---
product_id: 33320768
title: "Digital Psychrometer Thermometer Hygrometer with Backlight, ERAY Temperature and Humidity Reader Meter Thermo-Hygrometer with Dew Point and Wet Bulb Temperature, 9V Battery Included(Yellow)"
brand: "eray"
price: "E£ 3863"
currency: EGP
in_stock: true
reviews_count: 13
category: "Eray"
url: https://www.desertcart.com.eg/products/33320768-digital-psychrometer-thermometer-hygrometer-with-backlight-eray-temperature-and-humidity
store_origin: EG
region: Egypt
---

# Humidity 0-100% RH Backlit LCD for dark reading Temp range -30°C to 60°C Digital Psychrometer Thermometer Hygrometer with Backlight, ERAY Temperature and Humidity Reader Meter Thermo-Hygrometer with Dew Point and Wet Bulb Temperature, 9V Battery Included(Yellow)

**Brand:** eray
**Price:** E£ 3863
**Availability:** ✅ In Stock

## Summary

> 🌟 Stay ahead of the climate curve with ERAY’s all-in-one digital psychrometer!

## Quick Answers

- **What is this?** Digital Psychrometer Thermometer Hygrometer with Backlight, ERAY Temperature and Humidity Reader Meter Thermo-Hygrometer with Dew Point and Wet Bulb Temperature, 9V Battery Included(Yellow) by eray
- **How much does it cost?** E£ 3863 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.eg](https://www.desertcart.com.eg/products/33320768-digital-psychrometer-thermometer-hygrometer-with-backlight-eray-temperature-and-humidity)

## Best For

- eray enthusiasts

## Why This Product

- Trusted eray brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Read Anywhere, Anytime:** Backlit LCD ensures crystal-clear data visibility even in pitch darkness.
- • **Precision You Can Trust:** Accurate measurements with ±1°C temperature precision for professional-grade monitoring.
- • **User-Friendly Versatility:** Switch easily between °C/°F and modes with Max/Min hold and auto-shutdown for convenience.
- • **All-in-One Climate Insight:** Combines temperature, humidity, dew point & wet bulb readings in one sleek device.
- • **Built for Every Environment:** Ideal for HVAC pros, home inspectors, wine cellar caretakers, and data room managers alike.

## Overview

The ERAY Digital Psychrometer Thermometer Hygrometer is a professional-grade 2-in-1 device that measures temperature (-30°C to 60°C), humidity (0-100% RH), dew point, and wet bulb temperature. Featuring a backlit LCD for easy reading in low light, it offers versatile unit switching, Max/Min hold functions, and auto-shutdown for energy efficiency. Powered by an included 9V battery, this compact, durable tool is perfect for HVAC, agriculture, meteorology, and home environment monitoring.

## Description

Buy Digital Psychrometer Thermometer Hygrometer with Backlight, ERAY Temperature and Humidity Reader Meter Thermo-Hygrometer with Dew Point and Wet Bulb Temperature, 9V Battery Included(Yellow): Humidity Meters - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: Great tool to have - This meter works great. Simple to use, easy to read.
Review: No Way I Thought This One is Way Inexpensive Compared to Others - But glad I purchase it after much comparisons. Still working today and seems accurate data so far. Very handy to have just in case you see or smell something off in the basement or attic. I've had and used this now for over a year. Today when I write reviews I like to do so after several months or at the most when appropriate for the use/utility of the product up to a year of ownership and performance to inform other consumers like they informed me of my purchase--when I would be relying on their reviews for quality and useful products for our house and family. Just paying it forward. Amd this one is worth the price and quality! I bought this along with a pin moisture tester and infrared meter same year last year as new homeowners. This and those others are good to always have to test your household environment for safety and prevent costly repairs. Better to be informed and have data of science in order to be prepared. :-)

## Features

- 2-IN-1: This digital psychrometer is designed to combine the functions of humidity meter, temperature meter, wet bulb and dew point temperature. The dew point is a measure of how much water vapor actually in the air
- BACKLIGHT LCD DISPLY: ERAY temperature and humidity gauge is equipped with a bulb light in the LCD screen, user can easy to read the measurements in the darkness
- DUAL DISPLAY: Temperature range: -30 °C~60 °C (-22 °F~140 °F); Humidity range: 0~100 percent RH; Wet bulb/ Dew point temperature range: -50 °C~60 °C (-58 °F~140 °F)
- EASY TO USE: Unit switcher: °C and °F; Temperatue mode switcher: normal, dewpoint and wet bulb), Max Hold and Min Hold Function; Auto shutdown without operation after 12 minutes
- WIDELY USED: Used for HVAC, industry, agriculture, meteorology, medical, daily life, building engineer, paranormal investigator, in wine cellar, machine room, data storeroom and etc

