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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)

Key Advantages

Why Teams Choose SEED-MG

6-Gas Simultaneous Detection — LEL, O2, CO, Cl2, TVOC + optional RAD channel
PID Sensor, Hundreds of Gases — methane, CO, H2S, H2modular sensor slots
Built-in Pump 500 mL/min — active sampling, double-layer filter
IP67 & Ex ia IIC T4 Ga — intrinsically safe body
95 dB + Vibration + LED + Fall Alarm — remote wireless alerting

300,000 data groups≤20 s T90 response750 g handheld

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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.

LSJ SEED-MG multi gas detector with 2.8-inch color screen showing six gas readings simultaneously

Figure: LSJ SEED-MG handheld multi gas detector rendering the real-time six-gas interface on its 2.8-inch color LCD.

6
Gas Channels on One Screen
500
mL/min Pump Flow
≤20 s
T90 Response Time
IP67
+ Ex ia IIC T4 Ga

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.

LSJ SEED-MG 2.8-inch color LCD interface displaying LEL, O2, TVOC, Cl2, radiation and CO readings with wireless status icons

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
LSJ SEED-MG multi gas detector three-view design: front color screen, top pump inlet and rear belt clip

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.

Rescue team deploying the LSJ SEED-MG multi gas detector from its protective case at an emergency site

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.

Fire rescue personnel carrying the lightweight LSJ SEED-MG multi gas detector at a rescue site

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.

LSJ SEED-MG handheld multi gas detector used in hazardous material emergency response with live gas readings

Figure: The SEED-MG displaying live multi-gas readings during hazardous material emergency response.

Industries

Built for Your Industry

FR Fire & Emergency Rescue Unknown atmosphere in collapsed structures and fire scenes. LSJ solution: six-gas live reading, 95 dB multi-mode alarm and fall alarm protect entry teams.
CP Chemical & Petrochemical Fast leak source location in a chemical park. LSJ solution: pump-suction sampling locates the leak and alarms the moment a threshold is exceeded.
MS Mining Safety Methane and oxygen deficiency in dusty tunnels. LSJ solution: the double-layer filter and IP67 body keep readings stable in high-dust, humid air.
EM Environmental Monitoring Trace VOC and toxic gas survey with audit trail. LSJ solution: PID sensor plus 300,000-group time-stamped logging with USB download.

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.

LSJ SEED-MG multi gas detector delivery package: detector, protective case, 18500 battery, charger, USB cable and LSJ 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.

LSJ team presenting the SEED-MG multi gas detector at INTERSEC Dubai, SECURIKA Russia, DSA Malaysia and NFPA USA exhibitions

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 Inquiry

IP67 & 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.

Parameter Specification
Model SEED-MG Multi Gas Detector
Dimensions / Weight 85 × 59 × 196 mm (±10%) / 750 g (±10%)
Detected Gases O2 / EX / VOC / Cl2 / CO / CH2O / SO2 / NH3 / PH3 and more; detects hundreds of gases including methane, carbon monoxide, hydrogen sulfide and hydrogen; optional configuration per customer needs
Sensor Types PID photoionization, electrochemical, oxygen and catalytic combustion sensors; modular, flexibly combined
Sampling Method Active pump-suction; built-in pump independently switchable; flow rate 500 mL/min
Radiation Function Nuclear radiation alarm (optional)
Response / Recovery Time ≤ 20 s (T90) response / ≤ 30 s recovery (higher requirements depend on sensor performance)
Alarm Modes Sound alarm 95 dB @ 30 cm, vibration alarm, red LED alarm light, personal fall alarm; supports remote wireless alarm
Alarm Point Settings A1 alarm value and A2 alarm value; TWA and STEL alarm values settable separately
Display Screen 2.8-inch color-screen LCD
Data Recording & Transmission Automatic storage of 300,000 groups with date and time; optional micro TF memory card; USB measurement data download and transmission
Calibration Target-point calibration function above level 2; calibration values settable; one-key zero adjustment
Protection & Explosion-Proof Rating IP67 water and dust resistance; Ex ia IIC T4 Ga intrinsically safe type
Ambient Temperature Operating: −20 °C ~ +55 °C; Storage: −40 °C ~ +70 °C

All values are taken from the official LSJ SEED-MG datasheet. Sensor combinations, radiation module and alarm thresholds can be configured per project.

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