Underground Safety CH₄ Detection CH Swiss Precision IN Made for India

Mining Safety Sensors – Saving Lives Underground

NANOZ MEMS MOX sensors detect methane, CO, H₂S at ppb levels – before they become deadly. In a country where 92% of mine explosions are triggered by methane, our Swiss-made sensors with AI-powered drift compensation give you precious seconds to save lives. Combined with ATEX Flügelrad anemometers for ventilation monitoring.

$285 Bn

Mining Revenue 2024

1.04 Bn T

Coal Production 2025

92%

Explosions from CH₄

<100ms

NANOZ Response Time

CH₄ Alert 1%

Ventilation OK

ATEX Zone 1

METHANE KILLS – Detection Saves Lives

53% of all coal mining fatalities in India are caused by methane explosions. Methane is colorless, odorless – miners cannot detect it without sensors. At 5-15% concentration, it becomes explosive. Our sensors alert at 1% – giving precious time to evacuate.

53%

Fatalities from CH₄

5-15%

Explosive Range

Legal Alert Level

<100ms

NANOZ Response

IN India Mining Industry

A $285 Billion Industry – Safety is Non-Negotiable

India's mining sector powers the nation – from coal for energy to iron ore for steel. Underground operations need the best safety technology.

$285 Bn

Mining Revenue 2024
(11.7% CAGR)

🪨

1.04 Bn T

Coal Production 2025
( 1.5 Bn T by 2030)

289.4 MT

Iron Ore FY25
(4th Largest Producer)

1,973

Reporting Mines
(FY25)

#1 Coal Producer

World's Largest

#2 Iron Ore

Major Global Exporter

#3 Bauxite

Aluminium Industry

#4 Zinc

Major Global Producer

️ Hazardous Gases

7 Gases That Kill – We Detect Them All

Underground mines are filled with invisible killers. NANOZ sensors monitor all critical gases in real-time.

CH₄

Methane (Firedamp)

92% of mine explosions
Colorless, odorless
Lighter than air

Explosive: 5-15% | Alert: 1%

Carbon Monoxide

Silent killer
Fire indicator
Highly toxic

TWA: 25 ppm | IDLH: 1200 ppm

H₂S

Hydrogen Sulfide

Rotten egg smell
Paralyzes smell nerves
Extremely toxic

TWA: 10 ppm | IDLH: 50 ppm

CO₂

Carbon Dioxide

Blackdamp component
Displaces oxygen
Asphyxiant

TWA: 5000 ppm | Alert: 0.5%

O₂

Oxygen

Must be 19.5-23%
Below 16% = danger
Below 10% = death

Safe: 19.5-23% | Alert: <19%

SO₂

Sulfur Dioxide

Diesel exhaust
Blasting byproduct
Respiratory irritant

TWA: 2 ppm | IDLH: 100 ppm

NO₂

Nitrogen Dioxide

Blasting fumes
Diesel emissions
Lung damage

TWA: 3 ppm | IDLH: 20 ppm

NH₃

Ammonia

Refrigerant leaks
Explosive products
Strong irritant

TWA: 25 ppm | IDLH: 300 ppm

ATEX Certified for Explosive Atmospheres

Underground coal mines are Zone 1 explosive environments – where methane-air mixtures can ignite at any time. Our ATEX-certified sensors meet the strictest European standards for intrinsically safe equipment.

The NANOZ MEMS MOX technology draws minimal power, preventing any spark that could trigger an explosion. Combined with our ATEX Flügelrad anemometers for ventilation monitoring, you get complete underground atmosphere control.

Ex ia IIC T4

ATEX Classification

Zone 1/2

Approved Zones

IP66/IP67

Ingress Protection

IECEx

International Cert

️ NEW: PSA Smart Multigas Protection Tags

Personal wearable gas detection for every miner. NANOZ-powered PSA tags detect 4+ gases simultaneously, with real-time alerts, GPS tracking, and automatic emergency response. Worn on belt or helmet – always in the breathing zone.

