--- 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: "Rp1007133" currency: IDR in_stock: true reviews_count: 13 category: "Eray" url: https://www.desertcart.id/products/33320768-digital-psychrometer-thermometer-hygrometer-with-backlight-eray-temperature-and-humidity store_origin: ID region: Indonesia --- # 0-100% RH humidity accuracy 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:** Rp1007133 **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?** Rp1007133 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.id](https://www.desertcart.id/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 - • **Pro-Grade Utility:** Ideal for HVAC pros, home inspectors, wine cellar caretakers, and data room managers alike. - • **Read Anytime, Anywhere:** Backlit LCD ensures crystal-clear data visibility even in pitch darkness. - • **Precision You Can Trust:** Accurate measurements with ±1°C temperature precision and full humidity spectrum. - • **User-Friendly Versatility:** Switch easily between °C/°F and modes with Max/Min hold & auto-shutdown for battery saving. - • **All-in-One Climate Insight:** Combine temperature, humidity, dew point & wet bulb readings in one sleek device. ## Overview The ERAY Digital Psychrometer Thermometer Hygrometer is a professional-grade 2-in-1 device measuring 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 precise ±1°C accuracy, versatile unit switching, and energy-saving auto shutdown. Powered by a 9V battery and designed for diverse applications from HVAC to wine cellars, it delivers reliable environmental data for informed decision-making. ## Description Product description What You Can Get? 1* Digital Temperature and Humidity Gauge 1* 9V Battery 1* User Manual Thermo-Hygrometer Temperature & Humidity Dual Display Backlight Auto off after 40s Auto Power off after about 12 min Max/Min Data Hold °C & °F Unit Switch Specifications Temperature Measurement Range: -30 °C~60 °C (-22 °F~140 °F) Humidity Measurement Range: 0~100 percent RH Dewpoint Temperature: -50 °C~60 °C (-58 °F~140 °F) Wet Bulb Temperature: -20 °C~60 °C (-4 °F~140 °F) Temperature Accuracy: ±0.5°C/±0.9°F (10~55°C); ±1.5°C/±3°F (all other ranges) Humidity Accuracy: ±3%RH (at 25°C, 10%~90%RH); ±4.5%RH (At other ranges) Resolution: 0.01%RH, 0.01°C/0.01°F Response Time: 10S Sampling Rate: 2.5 samples per second Product Applications Scenarios It is ideal for home, apartment, industrial, agriculture, laboratory, greenhouse, warehouse, restaurant, wine cellar, aquaculture and etc. 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. :-) Review: Great tool to have - This meter works great. Simple to use, easy to read. ## 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 | | Battery Description | 6F22 9V | | Best Sellers Rank | #86,120 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #18 in Humidifier Humidity Meters | | Brand | ERAY | | Brand Name | ERAY | | Color | Yellow | | Customer Reviews | 4.3 out of 5 stars 923 Reviews | | Included Components | A Digital Psychrometer Thermometer Hygrometer and 9V Battery Included | | Item Dimensions W x H | 6.89"W x 1.38"H | | Item Weight | 0.16 Kilograms | | Manufacturer | ERAY | | Model | SR-Y86 | | Mounting Type | Tabletop | | Operating Humidity | 0~100 percent RH | | Part Number | SR-Y86 | | Product Dimensions | 6.89"W x 1.38"H | | Smart Home Compatibility | Not Smart Home Compatible | | Temperature Accuracy | 1°C | | UPC | 708315157456 | | Unit Count | 1 Count | | Upper Temperature Range | 60 Degrees Celsius | | Voltage | 9 Volts | | Warranty Description | 12 months warranty | ## 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) ![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 2](https://m.media-amazon.com/images/I/61QW49YKlwL.jpg) ![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 3](https://m.media-amazon.com/images/I/615YosTLBSL.jpg) ![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 4](https://m.media-amazon.com/images/I/61+GaoIuLXL.jpg) ![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 5](https://m.media-amazon.com/images/I/61f56EXlA2L.jpg) ## Available Options This product comes in different **Color** options. ## 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 ### ⭐⭐⭐⭐⭐ 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. :-) ### ⭐⭐⭐⭐⭐ Great tool to have *by M***H on August 13, 2025* This meter works great. Simple to use, easy to read. ### ⭐⭐⭐⭐ 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 --- ## 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.id/products/33320768-digital-psychrometer-thermometer-hygrometer-with-backlight-eray-temperature-and-humidity](https://www.desertcart.id/products/33320768-digital-psychrometer-thermometer-hygrometer-with-backlight-eray-temperature-and-humidity) --- *Product available on Desertcart Indonesia* *Store origin: ID* *Last updated: 2026-05-14*