LSJ SEED-PM Trace Detector | CWA, Explosives & Radiation

Core Capabilities

Six Threat Classes, One Handheld Instrument

The LSJ SEED-PM is a portable trace detector built on Ion Mobility Spectrometry for emergency firefighting, public security, border defence, anti-smuggling, customs and national defence screening.

Firefighter holding the LSJ SEED-PM during a field screening exercise

CAPABILITY 01

Chemical, Explosive, Drug and Radiological Threats on One Screen

A single unit covers the six threat classes a hazmat or checkpoint team meets: chemical warfare agents, toxic industrial chemicals, combustible gas, explosives trace, drugs and nuclear radiation, backed by an onboard database of no fewer than 600 sample profiles.

Chemical warfare agents: GA (Tabun), GB (Sarin), GD (Soman), VX, VS, HD (mustard), L (lewisite), HN3 and AC
Toxic industrial chemicals: NH₃, Cl₂, H₂S, NO, NO₂, HCHO and toluene among other toxic gases
Additional classes: combustible gas (LEL), explosives trace, drugs, nuclear radiation and TVOC

CAPABILITY 02

From Power-On to Verdict in Seconds, Not Minutes

One key starts the unit: power-on self-inspection and automatic calibration run without intervention, and warm-up takes no more than 10 minutes. Analysis time is selectable between 2 and 32 seconds to match the screening tempo of the scene.

Quantified Sarin (GB) detection limit of 0.5 mg/m³, with pg-class sensitivity stated by the manufacturer
Automatic calibration, real-time fault diagnosis, self-cleaning and manual cleaning
Travels in a custom-cut hard case so screening can start as soon as the lid opens

SEED-PM hard case with custom-cut foam opened on site

Front suction sampling inlet and rear interface panel with USB and WAN ports

CAPABILITY 03

One Inlet for Solid, Liquid and Gas Samples

The front suction inlet draws solid, liquid and gaseous samples through the same workflow. Operators do not swap cartridges, probes or consumables between sample states on site.

Suction sampling covering all three sample states with one instrument
Audible-visual alarm on detection, or a selectable covert (silent) alarm for discreet operations
Identified agent type displayed on screen so the reading can be acted on immediately

CAPABILITY 04

A 4.3-Inch Screen for the Whole Threat Picture

The colour touchscreen shows the IMS spectral fingerprint alongside three live environmental channels — radiation level (μSv/h), combustible gas (LEL, %LEL) and TVOC (ppm) — so chemical, explosive and radiological risk can be read at one glance.

Status line confirms “Ready”; one-tap automatic calibration is always available
RAD, LEL and TVOC channels update beside the spectrum rather than on a second instrument
Wireless status and alarm state shown on the same display

SEED-PM interface showing IMS spectra with radiation, LEL and TVOC readouts

Rescue operator carrying the LSJ SEED-PM one-handed at a rubble site

CAPABILITY 05

A 3 kg Build for a Full Shift in the Field

At 3 kg and 367 × 138 × 169 mm the SEED-PM is carried one-handed through a complete shift. It operates from −20 °C to +55 °C at up to 95%RH and runs for more than 5 hours on the lithium-ion battery, with 10+ hours standby.

AC 110/220 V, 50/60 Hz and DC 24 V (18 V rated) supply options for vehicle or base charging
Continuous operation beyond 5 hours with 10+ hours standby between screenings
Integrated carry handle and front suction inlet in a single sealed body

CAPABILITY 06

Every Screening Stored, Every Record Exportable

Up to 300,000+ detection records are held on board with storage, retrieval and export functions, and data reaches the command post over WAN Ethernet, two USB ports or wireless upload.

Event records stored automatically at the moment of detection
USB backup in addition to on-board storage for evidentiary hand-over
Ethernet (WAN) and two USB ports on the rear interface panel

LSJ SEED-PM portable IMS trace detector, product view

Equipping a team, a checkpoint or a procurement programme?

Discuss configuration options, the substance-library coverage you need, and demonstration availability with our team.

Applications

Where the SEED-PM Goes to Work

Typical users are emergency firefighting and hazmat teams, public security units, border defence and anti-smuggling forces, military CBRN units and customs authorities.

