--- product_id: 23678036 title: "PT6508 Temperature Humidity Meter - Wet Bulb for Indoor/Outdoor | Digital Thermometer Hygrometer Monitor with Ambient, Dew Point, MIN, MAX, Data Hold, LCD Backlight" brand: "protmex" price: "$122.03" currency: USD in_stock: true reviews_count: 13 category: "Protmex" url: https://www.desertcart.us/products/23678036-pt6508-temperature-humidity-meter-wet-bulb-for-indoor-outdoor-digital store_origin: US region: United States of America --- # Humidity 0%-100% RH MIN/MAX & Data Hold Temp range -20Β°C to 60Β°C PT6508 Temperature Humidity Meter - Wet Bulb for Indoor/Outdoor | Digital Thermometer Hygrometer Monitor with Ambient, Dew Point, MIN, MAX, Data Hold, LCD Backlight **Brand:** protmex **Price:** $122.03 **Availability:** βœ… In Stock ## Summary > 🌟 Master your environment with Protmex PT6508 β€” because precision is power! ## Quick Answers - **What is this?** PT6508 Temperature Humidity Meter - Wet Bulb for Indoor/Outdoor | Digital Thermometer Hygrometer Monitor with Ambient, Dew Point, MIN, MAX, Data Hold, LCD Backlight by protmex - **How much does it cost?** $122.03 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/23678036-pt6508-temperature-humidity-meter-wet-bulb-for-indoor-outdoor-digital) ## Best For - protmex enthusiasts ## Why This Product - Trusted protmex brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Smart Data Management:** Includes MIN/MAX tracking, data hold, auto shutdown, and low battery alerts to keep you informed and efficient. - β€’ **Precision You Can Trust:** High-accuracy sensor with Β±1.5Β°C temperature precision ensures reliable data every time. - β€’ **All-in-One Climate Insight:** Combines temperature, humidity, dew point & wet bulb readings for total environmental control. - β€’ **User-Friendly LCD Backlight:** Bright, easy-to-read dual display with backlight for clear monitoring day or night. - β€’ **Versatile Indoor/Outdoor Use:** Wide operating range (-20Β°C to 60Β°C) perfect for HVAC, agriculture, wine cellars, and more. ## Overview The Protmex PT6508 is a professional-grade digital thermometer and hygrometer that measures temperature, humidity, dew point, and wet bulb temperature with high accuracy. Designed for both indoor and outdoor use, it features a bright LCD backlight, data hold, MIN/MAX functions, and automatic shutdown, making it ideal for HVAC professionals, agricultural experts, and anyone serious about environmental monitoring. ## Description Buy Protmex PT6508 Temperature Humidity Meter - Wet Bulb for Indoor/Outdoor | Digital Thermometer Hygrometer Monitor with Ambient, Dew Point, MIN, MAX, Data Hold, LCD Backlight: Humidity Meters - desertcart.com βœ“ FREE DELIVERY possible on eligible purchases Review: Pro quality hygrometer - Took a chance on this not well-known brand. I've been using this in my HVAC career. It is accurate and very easy to use. I can honestly say it's the best hygrometer I've tried yet. It has regular dry bulb and relative humidity readings.. It also has dew point and wet bulb temperature readings. And many other features also. For the he price, this one is a winner Review: If you want to save hundreds of dollars and want a reliable meter look right here - This thing is really a great tool for the price.. as a hvac-r technician having the right tools is crucial when diagnosing a problem especially in ac season. I needed a hygrometer for a job to prove that the reason for all the ric were condensing and spilling out on to the floor was the amount of humidity in the store at that moment.. I don't ever buy cheap tools especially meters. I have Testo guage, probes, multimeter, thermal imaging camera, leak detector, micrometer guage, pyrometer, scale, manometer, and so forth that link to the Testo smart app so I can monitor everything right from my phone.. love it. But seeing as this is the first time I needed one in years I was not wanting to spend $500 bucks on a Testo that will just sit in the van.. after reading reviews and researching hygrometers I decided to give this a try and I'm glad I did. Works perfectly.. proved the dew point was causing the water on the floor and that the coolers were not leaking... professional meter at a toys-r-us price.. ## Features - PT6508 psychrometer HVAC is a new type of digital temperature and humidity meter, which is designed to combine the functions of a humidity meter, temperature meter, wet bulb temperature, and dew point temperature. And dew point is a measure of how much water vapor is actually in the air. - Dual display humidity and temperature with accurate measuring: Humidity range: 0% - 100%RH. Temperature range: -20℃(-4℉) - 60℃(140℉). Dew point Temperature :-50℃(-58℉) - 60℃(140℉). Wet Bulb Temperature:-20℃(-4℉) - 60℃(140℉). - Digital psychrometers are used for a high range of applications HVAC, including industry, agriculture, meteorology, medicine, daily life, building engineering, paranormal investigator, the wine cellar, machine room, and data storeroom. - Multiple functions: With data retention, data storage, unit conversion, backlight, low battery indicator, automatic shutdown, and maximum and minimum functions. - LCD display with backlight with high accuracy sensor, LCD brighter in the darker places. Auto shutdown without operation after 30 minutes. