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Multi Gas Detector SEED-MG
Six-Gas Handheld Monitor with PID Sensor, 500 mL/min Pump & Wireless
Alarm for Hazardous Atmospheres (IP67, Ex ia IIC T4 Ga)
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Description
LSJ · Wireless Multi Gas Detector
SEED-MG: Six-Gas Monitoring
in One Handheld Unit
PID photoionization sensing · active pump-suction · intrinsically safe body,
built for rescue, chemical, petrochemical, mining and hazmat teams.
6 GAS CHANNELS 500 mL/min PUMP IP67 · Ex ia IIC T4 Ga
The LSJ SEED-MG is a wireless multi gas detector built for emergency rescue, chemical accidents, petrochemical plants, mining safety and hazardous environment monitoring. It continuously monitors volatile organic compounds (VOC / TVOC), combustible gases and toxic gases in real time, using high-quality PID photoionization, electrochemical, oxygen and catalytic combustion sensors that can be flexibly configured for each mission.

Figure: LSJ SEED-MG handheld multi gas detector rendering the real-time six-gas interface on its 2.8-inch color LCD.
Display & Interface
One Screen, Six Live Gas Channels
Every reading matters when teams enter an unknown atmosphere. The 2.8-inch color LCD presents six gas cards at once — combustible gas (%LEL), oxygen (%VOL), TVOC (ppm), chlorine (ppm), optional nuclear radiation (µSv/h) and carbon monoxide (ppm) — so operators see the full picture without paging through menus. The top status bar shows time, wireless link, alarm and battery state at a glance.

Figure: Close-up of the SEED-MG user interface: six simultaneous gas readings with unit, wireless and alarm status icons.
Sensing & Durability
Modular Sensors, Active Pump-Suction, IP67 Body
The modular sensor design lets you combine PID, LEL, toxic-gas and even nuclear radiation channels for the gases your site actually faces — methane, carbon monoxide, hydrogen sulfide, hydrogen and hundreds more. A built-in pump draws samples at 500 mL/min and can be switched off when diffusion sampling is preferred, while the double-layer filter keeps readings stable in high-humidity, dusty conditions. The intrinsically safe body is sealed against water and dust for explosive atmospheres.
- Response time ≤ 20 s (T90); recovery ≤ 30 s
- Sound 95 dB @ 30 cm, vibration, red LED plus personal fall alarm, with remote wireless alarm support
- A1 / A2 alarm values; TWA and STEL limits settable separately
- 300,000-group data logging with date and time; USB download; optional TF card

Figure: SEED-MG structure: front 2.8-inch color screen, top pump-suction inlet and sealed rear housing.
Portability & Deployment
Grab, Clip, Go: Built for Rapid Response
At 750 g with a rear belt clip, the SEED-MG rides on a turnout coat or belt so both hands stay free for rescue work. Rescue teams open the protective case, power on, and start reading the atmosphere within seconds — no external sampler to carry.

Figure: Field deployment of the SEED-MG from its protective carry case during rescue operations.
The compact, lightweight body is designed to be carried through collapsed structures, tank farms and contaminated zones without burdening the operator.

Figure: Rescue personnel operating the compact SEED-MG on site — compact, lightweight, easy to carry.
Field-Proven Performance
Trusted in Real Hazardous-Atmosphere Operations
In the initial stage of a chemical park leak, the SEED-MG quickly locates the leakage source, reports gas type and concentration, and alarms the moment a threshold is exceeded. During the rescue it keeps monitoring, so teams always know how the atmosphere is changing and can protect themselves while they work.

Figure: The SEED-MG displaying live multi-gas readings during hazardous material emergency response.
Industries
Built for Your Industry
Delivery
What Is in the Box
Each SEED-MG ships ready for duty: the detector, a rugged protective carrying case, rechargeable 18500 lithium battery, charger with USB cable, and the LSJ composite gas detector operating manual.

Figure: Standard SEED-MG delivery package with LSJ-branded composite gas detector operating manual.
Global Presence
A Brand Rescuers Meet at Global Security Exhibitions
Beijing LSJ Technology Development Co., Ltd. presents the SEED-MG to professional buyers at leading security and fire exhibitions worldwide — INTERSEC in Dubai, SECURIKA in Russia, DSA & NATSEC & MITEC in Malaysia, and NFPA in the USA — the same teams that trust it in the field.

Figure: LSJ showcasing the SEED-MG multi gas detector at INTERSEC Dubai, SECURIKA Russia, DSA Malaysia and NFPA USA.
Configure Your SEED-MG Gas Combination
Tell us your target gases and alarm thresholds — LSJ engineers will propose a modular sensor layout for your application.
Send InquiryIP67 & Ex ia IIC T4 Ga certified design · 300,000-group data logging · Backed by Beijing LSJ Technology Development Co., Ltd.
FAQ
Frequently Asked Questions About the LSJ SEED-MG Multi Gas Detector
?Q: How many gases can the SEED-MG detect at the same time?
A: The SEED-MG displays six live gas channels on one screen — combustible gas (%LEL), oxygen (%VOL), TVOC (ppm), chlorine (ppm), carbon monoxide (ppm) and an optional nuclear radiation channel (µSv/h). With PID, electrochemical, oxygen and catalytic combustion sensor modules, it detects hundreds of gases in total, including methane, carbon monoxide, hydrogen sulfide and hydrogen.
?Q: Can the sensor configuration be customized for our site?
A: Yes, the modular sensor design allows flexible combination and personalized configuration. Standard options cover O2 / EX / VOC / Cl2 / CO / CH2O / SO2 / NH3 / PH3, and the nuclear radiation alarm module is optional. Send us your target gas list and we will propose a layout.
?Q: Does it work in high-humidity or dusty environments?
A: Yes. The active pump-suction design with a double-layer filter keeps sampling stable in humid, dusty conditions, and the body is rated IP67 for water and dust resistance with an intrinsically safe Ex ia IIC T4 Ga rating for explosive atmospheres. It operates from −20 °C to +55 °C.
?Q: How does the SEED-MG alert the team in an emergency?
A: Through four local alarm modes — a 95 dB sound alarm at 30 cm, vibration, a red LED alarm light and a personal fall alarm — and it also supports remote wireless alarm transmission. Alarm points are fully configurable: A1 and A2 alarm values, with TWA and STEL limits settable separately.
?Q: How much measurement data can it store and how do I download it?
A: The detector automatically stores up to 300,000 groups of data with date and time. You can download measurement data via USB, and a micro TF memory card is optionally supported for extended logging.
?Q: What is included in the delivery?
A: The standard package includes the SEED-MG detector, a rugged protective carrying case, a rechargeable 18500 lithium battery, a charger with USB cable and the LSJ composite gas detector operating manual.
?Q: Who manufactures the SEED-MG?
A: The SEED-MG multi gas detector is developed and manufactured by Beijing LSJ Technology Development Co., Ltd. (LSJ), and is presented at leading global security exhibitions including INTERSEC Dubai, SECURIKA Russia, DSA & NATSEC & MITEC Malaysia and NFPA USA.
Datasheet
SEED-MG Technical Specifications
Verified data from the official LSJ SEED-MG multi gas detector datasheet. Modular sensors allow personalized gas configuration for your site.
All values are taken from the official LSJ SEED-MG datasheet. Sensor combinations, radiation module and alarm thresholds can be configured per project.