Encapsulated hazmat entry team screening before committing personnel

Emergency Firefighting and HazMat Response

Fire rescue and hazardous-materials teams screen smoke, spills and collapsed structures for chemical agents and toxic gas before committing crews. When a hazardous gas is detected the unit raises an audible-visual alarm and shows the agent type on screen, so commanders can plan routes and keep personnel out of poisoned zones.

CBRN reconnaissance in a toxic and radiological hazard zone

Military CBRN, Border Defence and Anti-Smuggling

Military CBRN reconnaissance patrols, border defence units and anti-smuggling teams verify chemical and radiological contamination in the field, with covert silent alarming for discreet operations. The same instrument supports trace screening of explosives and narcotics at checkpoints.

Hazmat technicians surveying a contaminated shoreline

Disaster Relief and Environmental Hazard Monitoring

After earthquakes, floods and industrial accidents, damaged plants and pipelines may leak toxic substances. Environmental and rescue teams survey contaminated ground, waterlines and debris before entry, and use the stored results to map hazard zones and plan safe rescue routes.

Operational Scenario

Chemical Spill at an Industrial Site: An Illustrative Deployment

The scenario below illustrates how the SEED-PM may support an entry decision. It is not a documented customer case study.

Illustrative industrial hazmat screening scenario

Example: Pre-Entry Screening at a Damaged Chemical Line

Situation

A damaged line at an industrial park has released an unidentified vapour. The response team cannot confirm whether the cloud is a toxic industrial chemical, a flammable gas, or both, and the site cannot be entered on visual assessment alone.

Potential use

A crew could present the front suction inlet to the plume from a stand-off position and read the result within the selectable 2–32 second analysis window. The screen reports the identified agent type together with the radiation level (μSv/h), combustible gas (%LEL) and TVOC (ppm) channels, so flammability and radiological risk are checked at the same time. Readings describe the sampled atmosphere only; the instrument does not replace gas-detection procedure or atmospheric modelling.

Decision support

Findings may inform entry routes, protective-equipment levels and exclusion-zone boundaries under the incident commander's procedures, and each detection is stored automatically for the post-incident record. Outcomes depend on concentration, sampling position, instrument state and operator training.

Why Work With LSJ

Manufacturing Capability
Built Around Procurement Needs

Explore the production facilities, compliance documents, and international exhibitions presented in the materials below. Confirm product-specific certifications and current manufacturing capabilities with the supplier before placing an order.

16years Manufacturing
experience

4document types CE · ISO · MSDS · RoHS
shown in supplied image

GLOBAL International trade-show
engagement

Supplied collage of LSJ manufacturing, assembly, and testing areas

01 · PRODUCTION

Assembly and Testing Capability

The supplied company materials describe 16 years of manufacturing experience alongside assembly and testing activities. Confirm the applicable product line, current capabilities, and lead time when requesting a quote.

Supplied collage of CE, ISO, MSDS, and RoHS-related documents

02 · CERTIFIED

Documentation for Due Diligence

Request current, product-specific documents and verify their scope before use in a tender or import review.

CEISOMSDSRoHS

LSJ team and visitors at international trade exhibitions

03 · GLOBAL

Product Discussions at Global Events

Explore images of industry exhibitions and in-person discussions with international partners and emergency-response professionals.

Click an image for a larger view · Request a facility visit or document verification

Request an Ope

rating Demonstration

Ask about one-key startup, sample presentation and the 2–32 second analysis workflow

Operation Video

See the LSJ SEED-PM in Operation

Watch the operating demonstration to follow one screening cycle end to end: power-on self-check and calibration, suction sampling of a solid, liquid or gas sample, the selectable analysis window, and the alarm and record step.

One-key startup with automatic self-inspection and calibration
Presenting solid, liquid and gas samples to the front suction inlet
Reading IMS spectra together with RAD, LEL and TVOC channels

Technical Specifications

LSJ SEED-PM Specification Sheet

All parameters below are factory specifications of the LSJ SEED-PM portable IMS trace detector. The source states both pg-class sensitivity and a quantified Sarin (GB) detection limit of 0.5 mg/m³; confirm that figure, and every configuration-specific value, against the latest manufacturer datasheet before ordering.

