---
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: "40352 som"
currency: KGS
in_stock: true
reviews_count: 2
category: "Sper Scientific"
url: https://www.desertcart.kg/products/21187542-sper-scientific-736700-sling-psychrometer-5-c-to-50-c
store_origin: KG
region: Kyrgyzstan
---

# Battery-free, manual swing operation ±0.5°C precision accuracy Wide -5°C to 50°C range 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:** 40352 som
**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?** 40352 som with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.kg](https://www.desertcart.kg/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

- • **Rugged Portability:** Lightweight yet durable design built to withstand fieldwork in HVAC, meteorology, and agriculture.
- • **Eco-Friendly & Reliable:** No batteries needed—harness natural evaporation for consistent, maintenance-free use.
- • **Precision You Can Trust:** Achieve ±0.5°C accuracy for professional-grade humidity and temperature readings.
- • **Timeless Analog Classic:** Manual wet/dry bulb method ensures dependable readings without digital distractions.
- • **Versatile Temperature Range:** From chilly -5°C to warm 50°C, perfect for diverse environments and industries.

## Overview

The Sper Scientific 736700 Sling Psychrometer is a professional-grade analog hygrometer designed for accurate relative humidity and temperature measurement across a broad -5°C to 50°C range. Its battery-free, manual swing operation leverages the wet and dry bulb thermometer method, delivering ±0.5°C precision ideal for HVAC, meteorology, labs, and agriculture. Lightweight and durable, it’s the go-to tool for professionals demanding reliable, eco-friendly humidity monitoring in any environment.

## 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 | #148,614 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #394 in Weather Thermometers |
| Brand | Sper Scientific |
| Date First Available | September 16, 2008 |
| Global Trade Identification Number | 00816366020510 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 3.84 ounces |
| Item model number | 736700 |
| Manufacturer | Sper Scientific |
| Mounting Type | Tabletop |
| Product Dimensions | 6"W x 8.5"H |
| Temperature Accuracy | 0.5 |
| Temperature Reading Accuracy | plus_minus_0_point_5_degrees_celsius |
| UPC | 816366020510 |
| Upper Temperature Rating | 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

![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/21DMGp3bg6L.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/31HqA53SPSL.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 3](https://m.media-amazon.com/images/I/31acPsFgrNL.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 4](https://m.media-amazon.com/images/I/41sVk96jpCL.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 5](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

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*Product available on Desertcart Kyrgyzstan*
*Store origin: KG*
*Last updated: 2026-02-07*