---
product_id: 16904815
title: "Sper Scientific 736740 Mason's Hygrometer"
brand: "sper scientific"
price: "₹ 3861"
currency: INR
in_stock: true
category: "Sper Scientific"
url: https://www.desertcart.in/products/16904815-sper-scientific-736740-masons-hygrometer
store_origin: IN
region: India
---

# Wet bulb tech for precise humidity Safe, vivid red liquid display Dual temp scales -10/50°C & 10/120°F Sper Scientific 736740 Mason's Hygrometer

**Brand:** sper scientific
**Price:** ₹ 3861
**Availability:** ✅ In Stock

## Summary

> 💧 Stay ahead of the curve with precision humidity insights!

## Quick Answers

- **What is this?** Sper Scientific 736740 Mason's Hygrometer by sper scientific
- **How much does it cost?** ₹ 3861 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.in](https://www.desertcart.in/products/16904815-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

- • **Mercury-free safety:** Red liquid ensures a non-toxic, eco-friendly alternative to traditional mercury.
- • **Battery-free operation:** Always ready—no batteries needed for hassle-free, sustainable use.
- • **Compact tabletop design:** Sleek and portable, fits perfectly on any desk or shelf for quick reference.
- • **Dual temperature scales:** Seamlessly switch between Celsius and Fahrenheit for global usability.
- • **Precision humidity measurement:** Wet bulb and dry bulb readings deliver accurate indoor climate insights.

## Overview

The Sper Scientific 736740 Mason's Hygrometer uses classic wet and dry bulb thermometry with a safe red liquid indicator to provide accurate humidity readings. Featuring dual temperature scales (-10 to 50°C and 10 to 120°F), it operates battery-free and is designed for convenient tabletop use, making it an essential tool for professionals monitoring indoor climate conditions.

## 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.

## 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 |
| Best Sellers Rank | #248,318 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #106 in Weather Hygrometers |
| Brand | Sper Scientific |
| Brand Name | Sper Scientific |
| Color | White |
| Customer Reviews | 4.0 out of 5 stars 37 Reviews |
| Included Components | Hygrometer |
| Item Weight | 3.8 Ounces |
| Manufacturer | Sper Scientific |
| Model | 736740 |
| Mounting Type | Tabletop |
| Part Number | 736740 |
| Smart Home Compatibility | Not Smart Home Compatible |
| Temperature Accuracy | 5.56 |
| UPC | 077754662617 696738569263 |
| Unit Count | 1 Count |
| Upper Temperature Range | 120 Degrees Fahrenheit |
| Upper Temperature Rating | 120 Degrees Fahrenheit |

## Product Details

- **Battery Description:** No batteries required
- **Brand:** Sper Scientific
- **Color:** White
- **Item Weight:** 3.8 Ounces
- **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.

## 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

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*Product available on Desertcart India*
*Store origin: IN*
*Last updated: 2026-07-08*