--- product_id: 21187542 title: "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" brand: "sper scientific" price: "S$241" currency: SGD in_stock: true category: "Sper Scientific" url: https://www.desertcart.sg/products/21187542-sper-scientific-736700-sling-psychrometer-5-c-to-50-c store_origin: SG region: Singapore --- # Battery-free, eco-friendly ±0.5°C precision accuracy Wide temp range -5°C to 50°C 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 **Brand:** sper scientific **Price:** S$241 **Availability:** ✅ In Stock ## Summary > 🌬️ Swing into precision — master humidity like a pro! ## Quick Answers - **What is this?** 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 by sper scientific - **How much does it cost?** S$241 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.sg](https://www.desertcart.sg/products/21187542-sper-scientific-736700-sling-psychrometer-5-c-to-50-c) ## 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 - • **Precision You Can Trust:** Achieve ultra-accurate humidity readings with ±0.5°C temperature accuracy for professional-grade results. - • **Timeless Analog Reliability:** Manual wet & dry bulb thermometers ensure consistent, maintenance-free readings without digital calibration headaches. - • **Rugged Portability for Field Pros:** Lightweight yet durable design built to withstand demanding fieldwork in meteorology, agriculture, and industrial settings. - • **Effortless, Battery-Free Operation:** No batteries, no fuss—just swing and measure using natural evaporation for reliable, sustainable performance. - • **Versatile Environmental Monitoring:** Seamlessly measure conditions from freezing cold to warm climates (-5°C to 50°C) for HVAC, labs, and outdoor use. ## Overview The Sper Scientific 736700 Sling Psychrometer is a professional-grade analog hygrometer designed for precise relative humidity and temperature measurement across a broad range (-5°C to 50°C). Its battery-free, manual wet and dry bulb system delivers reliable, eco-friendly readings ideal for HVAC specialists, meteorologists, and lab professionals who demand accuracy and durability in the field. ## 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. ## 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 | #493,368 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #710 in Weather Thermometers | | Brand | Sper Scientific | | Brand Name | Sper Scientific | | Customer Reviews | 4.7 out of 5 stars 8 Reviews | | Global Trade Identification Number | 00816366020510 | | Item Dimensions W x H | 6"W x 8.5"H | | Item Weight | 3.84 ounces | | Manufacturer | Sper Scientific | | Model | 736700 | | Mounting Type | Tabletop | | Number of Items | 1 | | Operating Humidity | 0-95 % | | Part Number | 736700 | | Product Dimensions | 6"W x 8.5"H | | Temperature Accuracy | 0.5 | | Temperature Reading Accuracy | plus_minus_0_point_5_degrees_celsius | | UPC | 816366020510 | | Unit Count | 1 Count | | Upper Temperature Range | 50 °C | | 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 ![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 - Image 1](https://m.media-amazon.com/images/I/51CplDPnBfL.jpg) ![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 - Image 2](https://m.media-amazon.com/images/I/31acPsFgrNL.jpg) ## 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.sg/products/21187542-sper-scientific-736700-sling-psychrometer-5-c-to-50-c](https://www.desertcart.sg/products/21187542-sper-scientific-736700-sling-psychrometer-5-c-to-50-c) --- *Product available on Desertcart Singapore* *Store origin: SG* *Last updated: 2026-10-13*