--- product_id: 91729713 title: "SPRM01 Spherometer with 0.01mm Graduated Screw" price: "NT$1015" currency: TWD in_stock: true reviews_count: 2 url: https://www.desertcart.tw/products/91729713-sprm01-spherometer-with-0-01mm-graduated-screw store_origin: TW region: Taiwan --- # 0.01mm precision screw Flat glass plate for stable readings Brass & steel durable build SPRM01 Spherometer with 0.01mm Graduated Screw **Price:** NT$1015 **Availability:** ✅ In Stock ## Summary > 🔬 Precision meets professionalism—measure your world with confidence! ## Quick Answers - **What is this?** SPRM01 Spherometer with 0.01mm Graduated Screw - **How much does it cost?** NT$1015 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.tw](https://www.desertcart.tw/products/91729713-sprm01-spherometer-with-0-01mm-graduated-screw) ## Best For - Customers looking for quality international products ## Why This Product - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Trusted US Origin:** Proudly made in the USA, combining heritage craftsmanship with modern precision. - • **Compact & Lightweight Design:** Portable 0.5-pound tool with a sleek 7cm footprint—perfect for on-the-go professionals. - • **Robust Brass & Steel Construction:** Engineered with premium brass plates and steel legs for lasting durability and stability. - • **Stable Readings with Glass Support:** Includes a flat glass plate to ensure consistent, wobble-free measurements every time. - • **Micrometer Precision at Your Fingertips:** Measure curvature with an ultra-fine 0.01mm graduated screw for unmatched accuracy. ## Overview The United Scientific SPRM01 Spherometer is a precision instrument designed to measure the radius of curvature on spherical surfaces with a fine 0.01mm graduated micrometer screw. Built with durable brass plates and steel legs, it includes a flat glass plate for stable, accurate readings. Compact and lightweight, this US-made tool is ideal for professionals requiring reliable curvature measurements in optics and engineering. ## Description A fine instrument for determining the radius of curvature of spherical surfaces such as mirrors and lenses. Its micrometer screw is graduated to measure displacement as small as 0.01mm. The instrument has two brass plates and three steel legs. Review: accurate if used carefully - I was able to measure the radius of curvature of a fountain basin within a couple of mm. Review: To Be Avoided - Unfortunately, this historical looking artifact is not of good quality and of little use as a measurement instrument. It is cheap in every sense of the word. There were no instructions, nor specifications, just a poorly packaged device with a glass plate in a crushed box. Perhaps it was damaged in transit, who knows. WARNING: The base pins are very sharp. They are also crooked, one wobbled and nothing measures out as it should. This is most unfortunate since the principle of the device is very sound. A generic diagram was obtained from the seller after contacting them but they have no idea of the specifications. I added measurements of mine and comments to the seller. I also found another diagram of a type with balls that would not destroy the sphere (ex: plastic or glass lenses). I also uploaded this information in case it may be of use to someone wanting to know more about how to measure spheres. Unfortunately, the desertcart return window expired by the time I got an answer, so, buyer beware! If you are looking for a intriguing decoration, perhaps it may be of interest to you. I will gladly give you mine! ## Features - A flat glass plate is provided for support while taking precision readings - Package Dimensions: 7.111 H x 7.111 L x 7.366 W (centimetres) - Package Weight: 0.5 pounds - Country of Origin : United States ## Technical Specifications | Specification | Value | |---------------|-------| | Customer Reviews | 3.6 out of 5 stars 4 Reviews | ## Images ![SPRM01 Spherometer with 0.01mm Graduated Screw - Image 1](https://m.media-amazon.com/images/I/61fDq03n2vL.jpg) ![SPRM01 Spherometer with 0.01mm Graduated Screw - Image 2](https://m.media-amazon.com/images/I/81PCMeJCr6L.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ accurate if used carefully *by J***R on November 30, 2024* I was able to measure the radius of curvature of a fountain basin within a couple of mm. ### ⭐ To Be Avoided *by N***T on October 31, 2024* Unfortunately, this historical looking artifact is not of good quality and of little use as a measurement instrument. It is cheap in every sense of the word. There were no instructions, nor specifications, just a poorly packaged device with a glass plate in a crushed box. Perhaps it was damaged in transit, who knows. WARNING: The base pins are very sharp. They are also crooked, one wobbled and nothing measures out as it should. This is most unfortunate since the principle of the device is very sound. A generic diagram was obtained from the seller after contacting them but they have no idea of the specifications. I added measurements of mine and comments to the seller. I also found another diagram of a type with balls that would not destroy the sphere (ex: plastic or glass lenses). I also uploaded this information in case it may be of use to someone wanting to know more about how to measure spheres. Unfortunately, the AMAZON return window expired by the time I got an answer, so, buyer beware! If you are looking for a intriguing decoration, perhaps it may be of interest to you. I will gladly give you mine! ## Frequently Bought Together - United Scientific SPRM01 Spherometer with 0.01mm Graduated Screw - United Scientific® Unistore™ - Sample Containers with Lids - Laboratory Grade Polypropylene Wide Mouth Reagent Bottle - 16 Oz Bottles with Screw Caps (500ml), Plastic Bottles with Lids, Pack of 12 - Weewooday 8 Pieces PTFE Magnetic Mixer Stirrer Bar, White Color Stainless Steel Laboratory PTFE Stir Plate Bar, Mixing Plate Magnet Stick (30 mm/ 1.18 Inch) --- ## 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.tw/products/91729713-sprm01-spherometer-with-0-01mm-graduated-screw](https://www.desertcart.tw/products/91729713-sprm01-spherometer-with-0-01mm-graduated-screw) --- *Product available on Desertcart Taiwan* *Store origin: TW* *Last updated: 2026-08-20*