hardware

Temperature Monitoring Hardware for Cold Chain Fleets

Multi-probe temperature and humidity sensors for refrigerated vehicles, cold stores, and pharmaceutical transport — with HACCP-compliant logging and real-time breach alerts.

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Features

Multi-Probe Support

Monitor up to 4 temperature zones per vehicle from a single telematics device — front, rear, and compartment-level monitoring for multi-temperature trailers.

Real-Time Breach Alerts

Instant SMS, email, and push notification when temperature breaches the configured min/max threshold — with GPS location, sensor ID, and current reading.

HACCP-Compliant Logging

Continuous temperature logging with configurable intervals (1–60 seconds) and tamper-evident records suitable for HACCP, BRC, and food safety audit requirements.

Humidity Monitoring

Combined temperature and relative humidity sensors for pharmaceutical transport, fresh produce, and moisture-sensitive cargo.

Reefer Unit Integration

Direct integration with Thermo King and Carrier reefer units via CAN bus — read setpoint, return air, supply air, and defrost status from the refrigeration unit itself.

Calibration Certificates

Sensors supplied with UKAS-traceable calibration certificates — essential for pharmaceutical GMP compliance and food safety audit requirements.

Specifications

Probe Types
NTC thermistor probe (food and logistics standard),PT100 RTD probe (pharmaceutical precision),Combined temperature + humidity sensor (RH%)
Measurement Range
-40°C to +125°C (standard) / -196°C to +260°C (extended PT100)
Accuracy
±0.3°C (PT100) / ±0.5°C (NTC) at calibration temperature
Logging Interval
Configurable 1s – 60s
Connectivity
1-Wire digital bus (up to 8 probes on single bus)
Certifications
UKAS-traceable calibration, CE marked
## Overview Cold chain telematics is not just about knowing where your refrigerated vehicles are — it's about proving that the temperature was maintained throughout the journey. Our temperature sensor hardware provides continuous, tamper-evident temperature logging that integrates directly with the telematics platform, giving fleet operators the data they need to comply with HACCP, BRC Global Standards, EU food transport regulations, and pharmaceutical GDP guidelines. ## Probe Types for Different Applications **NTC Thermistor Probes** are the standard choice for food transport and general cold chain logistics. They offer a wide measurement range (typically -40°C to +125°C), fast response times, and cost-effective multi-probe configurations. Used in the vast majority of refrigerated food transport applications. **PT100 RTD Probes** are the precision choice for pharmaceutical transport, clinical trial materials, and any application where accuracy better than ±0.5°C is required. They offer ±0.3°C accuracy across the measurement range and are supplied with UKAS-traceable calibration certificates — a mandatory requirement for pharmaceutical GDP and GCP transport documentation. **Combined Temperature + Humidity Sensors** measure both temperature and relative humidity simultaneously. Required for fresh produce, flowers, and moisture-sensitive pharmaceutical products where humidity control is as important as temperature. ## Reefer Unit Integration For vehicles equipped with Thermo King or Carrier refrigeration units, our hardwired GPS trackers with CAN bus capability can read data directly from the reefer controller — including setpoint temperature, return air temperature, supply air temperature, defrost status, alarm codes, and fuel level. This eliminates the need for separate temperature probes in many applications and provides a richer dataset for compliance reporting. ## HACCP Compliance Documentation The platform generates HACCP-compliant temperature reports for each journey — showing continuous temperature traces, breach events with timestamps and locations, and a chain-of-custody record from loading to delivery. Reports are exportable in PDF and CSV format and can be configured for automatic delivery to customers, auditors, or QA teams at the end of each journey. ## Cold Store and Warehouse Monitoring Temperature sensors are not limited to vehicles. Our cellular-connected sensor modules can monitor fixed cold stores, pharmaceutical fridges, and warehouse temperature zones — with the same breach alerting, logging, and reporting as vehicle-based monitoring. All data appears in the same telematics platform dashboard.

Ready to deploy?

Talk to our team about Temperature Sensors — Cold Chain Telematics Hardware for your fleet.

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