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[Archive] Sensor Probe

Sensor Probe Add-On – Continuous Temperature Monitoring for Cook Chill, Hot Hold, and Immersed Applications

$20 per unit (exclusive of sensor, in USD)

Overview

The Sensor Probe Add-On is a high-accuracy temperature probe designed to connect to the Dragino LHT65S or other compatible LoRaWAN sensors via USB-C interface. It provides real-time, continuous temperature monitoring in scenarios where ambient readings are insufficient, such as inside food, liquids, or enclosed thermal environments.

This add-on enables precise tracking of core product temperatures, and is ideal for HACCP-critical applications where monitoring must be accurate, uninterrupted, and non-ambient.

Technical Specifications

  • Connector: USB-C (C-USB) interface to sensor

  • Cable Length: 0.5 m (extendable up to 5 m)

  • Probe Type: Food-grade stainless steel

  • Measurement Range: −55 °C to +125 °C

  • Accuracy: ±0.5 °C (from −50 °C to +100 °C)

  • Cable Rating: Waterproof, heat-resistant insulation (suitable for immersion)

  • Mounting: Direct probe insertion, clip holders optional

Use Cases

Cook Chill Processes

In food production environments using blast chillers, the probe can be directly inserted into food portions to verify rapid chilling from cooked temperatures to below 5 °C within safe timeframes. This enables full traceability for compliance and audit records.

Hot Holding / Bain-Marie Monitoring

The probe can be submerged in a hot water bath within bain-marie units to ensure food is maintained above 60 °C, avoiding conditions that allow bacterial growth. Supports continuous validation of hot holding temperatures without manual probing.

Immersion Monitoring (Soups, Gravies, Sauces)

The sensor probe can be inserted directly into hot or cold liquid products to continuously monitor temperature over time. Ideal for:

  • Gravies and soups held in dispensers

  • Stews in reheating wells

  • Hot-fill applications in central kitchens

Pre-Delivery Validation / Transport Readiness

Use the probe to monitor products just before dispatch, ensuring they meet holding or cooling criteria. Sensors can log data during pre-staging before final delivery, supporting cold-chain assurance.

Integration & Functionality

  • Plug-and-play with LHT65S using C-USB port

  • Probe readings are automatically used in place of internal ambient sensor

  • Compatible with DIG dashboard, showing real-time values and alert thresholds

  • Supports configurable send intervals and alert logic (e.g., above 60 °C for hot hold, below 5 °C for chill)

Benefits

  • Accurate core readings for product safety

  • Non-ambient validation for regulatory compliance (HACCP, ISO 22000)

  • No manual probing needed—automated logs reduce labor

  • Waterproof and immersion-ready for liquid and semi-solid applications

  • Secure connection with high-quality USB-C connector

Add the Sensor Probe Add-On to your temperature monitoring strategy and gain continuous visibility into critical food safety thresholds—whether you're chilling, holding, or heating.

Let your data tell the full story, from core to compliance.

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