Mounted Thermometers by eisco - **How much does it cost?** SAR 173 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.com.sa](https://www.desertcart.com.sa/products/179196541-eisco-wet-dry-bulb-hygrometer-wall-mounted-thermometers) ## Best For - eisco enthusiasts ## Why This Product - Trusted eisco brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Space-Smart Wall Mount:** Sleek, compact design fits seamlessly in classrooms, labs, or home walls without clutter. - • **No Batteries, No Hassle:** Completely mechanical operation means zero maintenance and instant readings anytime. - • **Evaporation-Cooled Accuracy:** Wet bulb evaporation cools the sensor naturally, ensuring reliable water vapor measurement. - • **Precision Humidity Tracking:** Dual dry & wet bulb thermometers deliver accurate relative humidity readings for your environment. - • **Educational & Professional Ready:** Ideal for science demos, environmental monitoring, and meteorology enthusiasts aiming to impress. ## Overview The EISCO Wet-Dry Bulb Hygrometer is a wall-mounted dual thermometer device that measures relative humidity by comparing temperatures of a dry and a wet bulb. Its evaporation-based cooling method provides accurate water vapor content readings without batteries, making it perfect for educational, laboratory, and home use in monitoring environmental conditions. ## Description The Eisco wet-dry bulb hygrometer is a wall-mounted device designed to measure relative humidity and water vapor content in the air. It consists of two identical thermometers, one with a dry bulb and one with a wet bulb, to determine humidity levels by comparing temperature differences.When exposed to airflow, water from the wet bulb wick evaporates, cooling the thermometer. The drier the air, the greater the temperature difference between the two thermometers. This device is an excellent tool for classroom demonstrations, laboratory experiments, and environmental studies. Review: wet/dry bulb - Excellent for tracking humidity in the house summer and winter. Quite accurate - checked both bulbs in ice water that had stabilized at 32F. Both reading were spot on 32F. My last one (dropped it and broke) was off about 2F on the wet bulb. I managed to move the glass - checked it again - then put a drop of superglue on one of the hold downs. It is not super lab quality (I'm a chemist), but for the $23 it is a very good instrument. Review: Junk - DO NOT PURCHASE. IT IS NOT RETURNABLE IF DEFECTIVE!!! The two thermometers do not read the same temperature when both are dry. One reads 65f the other 100f. TOTAL RIP OFF. DO NOT PURCHASE> ## Features - DUAL THERMOMETER DESIGN || Features two identical thermometers, one with a dry bulb and one with a wet bulb, for accurate relative humidity measurement. - MEASURES HUMIDITY & WATER VAPOR || Helps determine the water vapor content in the air by comparing the temperature difference between the dry and wet bulbs. - WALL-MOUNTED DESIGN || Compact and convenient for home, school, or laboratory use. Measures 11.5" long, 3" wide, and 0.5" thick. - EVAPORATION-BASED COOLING || As water evaporates from the wet bulb, it cools the thermometer, allowing for precise humidity readings when exposed to airflow. - IDEAL FOR CLASSROOM & LAB USE || Perfect for educational demonstrations in physics, environmental science, and meteorology studies. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07SLC169Q | | Battery Description | No batteries needed | | Best Sellers Rank | #214,655 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #336 in Weather Thermometers | | Brand | EISCO | | Brand Name | EISCO | | Customer Reviews | 3.6 out of 5 stars 24 Reviews | | Item Dimensions W x H | 3"W x 11.5"H | | Item Weight | 4.8 ounces | | Manufacturer | Eisco | | Mounting Type | Wall Mount | | Number of Items | 1 | | Number of Packs | 1 | | Operating Humidity | 0% to 100% | | Part Number | PH0232B | | Product Dimensions | 3"W x 11.5"H | | Temperature Accuracy | 1 | | UPC | 849230038021 | | Unit Count | 1 Count | | Upper Temperature Range | 120 °F | ## Product Details - **Battery Description:** No batteries needed - **Brand:** EISCO - **Item Weight:** 4.8 ounces - **Mounting Type:** Wall Mount - **Product Dimensions:** 3"W x 11.5"H ## Images ![EISCO Wet-Dry Bulb Hygrometer, Wall Mounted Thermometers - Image 1](https://m.media-amazon.com/images/I/710uSDxXL7L.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ wet/dry bulb *by J***D on May 27, 2021* Excellent for tracking humidity in the house summer and winter. Quite accurate - checked both bulbs in ice water that had stabilized at 32F. Both reading were spot on 32F. My last one (dropped it and broke) was off about 2F on the wet bulb. I managed to move the glass - checked it again - then put a drop of superglue on one of the hold downs. It is not super lab quality (I'm a chemist), but for the $23 it is a very good instrument. ### ⭐ Junk *by R***B on November 16, 2024* DO NOT PURCHASE. IT IS NOT RETURNABLE IF DEFECTIVE!!! The two thermometers do not read the same temperature when both are dry. One reads 65f the other 100f. TOTAL RIP OFF. DO NOT PURCHASE> ### ⭐⭐⭐⭐ Understanding the relationship of humidity and temperature *by R***Z on September 12, 2023* Educational and fun to calculate although the chart is in small type. ## Frequently Bought Together - EISCO Wet-Dry Bulb Hygrometer, Wall Mounted Thermometers - Springfield Indoor Outdoor Big and Bold Dial Thermometer, Wireless Thermometer with Easy to Read Large Numbers for Patio, Pool, and Indoor Areas, 8-Inch, White --- ## 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.com.sa/products/179196541-eisco-wet-dry-bulb-hygrometer-wall-mounted-thermometers](https://www.desertcart.com.sa/products/179196541-eisco-wet-dry-bulb-hygrometer-wall-mounted-thermometers) --- *Product available on Desertcart Saudi Arabia* *Store origin: SA* *Last updated: 2026-09-17*