ThermalGuard IoT:
Precision HVAC & Cold Chain Telemetry

Engineered for commercial HVAC systems, server room AC units, and sub-zero cold storage facilities. Dual-probe Supply/Return Delta-T (ΔT) diagnostics, Sensirion SHT31 humidity pods, ESP32-S3 Edge AI anomaly detection, and instant WhatsApp & Telegram push alerts.

THERMALGUARD DUAL-MODE TELEMETRY
NORMAL RANGE
SUPPLY AIR DUCT (PROBE 1)
12.4°C
RETURN AIR INTAKE (PROBE 2)
23.2°C
DELTA-T (ΔT) EFFICIENCY
ΔT 10.8°C (OPTIMAL)
RELATIVE HUMIDITY & DEW PT
48% RH (COMFORT OK)
ThermalGuard IoT Dual Mode HVAC and Cold Storage Telemetry 3D Graphic

Built for Smart HVAC, Server Rooms & Commercial Cold Storage

ThermalGuard IoT prevents catastrophic downtime and inventory loss by combining dual-probe thermodynamic calculations with low-power ESP32-S3 Edge AI microcontrollers.

Supply / Return Delta-T (ΔT) Diagnostics

Calculates real-time temperature differential between AC supply vents and return air grilles. Instantly flags low refrigerant, dirty air filters, and compressor valve degradation before total system failure.

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Server Room & CRAC Overheating Alerts

Dispatches instant sub-second Telegram and WhatsApp push notifications the moment an office AC, data closet, or server rack room breaches critical thermal thresholds.

Sub-Zero Walk-in & Deep Freeze Monitoring

High-precision temperature monitoring down to -55°C for walk-in commercial freezers, pharmaceutical cold storage, vaccine vaults, and refrigerated transport vehicles.

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Sensirion SHT31/40 Precision Humidity

Industrial micro-heated humidity pods eliminate sensor ice-over in sub-zero freezers while delivering precision relative humidity (% RH) and dew-point analytics for HVAC comfort.

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ESP32-S3 Edge AI Compressor Model

On-device Xtensa LX7 dual-core vector neural models analyze temperature rate-of-change (dT/dt) curves to detect short-cycling, defrost drift, and unsealed door anomalies.

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Light Intrusion & Door Seal Detection

LDR ambient light sensor tracks door-open duration and issues escalation alerts if a walk-in freezer or IT room door is left unsealed.

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24/7 Local SQLite Audit Logging

Private on-premise SQLite database logs periodic thermal telemetry for food safety health inspections, regulatory compliance, and energy audits without recurring monthly fees.

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Cloudflare Tunnel Encrypted Access

Outbound TLS 1.3 encrypted websocket pipeline delivering responsive mobile browser dashboards without exposing open router ports or static public IPs.

Technical Specifications & Implementation

  • Microcontroller Platform: ESP32-S3 Dual-Core Xtensa LX7 (240MHz, hardware Vector AI acceleration, 2.4GHz Wi-Fi).
  • HVAC & AC Delta-T (ΔT) Engine: Dual-point probe placement across AC Supply vent and Return air intake computing real-time thermal transfer efficiency.
  • Primary Temperature Probe: DS18B20 1-Wire Waterproof Stainless Steel Probe rated from -55°C to +125°C with ±0.5°C accuracy.
  • Sub-Zero Humidity Sensor: Sensirion SHT31 / SHT40 Industrial Pod with integrated micro-heaters to prevent ice crystal lockup in freezing environments.
  • Instant Alert Dispatches: Direct webhook integrations with WhatsApp Gateway (CallMeBot) and Telegram Bot API for real-time mobile push notifications.
  • Zero Cloud Lock-in: 100% on-premise SQLite audit logging and local web dashboard with optional encrypted Cloudflare Tunnel for secure remote viewing.
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Deploy ThermalGuard IoT in Your Facility

Need custom temperature alert thresholds, multi-zone HVAC arrays, or server room monitoring? Contact our engineering team for a customized hardware deployment.

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