️

4-Gas Detection

CH₄, CO, H₂S, O₂ – all critical mining gases in one compact wearable device

Real-Time Telemetry

Wireless data to control room, GPS location tracking, automatic alerts

Triple Alarm

Audible (95dB), visual (LED), vibration – impossible to miss even underground

24h+ Battery

Full shift operation, fast charging, intrinsically safe (ATEX Zone 1)

NANOZ MEMS MOX sensors – ppb detection

Man-down detection (motion alert)

ATEX II 2G Ex ia IIC T4 certified

IP67 dust/water protection

AI drift compensation – no manual calibration

Fleet management via cloud dashboard

DGMS Compliance

Directorate General of Mines Safety

100% compliance with Coal Mines Regulations 2017 – avoid penalties up to ₹5 Crore

DGMS Gas Monitoring Requirements

CH₄ General Limit	Max 1.0%
CH₄ Alarm Trigger	0.5%
CH₄ Auto-Shutdown	1.5%
Oxygen Minimum	≥19%
CO Maximum	50 ppm
Monitoring Type	Continuous
Calibration	Monthly (documented)
Telemonitoring	Mandatory Cat I/II

DGMS Penalties for Non-Compliance

Missing/Defective Gas Sensors ₹1-5 Lakhs + Stop

No Continuous CH₄ Monitoring ₹5-10 Lakhs

Ventilation Below Standard ₹2-5 Lakhs/day!

Missing Calibration Records ₹1-3 Lakhs

Gas-Related Accident ₹50L - 5 Cr + Criminal

Repeated Violations MINE CLOSURE

How TSRAI NANOZ Ensures 100% DGMS Compliance

Continuous Monitoring

24/7 real-time data for all gases – CH₄, CO, H₂S, O₂

AI Auto-Calibration

No manual calibration needed – always accurate, always documented

Telemonitoring

Wireless data to control room – DGMS Cat I/II compliant

Audit-Ready Reports

Automatic logs, exportable reports – pass any DGMS inspection

Technical Specifications

NANOZ MEMS MOX & ATEX Flow Sensors

Swiss-engineered precision for the harshest underground environments

NANOZ MEMS MOX

Sensor Size2.8×2.8×1.6mm
Detectionppb level
GasesCH₄, CO, H₂S, O₂
Response<100ms
AI AlgorithmDrift Comp.
Power<50mW (IS)

MiniAir micro ATEX

Flow Range0.3-40 m/s
Accuracy±1.0% F.S.
Temp Range-30 to +140°C
ATEXII 2G EEx ia IIC T6
MiningI M2 EEx ia I
Head Ø11×15mm micro

TMS 5.0 Pro Pressure

Pressure Range0-250 Pa
Accuracy±0.5 Pa
Resolution0.1 Pa
Output4-20mA, Modbus
ProtectionIP65
Temp Comp.-20 to +60°C

Applications

Critical Monitoring Points in Underground Mines

From the working face to the ventilation shaft – comprehensive safety coverage

Working Face / Longwall

Continuous CH₄ monitoring at coal face
Real-time alert to control room
Automatic shearer shutdown at 1.5%
Multi-point redundant sensors

<100ms

Alert Response Time

Main Ventilation Shafts

Airflow velocity monitoring
CH₄ dilution verification
Return air quality tracking
Fan performance optimization

15-25%

Ventilation Energy Savings

Development Headings

Blasting fume clearance monitoring
NO₂/CO levels post-blast
Auxiliary fan flow verification
Safe re-entry confirmation

30%

Faster Re-entry

Goaf / Sealed Areas

Spontaneous combustion detection
CO trend monitoring (fire indicator)
Oxygen depletion tracking
Seal integrity verification

24/7

Continuous Monitoring

Haulage / Transport

Diesel exhaust monitoring
CO/NO₂ from equipment
Belt conveyor corridor airflow
Refuge chamber air quality

