--- product_id: 21187542 title: "736700 Sling Psychrometer -5°C to 50°C - Professional Whirling Hygrometer for Accurate Humidity & Temperature Measurement - Wet & Dry Bulb Thermometer for HVAC & Weather Monitoring" brand: "sper scientific" price: "VT56262" currency: VUV in_stock: true reviews_count: 2 category: "Sper Scientific" url: https://www.desertcart.vu/products/21187542-736700-sling-psychrometer-5-c-to-50-c-professional-whirling store_origin: VU region: Vanuatu --- # Battery-free, eco-friendly Precision ±0.5°C accuracy Wide temp range -5°C to 50°C 736700 Sling Psychrometer -5°C to 50°C - Professional Whirling Hygrometer for Accurate Humidity & Temperature Measurement - Wet & Dry Bulb Thermometer for HVAC & Weather Monitoring **Brand:** sper scientific **Price:** VT56262 **Availability:** ✅ In Stock ## Summary > 🌬️ Swing into precision — measure humidity like a pro, anywhere, anytime! ## Quick Answers - **What is this?** 736700 Sling Psychrometer -5°C to 50°C - Professional Whirling Hygrometer for Accurate Humidity & Temperature Measurement - Wet & Dry Bulb Thermometer for HVAC & Weather Monitoring by sper scientific - **How much does it cost?** VT56262 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.vu](https://www.desertcart.vu/products/21187542-736700-sling-psychrometer-5-c-to-50-c-professional-whirling) ## 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 - • **Rugged & Portable:** Lightweight yet durable design built for on-the-go HVAC, meteorology, and agricultural pros. - • **Zero Battery Hassle:** Completely mechanical operation means no batteries, no downtime—just reliable, sustainable performance. - • **Precision You Can Trust:** Accurate relative humidity via wet & dry bulb thermometers for professional-grade readings. - • **Versatile Temperature Range:** Operates flawlessly from -5°C to 50°C, perfect for diverse environments from labs to outdoor fieldwork. - • **Pro-Approved & User Friendly:** Favored by scientists and weather experts alike for dependable, easy-to-use humidity monitoring. ## Overview The Sper Scientific 736700 Sling Psychrometer is a professional-grade, battery-free hygrometer that measures relative humidity and temperature with ±0.5°C accuracy across a broad -5°C to 50°C range. Its durable, portable design makes it ideal for HVAC technicians, meteorologists, and scientists needing reliable, eco-friendly humidity data in the field or lab. ## Description The Sper Scientific Sling Psychrometer (-5°C to 50°C) is a high-precision instrument designed for accurate relative humidity and temperature measurement. Using a wet and dry bulb thermometer system, this psychrometer provides reliable readings without the need for batteries or digital components.This manual hygrometer is widely used in meteorology, greenhouses, laboratories, and industrial settings where accurate humidity control is essential. Simply wet the cloth wick, swing the psychrometer, and compare the dry-bulb and wet-bulb temperatures using a psychrometric chart to determine humidity levels. Review: Quality - This device is on a par with the best devices made. I am impressed with the effort to protect the thermometers and the means to keep the wet sock wet. Not inexpensive but you get what you pay for. Review: Quality device - Works great ## Features - ACCURATE HUMIDITY MEASUREMENT – The Sper Scientific Sling Psychrometer provides precise relative humidity readings using the wet and dry bulb temperature method, ideal for professional and industrial applications. - WIDE TEMPERATURE RANGE (-5°C to 50°C) – Measures temperatures from -5°C to 50°C, making it perfect for a variety of environments, including cold storage, outdoor weather monitoring, and laboratory use. - DURABLE & PORTABLE DESIGN – Built with high-quality materials, this lightweight yet sturdy psychrometer is easy to carry and ideal for field use in HVAC, meteorology, and agriculture. - BATTERY-FREE OPERATION – No need for batteries or digital calibration; simply swing the psychrometer to measure humidity using natural evaporation for highly reliable results. - IDEAL FOR PROFESSIONAL & PERSONAL USE – Perfect weather analysts, scientists, and hobbyists who need a dependable and accurate humidity measuring too. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B001EU9OVG | | Battery Description | None (not battery powered) | | Best Sellers Rank | #414,593 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #645 in Weather Thermometers | | Brand Name | Sper Scientific | | Customer Reviews | 4.7 4.7 out of 5 stars (7) | | Global Trade Identification Number | 00816366020510 | | Item Dimensions W x H | 6"W x 8.5"H | | Item Weight | 3.84 ounces | | Manufacturer | Sper Scientific | | Mounting Type | Tabletop | | Temperature Accuracy | 0.5 | | UPC | 816366020510 | | Unit Count | 1 Count | | Upper Temperature Range | 50 Degrees Celsius | | Voltage | 0.01 Volts | ## Product Details - **Battery Description:** None (not battery powered) - **Brand:** Sper Scientific - **Item Weight:** 3.84 ounces - **Mounting Type:** Tabletop - **Product Dimensions:** 6"W x 8.5"H ## Images ![736700 Sling Psychrometer -5°C to 50°C - Professional Whirling Hygrometer for Accurate Humidity & Temperature Measurement - Wet & Dry Bulb Thermometer for HVAC & Weather Monitoring - Image 1](https://m.media-amazon.com/images/I/51CplDPnBfL.jpg) ## Available Options This product comes in different **Size** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Quality *by M***N on December 17, 2019* This device is on a par with the best devices made. I am impressed with the effort to protect the thermometers and the means to keep the wet sock wet. Not inexpensive but you get what you pay for. ### ⭐⭐⭐⭐⭐ Quality device *by M***O on January 28, 2023* Works great ## Frequently Bought Together - Sper Scientific 736700 Sling Psychrometer -5°C to 50°C - Professional Whirling Hygrometer for Accurate Humidity & Temperature Measurement - Wet & Dry Bulb Thermometer for HVAC & Weather Monitoring - UEi Test Instruments PDT650 Folding Pocket Digital Thermometer,Yellow - Appion MGAVCT 1/4" MegaFlow Vacuum-Rated Valve Core Removal Tool --- ## 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.vu/products/21187542-736700-sling-psychrometer-5-c-to-50-c-professional-whirling](https://www.desertcart.vu/products/21187542-736700-sling-psychrometer-5-c-to-50-c-professional-whirling) --- *Product available on Desertcart Vanuatu* *Store origin: VU* *Last updated: 2026-05-06*