# DeNova Detect by New Cosmos USA Inc.

> DeNova Detect is the U.S. brand of New Cosmos Electric, a 65-year-old Osaka sensor maker that pioneered the world's first residential gas alarm in 1964 and has sold more than 75 million of them since. Its American arm, New Cosmos USA, sells battery-powered natural gas and carbon monoxide alarms built around proprietary hot-wire semiconductor and MEMS sensors - devices that mount near the ceiling, run for a decade without wiring, and speak evacuation instructions in English and Spanish when methane hits 10% of its explosive limit.

- **Founded:** 2018
- **Headquarters:** Lisle, Illinois, United States
- **Founders:** Yoshinori Takahashi (President, New Cosmos Electric Co., Ltd. (parent)), Ron Lazarus (COO, New Cosmos USA, Inc.), Julie Harris (Senior Marketing Communications Manager)
- **Team size:** ~13 (New Cosmos USA); parent New Cosmos Electric employs ~947 globally
- **Products:** DeNova Detect 10-Year Battery-Powered Natural Gas Alarm (DD620NV), DeNova Detect 2-in-1 Carbon Monoxide + Natural Gas Alarm (DD623NCV), ML-310ES / ML-330 Natural Gas & Methane Detectors, Utility & B2B alarm programs
- **Notable:** Parent New Cosmos Electric pioneered the world's first residential gas alarm in 1964, More than 75 million gas alarms sold globally, Operates what it describes as the world's largest gas-sensor manufacturing facilities (Cosmos Sensor Centers)

## Products & services

- **DeNova Detect 10-Year Battery-Powered Natural Gas Alarm (DD620NV)** — Battery-powered, wall-mounted natural gas (methane) alarm with a 10-year sealed battery, MEMS sensor, 10% LEL low-level alarm threshold, 85 dB siren and bilingual English/Spanish voice alerts. Installs with a single screw in about a minute and mounts high on the wall near the ceiling to meet NFPA 715 placement.
- **DeNova Detect 2-in-1 Carbon Monoxide + Natural Gas Alarm (DD623NCV)** — Combination alarm detecting both carbon monoxide and natural gas in a single 100% battery-powered unit with voice alerts, engineered to meet NFPA 715 installation standards.
- **ML-310ES / ML-330 Natural Gas & Methane Detectors** — Plug-in and wired natural gas / methane detector models built on New Cosmos hot-wire semiconductor sensor technology for residential leak detection.
- **Utility & B2B alarm programs** — Bulk gas-alarm supply and safety programs for gas utilities and municipalities, including deployments tied to regulations like NYC Local Law 157.

## Achievements

- Parent New Cosmos Electric pioneered the world's first residential gas alarm in 1964
- More than 75 million gas alarms sold globally
- Operates what it describes as the world's largest gas-sensor manufacturing facilities (Cosmos Sensor Centers)
- Among the first to offer both wireless and non-wireless 100% battery-powered natural gas alarms
- Products engineered to meet and exceed NFPA 715 installation standards; ETL listed to UL 1484
- Debuted a smart natural gas alarm product line at CES 2023
- Con Edison program has deployed hundreds of thousands of DeNova alarms across New York
- Won HD Supply's Excellence in Innovation Award (2026)

## Latest updates

- **2026-03** — Won the Excellence in Innovation Award at HD Supply Connect 2026.
- **2025-10** — Announced interoperability with Itron's Gen6 network platform for utility-scale gas-leak monitoring; brand identity refreshed.
- **2025-05** — NYC Local Law 157 compliance deadline (May 1, 2025) drove demand for DeNova's LL157-compliant combo alarms.
- **2025-01** — Voluntary CPSC recall of ~26,360 DD622NCV combination alarms that could enter sleep mode and miss subsequent leaks; free replacements offered, no injuries reported.
- **2024-10** — Promoted natural gas safety during 2024 Fire Prevention Week.

## Links

- Website: https://denovadetect.com
- LinkedIn: https://www.linkedin.com/company/denova-detect-by-new-cosmos-usa/
- YouTube: https://www.youtube.com/@denovadetect7565
- Instagram: https://www.instagram.com/denovadetect/
- Facebook: https://www.facebook.com/people/DeNova-Detect/100088218381638/

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Published by YesPress — https://yespress.io
Last updated: 2026-08-20