--- product_id: 51730979 title: "Oxygen Tester Portable Oxygen(O2) Detector Oxygen O2 OLED Display Tester Gas Detector Monitor" brand: "santacary" price: "HK$1340" currency: HKD in_stock: false url: https://www.desertcart.hk/products/51730979-oxygen-tester-portable-oxygen-o2-detector-oxygen-o2-oled-display store_origin: HK region: Hong Kong --- # Oxygen Tester Portable Oxygen(O2) Detector Oxygen O2 OLED Display Tester Gas Detector Monitor **Brand:** santacary **Price:** HK$1340 **Availability:** ❌ Out of Stock ## Quick Answers - **What is this?** Oxygen Tester Portable Oxygen(O2) Detector Oxygen O2 OLED Display Tester Gas Detector Monitor by santacary - **How much does it cost?** HK$1340 with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.hk](https://www.desertcart.hk/products/51730979-oxygen-tester-portable-oxygen-o2-detector-oxygen-o2-oled-display) ## Best For - santacary enthusiasts ## Why This Product - Trusted santacary brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Description FEATURES ★ A mini, Personal Single Gas Detector (Oxygen) with clip. Easy to carry. ★ Electrochemical sensor, no consumable parts. ★ Lithium-ion rechargeable battery. USB Charging port. ★ Works 25 days per charge. Package Include (Retail Package): 1 X Santacary SG-O Pocket Oxygen Meter Monitor 1 X Charger 1 X Cable 1 X Protector Bag 1 X US Plug to EU Plug Adapter 1 X Instructions THEORY OF OPERATION The Santacary SG-O Single Gas Oxygen Detector uses two-electrode electrochemical technology, operating by the diffusion principle, for determining the concentration of oxygen in air samples. In diffusion mode, the atmosphere reaches the sensor by diffusing through the sensor port on the back of the instrument. Normal air movements are enough to carry the sample to the sensor. CLEANING AND STORAGE Oxygen Sensor SpeThe front panel and case can be cleaned with a mild solution of detergent and water.Apply sparingly with a soft cloth and allow drying completely before using. Do not use aromatic hydrocarbons or chlorinated solvents for cleaning. SG-O can operate for two year without replacing the battery or sensor. No maintenance required and possible during its service life of approx. 24 months. In case of faults or expiry of the service life, dispose off the instrument in compliance with the applicable regulations. WARRANTY The SG-O is warranted to be free from defects in material and workmanship for a period of ONE year from the date of purchase. This warranty covers normal operation and does not cover misuse, abuse, alteration, neglect, improper maintenance. Warranty is void if the detector has been opened. ## Features - Santacary Oxygen O2 OLED Display Tester Gas Detector Monitor. - Santacary SG-O is a mini style, precise single gas detector for monitoring Oxygen (O2) in the ambient air and in the workplace. It has been designed to protect the safety of workers in dangerous work places. - The SG-O will continuously display the ambient concentration of oxygen and activate its audible and visual alarms whenever the preset limits are exceeded. It is used exclusively for monitoring and cannot be used for measuring oxygen concentrations. In addition to monitoring the oxygen, the Santacary SG-O can also measure the ambient temperature and the relative humidity. - SG-O can be widely used in the car, touring car, garage, food/fruits/goods container, petrochemical, power plant, telecom, medicine, mine, heavy industry, army, food industry, gas industry, and other confined spaces for personal safety. - Please read these instructions(Description) carefully before use. This operation manual will provide you with all the necessary information for the correct use of your SG-O Oxygen Detector. ## Images ![Oxygen Tester Portable Oxygen(O2) Detector Oxygen O2 OLED Display Tester Gas Detector Monitor - Image 1](https://images-na.ssl-images-amazon.com/images/I/51-ZnvLuyHL.jpg) ![Oxygen Tester Portable Oxygen(O2) Detector Oxygen O2 OLED Display Tester Gas Detector Monitor - Image 2](https://images-na.ssl-images-amazon.com/images/I/41bbg-mcaEL.jpg) ![Oxygen Tester Portable Oxygen(O2) Detector Oxygen O2 OLED Display Tester Gas Detector Monitor - Image 3](https://images-na.ssl-images-amazon.com/images/I/51aC-DR5LhL.jpg) ![Oxygen Tester Portable Oxygen(O2) Detector Oxygen O2 OLED Display Tester Gas Detector Monitor - Image 4](https://images-na.ssl-images-amazon.com/images/I/51oab6riycL.jpg) ![Oxygen Tester Portable Oxygen(O2) Detector Oxygen O2 OLED Display Tester Gas Detector Monitor - Image 5](https://images-na.ssl-images-amazon.com/images/I/51AjruMdgSL.jpg) --- ## 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.hk/products/51730979-oxygen-tester-portable-oxygen-o2-detector-oxygen-o2-oled-display](https://www.desertcart.hk/products/51730979-oxygen-tester-portable-oxygen-o2-detector-oxygen-o2-oled-display) --- *Product available on Desertcart Hong Kong* *Store origin: HK* *Last updated: 2026-05-18*