Milesight offers a full suite of IoT sensors that directly support ESG reporting — energy monitoring, air quality, water management, and smart control — beyond just occupancy counting. All connect via LoRaWAN to Vemcount IoT dashboards. Gateway required: Milesight UG65/UG67/SG50 → ttn.vemcount.app UDP 1700.

Why IoT sensors matter for ESG

Buildings generate 34% of global CO₂ emissions. Milesight sensors directly address all three pillars:

Environmental — energy submetering identifies wasteful loads; CO₂ monitoring drives demand-controlled ventilation; water monitoring prevents waste
Social — IAQ monitoring ensures healthy indoor environments; CO₂ <1000ppm directly improves cognitive performance
Governance — automated, auditable data for BREEAM, LEED, WELL, EU EPBD compliance, and sustainability disclosures

🔌 Energy monitoring

CT10x Series — Smart Current Transformers (circuit-level energy metering)

The core ESG energy sensor. Non-invasive clamp-on design — installs on live wires in existing panels without cutting power or rewiring. Provides circuit-level consumption data for Scope 2 carbon calculations.

CT101

Up to 100A — office circuits, lighting, small HVAC

CT103

Up to 300A — larger loads, distribution boards

CT105

Up to 500A — main incomer, large commercial loads

Measurement

True RMS current, accumulated ampere-hours (kWh equivalent)

Accuracy

±1% for currents >5A, ±3% at or below 5A

Sampling rate

3.3 kHz — captures harmonics and transients

Self-powered

Powered from the monitored circuit — no battery, no wiring

Temperature probe

External NTC included (-20°C to +100°C) — detects overheating equipment

No shutdown needed

Installs on live wires — ideal for occupied buildings, schools, hospitals, concert halls

ESG uses

Scope 2 electricity reporting, energy audits, identifying waste, net-zero tracking, per-tenant submetering

CT3xx Series — 3-phase current transformers

CT303, CT305, CT310 for three-phase industrial/commercial systems. Same non-invasive principle — essential for manufacturing, data centres, and large commercial buildings.

WS501 / WS502 — Smart Wall Switches with energy metering

Drops straight into existing wall boxes as a direct retrofit replacement for standard switches. Adds LoRaWAN remote control AND per-circuit energy monitoring simultaneously.

Models

WS501 (1-gang), WS502 (2-gang)

Measurements

Voltage (VAC), current (mA), active power (W), power factor, energy (kWh) per gang

Accuracy

±3% typical, ±5% max

Control

Local button or remote via LoRaWAN — schedule automated after-hours shutdown

Safety

Overcurrent protection, switch lock, power failure memory, multicast group control

ESG uses

Lighting energy monitoring per room/zone, automated shutdown schedules, individual circuit ESG data

WS51x — Smart Wall Socket with energy monitoring

In-wall smart socket (EU Type F/FR Type E). Monitors plugged-in device consumption in real time. Remote ON/OFF — eliminates standby waste.

Monitoring

Real-time power, cumulative energy (kWh), overload alerts

Control

Remote ON/OFF, scheduled switch, multicast (up to 4 devices), D2D automation

ESG uses

Standby power elimination, plug-load monitoring, per-workstation energy tracking

EM300-DI — Pulse Counter (utility meter integration)

Connects to any existing meter with pulse output — water meters, gas meters, electricity meters. Converts pulses to wireless LoRaWAN data. The fastest path to utility submetering without replacing meters.

Compatible signals

Dry contact, reed switch, open collector pulse outputs

Noise filtering

Auto-filters signals <250μs — prevents false counts from nearby electrical equipment

ESG uses

Water consumption (litre-level), gas consumption, electricity submetering per floor/tenant, automated utility ESG reporting

🌬️ Air quality & carbon monitoring

AM Series — Indoor Air Quality (IAQ) sensors

Indoor air quality is a core ESG-Social metric. CO₂ >1000ppm causes measurable cognitive decline; optimal range is 400–800ppm.

AM102 / AM102L

CO₂ + Temperature/Humidity. Entry level, up to 9 years battery.

AM103 / AM103L

CO₂ + Temperature + Humidity. Tri-colour LED + emoticon display. 3–4 year battery. NDIR double-band CO₂ (factory calibrated). NFC config.

