--- product_id: 2336362 title: "Honeywell Home Thermostat Guard, Small, CG510A" brand: "honeywell home" price: "€ 57.38" currency: EUR in_stock: true category: "Honeywell Home" url: https://www.desertcart.hr/products/2336362-honeywell-home-thermostat-guard-small-cg510a store_origin: HR region: Croatia --- # Fits thermostats ≤4.375" x 4.375" Built-in lock with key Includes mounting hardware Honeywell Home Thermostat Guard, Small, CG510A **Brand:** honeywell home **Price:** € 57.38 **Availability:** ✅ In Stock ## Summary > 🔒 Lock your comfort, unlock peace of mind. ## Quick Answers - **What is this?** Honeywell Home Thermostat Guard, Small, CG510A by honeywell home - **How much does it cost?** € 57.38 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/2336362-honeywell-home-thermostat-guard-small-cg510a) ## Best For - honeywell home enthusiasts ## Why This Product - Trusted honeywell home brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Durable & Discreet:** Sturdy plastic guard that blends into your space while safeguarding your thermostat. - • **Crystal Clear Protection:** Transparent cover lets you monitor thermostat without compromising style or function. - • **Hassle-Free Installation:** Comes with all necessary mounting hardware for quick, professional setup. - • **Perfect Fit for Honeywell:** Designed specifically for popular Honeywell models, ensuring seamless compatibility. - • **Secure Your Climate Control:** Lock in your ideal temperature settings and keep unwanted changes out. ## Overview The Honeywell Home Thermostat Guard CG510A is a clear, lockable cover designed to protect Honeywell thermostats up to 4.375" x 4.375" from unauthorized adjustments. It includes a built-in lock with key, mounting hardware, and fits popular models like CT87 and RTH5100B. This durable, easy-to-install guard ensures your temperature settings stay exactly how you want them, combining security with sleek transparency. ## Description Small, clear thermostat guard prevents unwanted/unauthorized temperature on your thermostat. Includes built-in lock and key. Fits the following Honeywell thermostat models: CT87, CT3x without the wall plate and the RTH5100B (guard must be removed to access this product's battery door). May fit other thermostats of similar size. Interior dimensions: 4-7/16 W x 4-7/16 H x 2-1/4 D (inches). Outside dimensions: 5-7/8 W x 5-7/8 H x 2-1/2 D (Inch). Includes: cover, base, lock and key, and mounting hardware. 8.8 x 13 x 9.5 inches (Packaged product) ## Features - Clear plastic cover with built-in lock and a set of keys.Fits Thermostats 4.375H x 4.375W inches or Smaller - For use with Honeywell Home thermostats. It protects against unwanted changes to AC/Heating preferred settings - Inside dimensions: 4.44"W x 4.44"W x 2.25"D - Outside dimensions: 5.88"W x 5.88"H 2.50"D - Fits Thermostats 4.375H x 4.375W inches or Smaller ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B007EJA7VC | | Additional Features | Low Voltage | | Best Sellers Rank | #226,509 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #182 in Home Thermostat Accessories | | Brand Name | Honeywell Home | | Color | Clear | | Control Method | Push Button | | Controller Type | Push Button | | Customer Reviews | 4.3 4.3 out of 5 stars (2,416) | | Display Type | lcd or led | | Global Trade Identification Number | 00085267776905 | | Included Components | Thermostat guard, wall anchors, screws, key | | Item Dimensions D x W x H | 2.5"D x 5.88"W x 5.88"H | | Item Type Name | Thermostat Guard | | Item Weight | 9.6 ounces | | Manufacturer | Honeywell Home | | Manufacturer Part Number | CG510A1019/N | | Manufacturer Warranty Description | 1 year limited warranty. | | Material Type | Plastic | | Model Name | CG510A1019/N | | Model Number | CG510A1019/N | | Mounting Type | Wall Mount | | Number of Items | 1 | | Power Source | Hardwired | | Product Style | Traditional | | Specific Uses For Product | Furnace | | Temperature Control Type | Heating | | UPC | 085267776905 | | Unit Count | 1 Count | ## Product Details - **Brand:** Honeywell Home - **Controller Type:** Push Button - **Model Name:** CG510A1019/N - **Product Dimensions:** 2.5"D x 5.88"W x 5.88"H - **Special Feature:** Low Voltage ## Images ![Honeywell Home Thermostat Guard, Small, CG510A - Image 1](https://m.media-amazon.com/images/I/71u8KtjeWeL.jpg) ![Honeywell Home Thermostat Guard, Small, CG510A - Image 2](https://m.media-amazon.com/images/I/41W3t7dkjrL.jpg) ![Honeywell Home Thermostat Guard, Small, CG510A - Image 3](https://m.media-amazon.com/images/I/41vqKdpdxPL.jpg) ![Honeywell Home Thermostat Guard, Small, CG510A - Image 4](https://m.media-amazon.com/images/I/318vmhLUL0L.jpg) ![Honeywell Home Thermostat Guard, Small, CG510A - Image 5](https://m.media-amazon.com/images/I/41w2FE3rpQL.jpg) ## Available Options This product comes in different **Size** options. ## Questions & Answers **Q: Can I order multiple units that all use the same key?** A: I ordered three of these and they all have the same key. **Q: Is cover attached to frame to prevent any one from using knife to pop off the cover from the top to get to thermastat?** A: If someone really wanted to get the cover off they could. We have a lot of out of town guest and it keeps them from changing the temps. **Q: What are the dimensions? There are two listed: a) 8.8 x 13 x 9.5 inches. OR b) 5-7/8 W x 5-7/8 H x 2-1/2 D. So which is it?** A: 5-7/8 hx2-1/2 **Q: if my thermostat size is 5 1/2 " x 5 1/5 " x 1 1/2 will this work?** A: No ## Frequently Bought Together - Genuine Honeywell Home CG510A Thermostat Guard, Small, Fits Thermostats 4.375H x 4.375W inches or smaller - Honeywell Home CT87K1004 The Round Heat Only Manual Thermostat - Honeywell Home CT87N1001 The Round Non-Programmable Manual Thermostat, Large, White --- ## 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.hr/products/2336362-honeywell-home-thermostat-guard-small-cg510a](https://www.desertcart.hr/products/2336362-honeywell-home-thermostat-guard-small-cg510a) --- *Product available on Desertcart Croatia* *Store origin: HR* *Last updated: 2026-08-28*