99.5%

Compliance Rate

TMS Integration

Telemonitoring system compatible
DGMS compliance reporting
Historical data logging
Predictive maintenance alerts

100%

DGMS Compliant

Total Cost of Ownership

The True Cost of Cheap Sensors Underground

5-Year TCO for a medium underground coal mine (600 sensors + 300 PSA tags)

Standard Catalytic/EC Sensors

HIGH RISK

Initial Equipment (600×₹15K)₹90 Lakhs
Replacements (3× in 5 years)₹2.7 Cr
Calibration (monthly × 600 × 60)₹1.8 Cr
False Alarms / Production Loss₹1.5 Cr
DGMS Fines (avg ₹20L/year)₹1.0 Cr
No Ventilation Optimization₹0 saved

5-Year TCO ₹7.9 Cr

TSRAI NANOZ Complete System

DGMS COMPLIANT

NANOZ Multi-Gas (400×₹1.1L)₹4.5 Cr
MiniAir ATEX Flow (150×₹1.4L)₹2.1 Cr
TMS 5.0 Pressure (50×₹1L)₹52 Lakhs
PSA Tags (300×₹55K)₹1.6 Cr
Gateways & Central Unit₹1.1 Cr
Software + AI Platform₹2.3 Cr

Total Investment ₹12.2 Cr

Ventilation Energy – The Biggest Cost Driver

Underground mines spend 40-60% of total energy on ventilation (₹25-60 Cr/year)

Small Mine (4 MW)

₹24.5 Cr/yr

Energy Cost

Medium Mine (6 MW)

₹36.8 Cr/yr

Energy Cost

Large Mine (10 MW)

₹61.3 Cr/yr

Energy Cost

Demand Controlled Ventilation (DCV) with NANOZ AI

VFD speed control + optimized air distribution + reduced peak loads

30-40%

Energy Saved

Annual Savings with NANOZ (Medium Mine)

₹11 Cr

Ventilation Energy
(30% of ₹36.8 Cr)

₹40 L

DGMS Penalties
(avoided)

₹75 L

Reduced Downtime
(95% less false alarms)

₹1 Cr

Insurance
(lower premiums)

₹50 L

Sensor Maintenance
(AI auto-calibration)

Total Annual Savings

₹13-15 Crore/Year

Investment: ₹12.2 Cr | Payback: 10-12 Months | 5-Year ROI: 450%+

Why TSRAI NANOZ

10 Reasons to Choose Us for Mining

ATEX Zone 1/2
Intrinsically Safe

7+ Gases
CH₄, CO, H₂S, O₂...

<100ms Response
Faster Than Competition

AI Drift Compensation
No Manual Calibration

8-12 Year Life
No Replacements

TMS Compatible
Modbus, 4-20mA

DGMS Compliant
Indian Standards

100 Years Heritage
Since 1925

India Support
Local Service

Lives Saved
Priceless

Mining Safety Sensors – Saving Lives Underground

METHANE KILLS – Detection Saves Lives

A $285 Billion Industry – Safety is Non-Negotiable

7 Gases That Kill – We Detect Them All

ATEX Certified for Explosive Atmospheres

️ NEW: PSA Smart Multigas Protection Tags

Directorate General of Mines Safety

DGMS Gas Monitoring Requirements

DGMS Penalties for Non-Compliance

How TSRAI NANOZ Ensures 100% DGMS Compliance

NANOZ MEMS MOX & ATEX Flow Sensors

NANOZ MEMS MOX

MiniAir micro ATEX

TMS 5.0 Pro Pressure

Critical Monitoring Points in Underground Mines

Working Face / Longwall

Main Ventilation Shafts

Development Headings

Goaf / Sealed Areas

Haulage / Transport

TMS Integration

The True Cost of Cheap Sensors Underground

Standard Catalytic/EC Sensors

TSRAI NANOZ Complete System

Ventilation Energy – The Biggest Cost Driver

Annual Savings with NANOZ (Medium Mine)

ROI Summary for Mining Safety

10 Reasons to Choose Us for Mining