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B017NF1POE | | Battery Description | Alkaline | | Best Sellers Rank | #12,802 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #6 in Humidifier Humidity Meters #10 in Humidifier Accessories | | Brand | Protmex | | Brand Name | Protmex | | Color | Orange | | Customer Reviews | 4.6 out of 5 stars 897 Reviews | | Global Trade Identification Number | 06051651879433 | | Included Components | 4 x AAA Batteries, 1 x Packing Bag, 1 x Use Manual | | Item Dimensions W x H | 2.36"W x 2.9"H | | Item Length | 7.2 inches | | Item Weight | 0.31 kg | | Manufacturer | PROTMEX | | Model | CECOMINOD046940 | | Mounting Type | Tabletop | | Operating Humidity | 0%-100% | | Part Number | PPM-TI002-3 | | Product Dimensions | 2.36"W x 2.9"H | | Temperature Accuracy | 0.5 degrees_celsius | | Temperature Reading Accuracy | plus_minus_1_point_5_degrees_celsius | | Unit Count | 1 Count | | Upper Temperature Range | 140 Β°F | | Voltage | 1.5 volts | ## Product Details - **Battery Description:** Alkaline - **Brand:** Protmex - **Color:** Orange - **Item Weight:** 0.31 Kilograms - **Product Dimensions:** 2.36"W x 2.9"H ## Images ![PT6508 Temperature Humidity Meter - Wet Bulb for Indoor/Outdoor | Digital Thermometer Hygrometer Monitor with Ambient, Dew Point, MIN, MAX, Data Hold, LCD Backlight - Image 1](https://m.media-amazon.com/images/I/61nr4-mCNML.jpg) ## Available Options This product comes in different **Size** options. ## Questions & Answers **Q: Can the relative humidity be calibrated by the user?** A: Neither relative humidity nor temperature can be calibrated by the user. User's manual does not mention this possibility. **Q: Can this item be sent in for re-calibration periodically, and updated certificate?** A: All the items have been calibrated before sending out, and if you need to calibate again, then you can send it to us for re-calibration, but it will cost a lot of time and shipping fee **Q: ?Viene con el certificado de calibraciΓ³n?** A: Thank you for your question. If you need it you can contact our customer service and we will send you a calibration operation manual, which is recommended to be used under professional personnel and operating equipment. **Q: Has anyone who bought this unit tested it for accuracy?** A: That I do not know. what I can say is that the temperature it shows is close to what the weather people say the temp.s are. I bought it because the local weather people have decided to no longer give the dew points in the forecast. I do know that the higher the dew point reading the device shows the more humid it feels. I also had issue with deciding to just give a date on the map as to when the "Monsoon season" starts and stops. The method of a dew point higher than 55degrees 3 days in a row for the start and below 55 degrees 3 days in a row for the end makes more sense. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Pro quality hygrometer *by K***H on October 20, 2025* Took a chance on this not well-known brand. I've been using this in my HVAC career. It is accurate and very easy to use. I can honestly say it's the best hygrometer I've tried yet. It has regular dry bulb and relative humidity readings.. It also has dew point and wet bulb temperature readings. And many other features also. For the he price, this one is a winner ### ⭐⭐⭐⭐⭐ If you want to save hundreds of dollars and want a reliable meter look right here *by S***8 on April 28, 2026* This thing is really a great tool for the price.. as a hvac-r technician having the right tools is crucial when diagnosing a problem especially in ac season. I needed a hygrometer for a job to prove that the reason for all the ric were condensing and spilling out on to the floor was the amount of humidity in the store at that moment.. I don't ever buy cheap tools especially meters. I have Testo guage, probes, multimeter, thermal imaging camera, leak detector, micrometer guage, pyrometer, scale, manometer, and so forth that link to the Testo smart app so I can monitor everything right from my phone.. love it. But seeing as this is the first time I needed one in years I was not wanting to spend $500 bucks on a Testo that will just sit in the van.. after reading reviews and researching hygrometers I decided to give this a try and I'm glad I did. Works perfectly.. proved the dew point was causing the water on the floor and that the coolers were not leaking... professional meter at a toys-r-us price.. ### ⭐⭐⭐⭐⭐ wish i had this sooner - outstanding for home use *by G***G on June 10, 2020* i used this tool to verify that i in fact would benefit from installing a very expensive Aprilaire 800 humidifier ( with the installation it was over 2 thousand dollars ) ... my worthelss Extech hygrometer ( the home model with big screen ) was telling me that all isn't so bad but my cracked skin was telling me otherwise ... this Protmex confirmed that my skin was telling me the truth and that humidity was abysmal - i went ahead with Aprilaire 800 installation and it was just game changing - no more sore throat, dry eyes, cracked skin etc ... one annoyance is it always starts in Celsius and you have to press the button to switch to F ... wish it remembered my preference. but it's overall well made, 10 times more accurate than Extech and 100 times faster. Extech ( the home model with big screen ) would take about half an hour to stabilize on a ( wrong ) reading when moved from room to room. This unit takes maybe 30 seconds to stabilize on a good reading. When moving from room to room the reading starts changing literally within a second or two of entering a different room ! ! ! It is SO sensitive ! For example if you walk into a bathroom after somebody took a shower there the numbers will start climbing the very moment you walk into that room ! And about 30 seconds later they will pretty much stabilize at a new reading unless the temperature is also different. It takes longer ( about 5 minutes ) when there is a difference in room temperature. all in all outstanding for home use. don't know if it's good enough for professional use. ## Frequently Bought Together - Protmex PT6508 Temperature Humidity Meter, Digital Thermometer Hygrometer Monitor with Ambient, Dew Point, Wet Bulb for Indoor/Outdoor MIN, MAX, Data Hold, LCD Backlight - 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 - Klein Tools ET140 Pinless Moisture Meter for Non-Destructive Moisture Detection in Drywall, Wood, and Masonry; Detects up to 3/4-Inch Below Surface --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.us/products/23678036-pt6508-temperature-humidity-meter-wet-bulb-for-indoor-outdoor-digital](https://www.desertcart.us/products/23678036-pt6508-temperature-humidity-meter-wet-bulb-for-indoor-outdoor-digital) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-08-01*