--- product_id: 10525007 title: "General Tools RHMG650 9-In-1 Thermo-Hygrometer with Pin/Pinless Moisture Meter" brand: "general tools" price: "€ 455.83" currency: EUR in_stock: true reviews_count: 12 category: "General Tools" url: https://www.desertcart.gr/products/10525007-general-tools-rhmg650-9-in-1-thermo-hygrometer-with-pin store_origin: GR region: Greece --- # Stores 20 reading pairs Customizable high/low alerts 9-in-1 multi-measurement General Tools RHMG650 9-In-1 Thermo-Hygrometer with Pin/Pinless Moisture Meter **Brand:** general tools **Price:** € 455.83 **Availability:** βœ… In Stock ## Summary > 🌟 Master moisture like a pro β€” never miss a beat with the RHMG650! ## Quick Answers - **What is this?** General Tools RHMG650 9-In-1 Thermo-Hygrometer with Pin/Pinless Moisture Meter by general tools - **How much does it cost?** € 455.83 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/products/10525007-general-tools-rhmg650-9-in-1-thermo-hygrometer-with-pin) ## Best For - general tools enthusiasts ## Why This Product - Trusted general tools brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Smart Data Management:** Stores and recalls up to 20 paired readings to track environmental changes effortlessly. - β€’ **User-Friendly Display:** Backlit LCD with dual readouts ensures clear visibility in any lighting condition. - β€’ **Precision in Every Reading:** Measures 9 critical moisture and humidity parameters for comprehensive diagnostics. - β€’ **Field-Calibratable Accuracy:** Calibrate humidity measurements on-site to maintain professional-grade precision. - β€’ **Custom Alerts for Proactive Monitoring:** Set high and low alarms for relative humidity and moisture levels to catch issues early. ## Overview The General Tools RHMG650 is a versatile 9-in-1 thermo-hygrometer and moisture meter designed for professionals in water damage restoration, HVAC, and facility maintenance. It offers precise measurements of humidity, dew point, vapor pressure, and moisture levels with a backlit LCD display, stores up to 20 reading pairs, and features customizable alarms and field calibration for reliable, on-the-go accuracy. ## Description General's RHMG650 9-in-1 Thermo-Hygrometer with Pin/Pinless Moisture Meter is ideal for water damage restoration contractors, facility maintenance professionals and HVAC system installers/technicians.GENERAL TOOLS - THE PRECISE TOOL FOR DOING THE JOB EXACTLY RIGHT. Offering over 1,000 tools, we’re proud to provide tradesmen, craftsmen and DIYers around the world with a broad range of affordable, specific-purpose mechanical hand tools and precision measuring and inspection tools.WORK SMARTER, MEASURE BETTER & BE MORE PRODUCTIVE WITH GENERAL TOOLS Review: Pretty good, but one complaint... - I use it at work a few times per week. So far, it’s sturdy and gets the job done nicely. My only complaint is that the screen does not photograph well on my iPhone. This is important as I need photographic evidence of the readings I take. I really like the storage bag that it comes with. Review: Effective - Works well but prongs are weak ## Features - MEASURES: 9 different measurements (humidity, dew point, vapor pressure). - RANGE: -20 to 167Β°F recalls 20 reading pairs, large backlit LCD. - ALERTS: Settable high and low alarms for RH, relative moisture level and absolute moisture level and field calibratable humidity measurement. - MEASURES: 9 different elements related to moisture and humidity damage. - DISPLAY: Backlit LCD with 3 digit primary readout and 4 digit secondary readout. - Measures 9 different elements related to moisture and humidity damage - Stores/recalls 20 pairs of readings and has settable high and low alarms for RH, relative moisture level and absolute moisture level - Backlit LCD with 3 digit primary readout and 4 digit secondary readout - Field calibratable humidity measurement - Features minimum/maximum, data hold and 30 minute auto power off functions ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00I140G2E | | Battery Description | Alkaline | | Best Sellers Rank | #196,713 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #90 in Moisture Meters | | Brand | General Tools | | Brand Name | General Tools | | Color | Solid Black | | Customer Reviews | 4.3 out of 5 stars 70 Reviews | | Global Trade Identification Number | 00681035016084 | | Included Components | Meter, external pin-type moisture probe, battery, soft pouch | | Item Weight | 4.54 g | | Lower Temperature Rating | 32 Β°F | | LowerTemperature Range | 32 Β°F | | Manufacturer | General Tools | | Model | RHMG650 | | Mounting Type | Tabletop | | Number of Items | 1 | | Part Number | RHMG650 | | Temperature Accuracy | 2 | | UPC | 681035016084 | | Unit Count | 1 Count | | Upper Temperature Range | 110 Β°F | ## Product Details - **Brand:** General Tools - **Item Weight:** 0.01 Pounds - **Battery Description:** Alkaline - **Lower Temperature Rating:** 32 Degrees Fahrenheit - **Mounting Type:** Freestanding ## Images ![General Tools RHMG650 9-In-1 Thermo-Hygrometer with Pin/Pinless Moisture Meter - Image 1](https://m.media-amazon.com/images/I/717aw3OCA3L.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Pretty good, but one complaint... *by J***H on August 28, 2019* I use it at work a few times per week. So far, it’s sturdy and gets the job done nicely. My only complaint is that the screen does not photograph well on my iPhone. This is important as I need photographic evidence of the readings I take. I really like the storage bag that it comes with. ### ⭐⭐⭐⭐⭐ Effective *by M***W on January 26, 2026* Works well but prongs are weak ### ⭐⭐⭐ False wet readings *by J***N on March 27, 2022* When I use the invasive pins, I get fall sweat readings. Very disappointing. ## Frequently Bought Together - General Tools RHMG650 9-In-1 Thermo-Hygrometer with Pin/Pinless Moisture Meter - General Tools PIN3 Replacement Pins for MMD4E, RHMG650 and RHMG700DL Silver - General Tools Digital Moisture Meter MMD7NP - Humidity Sensor- Pinless and Non-Invasive --- ## 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.gr/products/10525007-general-tools-rhmg650-9-in-1-thermo-hygrometer-with-pin](https://www.desertcart.gr/products/10525007-general-tools-rhmg650-9-in-1-thermo-hygrometer-with-pin) --- *Product available on Desertcart Greece* *Store origin: GR* *Last updated: 2026-10-04*