AM307 / AM308

9-in-1: CO₂, Temperature, Humidity, Light, TVOC, PM2.5, PM10, Barometric pressure + HCHO or O₃. E-ink display option.

AM319

Full 9-in-1 IAQ with E-ink screen and emoticon comfort indicator. Comprehensive parameter set for WELL/BREEAM evidence.

Coverage guide: 1 sensor per 100–150m² for offices and classrooms. High-traffic areas require additional coverage.

ESG uses: WELL Building certification, BREEAM credits, demand-controlled ventilation (auto-trigger HVAC on CO₂ levels), occupant health KPIs, IAQ compliance reporting.

Best ESG ROI combination: AM103 CO₂ sensors + Milesight WT thermostats or HVAC controllers via D2D. HVAC activates automatically when CO₂ exceeds threshold — maintains air quality while eliminating unnecessary ventilation energy use. This is demand-controlled ventilation without BMS integration.

EM500-CO2 — Outdoor CO₂ sensor

Industrial outdoor CO₂ + Temperature + Humidity + Barometric pressure. NDIR double-band sensor. Up to 15km rural range. For perimeter carbon monitoring, greenhouse gas stations, outdoor campus air quality, and carbon capture verification.

💧 Water management

EM500-SWL — Submersible Water Level Sensor

Measures liquid levels in wells, tanks, and open water — essential for water consumption monitoring and conservation. Designed for harsh outdoor environments.

ESG uses: Water tank level monitoring, rainwater harvesting, irrigation consumption tracking, flood early warning.

EM300-MLD / EM300-SLD — Leak detection

EM300-MLD

Membrane type — large surface areas, under raised floors, along pipe corridors

EM300-SLD

Spot type — targeted points (under sinks, around joints, at drains)

ESG uses: Water waste prevention, early maintenance alerts, water conservation reporting.

WS303 — Mini Leak Detection Sensor

0.5mm detection threshold, IP67, 5-year battery, gold-plated probes. Compact spot detector for bathrooms, plant rooms, kitchens, and server rooms. See restroom sensors article for full specs.

🏭 Additional ESG-relevant sensors

GS101 — Single Gas Detector

Configurable for CO, H₂S, NO₂, O₃, SO₂, and other gases. Worker safety and indoor air quality compliance in industrial or semi-industrial environments. D2D for direct ventilation activation.

EM500 Series — Outdoor environment monitoring

Industrial-grade outdoor sensors: soil moisture (EM500-SMT), pipe pressure (EM500-PP), water level (EM500-SWL), CO₂ (EM500-CO2), PT100 temperature probes (EM500-PT100). For campus environmental monitoring and outdoor infrastructure tracking.

ESG data in Vemcount

All sensor data flows via LoRaWAN gateway to Vemcount's IoT dashboard. Configure:

Energy dashboards — kWh per zone/circuit from CT10x + WS50x data
Scope 2 carbon — apply grid carbon intensity factor to electricity kWh readings
IAQ dashboards — CO₂ ppm, temperature, humidity trends per space over time
Water consumption — from EM300-DI pulse counter data in litres/m³
Alerts — CO₂ >1000ppm, energy anomalies, leak detection events
ESG exports — historical data export for sustainability reports, BREEAM/LEED/WELL evidence packs

Recommended ESG bundle per building

Energy metering

CT101/CT103 on main incomer + key circuits; WS501/WS502 on lighting circuits

Air quality

AM103 per 100–150m²; AM319 for premium or client-facing spaces

Water

EM300-DI on water meter pulse; WS303/EM300-SLD in wet areas

Control

WS501 lighting switches + WS202 PIR for occupancy-driven shutoff

Gateway

1× UG65 per floor (covers ~200m radius indoors)

7PM

GMT+2

7PM

GMT+2

7PM

GMT+2

Who We Are

Aliquam Dui Diam, Tincidunt Eget Nulla Eget, Dictum Feugiat Felis. Cras Mattis Eget Tellus Quis Fringilla. Morbi Molestie Enim

Aliquam dui diam tincidunt eget nulla eget dictum feugiat felis.