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B01FGV28E8 |
| Batteries | 1 9V batteries required. (included) |
| Batteries Included? | Yes |
| Batteries Required? | Yes |
| Battery Cell Type | Manganese |
| Battery Description | 6F22 9V |
| Best Sellers Rank | #127,536 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #20 in Humidifier Humidity Meters |
| Brand | ERAY |
| Brand Name | ERAY |
| Certification | Ce |
| Color | Yellow |
| Customer Reviews | 4.4 4.4 out of 5 stars (910) |
| Date First Available | September 8, 2016 |
| Description Pile | 6F22 9V |
| Included Components | A Digital Psychrometer Thermometer Hygrometer and 9V Battery Included |
| Is Discontinued By Manufacturer | No |
| Item Weight | 5.6 ounces |
| Item model number | SR-Y86 |
| Manufacturer | ERAY |
| Material Type | ABS |
| Model Info | SR-Y86 |
| Mounting Type | Tabletop |
| Part Number | SR-Y86 |
| Product Dimensions | 6.89"W x 1.38"H |
| Special Features | Non-Contact |
| Temperature Accuracy | 1°C |
| UPC | 708315157456 |
| Upper Temperature Rating | 60 Degrees Celsius |
| Voltage | 9 Volts |

## Product Details

- **Battery Description:** 6F22 9V
- **Brand:** ERAY
- **Color:** Yellow
- **Item Weight:** 0.16 Kilograms
- **Product Dimensions:** 6.89"W x 1.38"H

## Images

![Digital Psychrometer Thermometer Hygrometer with Backlight, ERAY Temperature and Humidity Reader Meter Thermo-Hygrometer with Dew Point and Wet Bulb Temperature, 9V Battery Included(Yellow) - Image 1](https://m.media-amazon.com/images/I/617khE1fE8L.jpg)

## Questions & Answers

**Q: Will this read temps immediately from room to room?**
A: it takes a moment to adjust. when temp stops that is it

**Q: Can it read dry bulb temps for outside A/C condensing units**
A: Dry bulb is just ambient temp...stick your thermometer or thermistor in the air and thats your dry bulb..thats why you never see these devices as listed for dry bulb because its just the regular temp reading..

**Q: Can I use this for reptile terrariums?**
A: Yes, you can.

**Q: Is there any way to have the backlight stay on constantly?**
A: Sorry, no way. For longer battery life, factory default the backlight will be off after 40s.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great tool to have
*by M***H on August 13, 2025*

This meter works great. Simple to use, easy to read.

### ⭐⭐⭐⭐⭐ No Way I Thought This One is Way Inexpensive Compared to Others
*by C***N on July 18, 2023*

But glad I purchase it after much comparisons. Still working today and seems accurate data so far. Very handy to have just in case you see or smell something off in the basement or attic. I've had and used this now for over a year. Today when I write reviews I like to do so after several months or at the most when appropriate for the use/utility of the product up to a year of ownership and performance to inform other consumers like they informed me of my purchase--when I would be relying on their reviews for quality and useful products for our house and family. Just paying it forward. Amd this one is worth the price and quality! I bought this along with a pin moisture tester and infrared meter same year last year as new homeowners. This and those others are good to always have to test your household environment for safety and prevent costly repairs. Better to be informed and have data of science in order to be prepared. :-)

### ⭐⭐⭐⭐ Good stand-alone data logger for voltage measurements, 1% resolution
*by A***R on November 3, 2016*

The data logger was received with a defective mini disc that contained the software for setup and use of the instrument. After contacting the vendor, I was able to receive a web link that allowed me to download the same image of the files that were on the disc. This worked much better and allowed full use of the device. 4 stars are given due to the issue with the disc and the vendor not having a way to provide the files via web link in the literature received with the unit. I will be using this logger to record the water pressure readings from a faucet at our house for monitoring changes in pressure over a several day period. The logger suits the job well since it has a settable scale and a resolution of 2 decimal places (e.g., 10 mV resolution). Connected to a pressure gauge, I will be able to record changes in pressure with 0.5 psi resolution, more than enough. And I can set and forget the reading for several days at a time and then plug the logger into my computer to graph the results.

## Frequently Bought Together

- Digital Psychrometer Thermometer Hygrometer with Backlight, ERAY Temperature and Humidity Reader Meter Thermo-Hygrometer with Dew Point and Wet Bulb Temperature, 9V Battery Included(Yellow)
- General Tools MMD4E Digital Moisture Meter, Water Leak Detector, Moisture Tester, Pin Type, Backlit LCD Display With Audible and Visual High-Medium-Low Moisture Content Alerts, Grays

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*Product available on Desertcart Egypt*
*Store origin: EG*
*Last updated: 2026-02-01*