Parameter	Stated Specification
Model	LSJ SEED-PM
Detection principle	Ion Mobility Spectrometry (IMS)
Sample collection	Suction sampling; supports solid, liquid and gas states
Chemical warfare agents	Tabun (GA), Sarin (GB), Soman (GD), VX, VS, mustard gas (HD), lewisite (L), nitrogen mustard (HN3), hydrocyanic acid (AC), phosgene (CG) and related chemical gases
Toxic industrial chemicals	Ammonia (NH₃), chlorine (Cl₂), hydrogen sulfide (H₂S), nitric oxide (NO), nitrogen dioxide (NO₂), formaldehyde (HCHO), toluene and other toxic / harmful gases
Additional threat classes	Combustible gas (LEL), explosives trace, drugs, nuclear radiation and TVOC
Sample database	600+ sample types; expandable library
Detection limit	Sarin (GB): 0.5 mg/m³; pg-class sensitivity stated
Analysis time	2–32 seconds (selectable)
Warm-up time	≤ 10 min
Alarm modes	Audible and visual alarm; selectable covert (silent) alarm
Display	4.3-inch colour LCD touchscreen
On-screen channels	IMS spectra, radiation level μSv/h, combustible gas %LEL, TVOC ppm
Data storage	300,000+ records; storage, retrieval, export and USB backup
Communication	Ethernet (WAN), 2 × USB, wireless data upload
Power supply	AC 110/220 V, 50/60 Hz; DC 24 V working (18 V rated); lithium-ion battery 5+ h continuous / 10+ h standby
Operating environment	−20 °C to +55 °C; relative humidity ≤ 95%RH
Dimensions (L×W×H)	367 × 138 × 169 mm (±10%)
Weight	3 kg (±10%)
Self-diagnostics	Automatic calibration, power-on self-check, real-time fault diagnosis, self-cleaning and manual cleaning
Startup	One-key startup; ready to use with no manual intervention

Frequently Asked Questions

Procurement and Field Use

Answers to common questions from procurement teams and end users. Confirm all commercial and technical terms with the supplier.

What substances can the LSJ SEED-PM detect?

Six threat classes in one instrument: chemical warfare agents (GA, GB, GD, VX, VS, HD, L, HN3, AC, CG and related gases), toxic industrial chemicals (including NH₃, Cl₂, H₂S, NO, NO₂, HCHO and toluene), combustible gas (LEL), explosives trace, drugs and nuclear radiation, with TVOC reported as well. Its expandable library holds more than 600 sample types.

How fast does it return a result?

Analysis takes 2–32 seconds and is selectable by mission. Warm-up takes no more than 10 minutes, after which one-key startup leaves the unit ready with no manual intervention. Sensitivity is stated as pg-class, with a quantified Sarin (GB) detection limit of 0.5 mg/m³.

Can it test solids, liquids and gases?

Yes. The front suction sampling inlet accepts solid, liquid and gaseous samples in the same workflow, so operators do not swap probes or consumables between sample states.

What does the screen show, and how does it alarm?

The 4.3-inch colour touchscreen shows IMS spectral fingerprints plus radiation level (μSv/h), combustible gas (%LEL) and TVOC (ppm). On detection it raises an audible and visual alarm and displays the agent type; a covert silent alarm mode is selectable for discreet checkpoint and patrol use.

How long does the battery last, and where can it operate?

The lithium-ion battery supports more than 5 hours of continuous operation (10+ hours standby), with AC 110/220 V and DC power options. The instrument operates from −20 °C to +55 °C at relative humidity up to 95%RH and weighs 3 kg.

How are detection results stored and shared?

The SEED-PM stores no fewer than 300,000 detection records with storage, retrieval and export functions, plus USB backup. Data can be uploaded through WAN Ethernet, two USB ports or a wireless connection for command-post review and evidentiary records.

Supplier Support

Support from Selection to Service

Technical Selection

Discuss the threat classes you need to cover, the sample types you will present, and the library expansion you expect over the equipment's service life.

Tender and Demonstration Support

Request the factory datasheet, configuration options and a demonstration for agency or programme evaluation, with the documents your tender process requires.

Calibration and Service

Confirm calibration intervals, consumable and spare-part supply, and repair arrangements for your delivery market before the unit enters service.

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