Designed and Developed in the UK

Five alarms. One device. Zero compromise on cold chain integrity.

The Holtronic neo® Penta is a compact, single-use electronic temperature alarm indicator with up to five programmable LED threshold alerts. At just 6g, with ±0.5°C accuracy, irreversible tamper-proof breach records and a 2-year shelf life, it is the complete single-use cold chain monitoring solution for pharmaceuticals, food safety and logistics.

single use indicators, electronic temperature indicators

6g
weight
±0.5°C
accuracy
2 year
shelf life

Why use a single use temperature indicator?

The right tool for one-way cold chains and high-volume monitoring

Single-use indicators eliminate complexity, reduce risk and provide the cleanest possible compliance record. For outbound-only logistics, high-volume deployments and applications where tamper-evidence is non-negotiable, a single-use indicator is simply the most appropriate tool.

🔒 No carry-over risk
Each unit is a fresh, credible record from the first moment of activation.
⚡ Zero-friction deployment at scale
Activate, attach, ship. The simplicity is itself a quality control advantage. Fewer steps means fewer errors.
🎯 Ideal for one-way shipments
Outbound pharmaceutical distribution, food shipments, one-way logistics flows are ideal single-use indicator use.

Pre-configured for every major cold chain application

The neo® Penta is available in industry-standard threshold configurations covering pharmaceutical cold chain, ambient and controlled room temperature storage, and frozen goods monitoring.

Custom threshold configurations are available. Contact the Holtronic team to specify a bespoke configuration for your product and supply chain requirements.

Stock configurations include:

pharmaceutical home delivery temperature indicator
neo® Penta DF
0ºC, 2-8ºC
See more
room temperature shipping indicator
neo® Penta DG
15-25ºC, 30ºC
Read more
one-way cold chain complete temperature monitoring indicator for pharmaceuticals, food
neo® Penta DH
0ºC,2-25ºC, 30ºC
See more

Activate. Monitor. Alert. Decide.

The neo® Penta’s four-stage process requires no training, no infrastructure and no specialist equipment at any point. The entire intelligence of the device is self-contained and legible to anyone.

Change step

Activation

The neo® Penta activates with a press-and-hold of the activation button. A start delay allows the indicator to be attached to the product and placed within the monitored environment before logging begins preventing false readings caused by handling temperature during packing.

Once active, the green power LED flashes every 8 seconds to confirm that monitoring is in progress. The indicator is immediately ready for attachment to individual products, placed inside packaging, or fixed to outer cartons using the self-adhesive backing — with no additional tools, hardware or pairing process required.

Press-and-hold activation: no pairing, no configuration

Programmable start delay prevents handling false alarms

Self-adhesive backing for attachment to any surface or packaging

Built for the environments where temperature monitoring is a legal requirement

The neo® Penta is designed and specified for pharmaceutical, food and logistics environments where temperature monitoring is not discretionary. 

Its irreversible LED record, unique serial number traceability and precision accuracy provide the documented evidence that regulators, quality auditors and food safety inspectors require.

Irreversible, tamper-evident record

Once a threshold LED activates, it cannot be cleared by anyone in the supply chain. This provides auditors with unambiguous evidence that the breach record has not been manipulated.

Unique serial number traceability

Every neo® Penta carries a unique serial number enabling full production tracking and individual unit traceability — essential for pharmaceutical recalls, food incident investigations and GDP audit trails.

NIST traceable calibration accuracy

±0.5°C accuracy verified against NIST traceable standards meets pharmaceutical monitoring requirements and food safety regulations across all major markets.

No device or infrastructure needed

Because the neo® Penta’s breach record is visual and self-contained, there is no dependency on systems, software or connectivity for compliance evidence — reducing audit complexity and operational risk.

Where the neo® Penta is deployed

Any supply chain that moves temperature-sensitive products in one direction — from producer to consumer, from manufacturer to pharmacy, from processor to retailer — is an application for the neo® Penta.

GDP / GxP
Pharmaceutical Distribution

neo® Penta provides product-level temperature evidence at 2–8°C with both upper and lower threshold alarms — covering heat excursion and freeze damage in a single device.

 

Used in
  • Vaccines
  • Biologics
  • Insulin
  • Refrigerated medicines
HACCP
Chilled Food Logistics

The neo® Penta provides HACCP-compliant temperature evidence at every product level, supporting both internal quality control and regulatory inspection readiness.

Used in
  • Fresh meat
  • Fish
  • Dairy
  • Prepared meals
Last Mile
E-commerce & Direct-to-Consumer

Where the consumer receives a chilled product without the option of supply chain inspection at an intermediate point. The Neo Penta provides the consumer with visible temperature assurance on arrival.

Used by
  • Pharmaceutical mail order
  • Meal kit delivery
  • Speciality food subscription
  • Direct-to-consumer healthcare
International Cold Chain
Air Freight & International Shipping

The neo® Penta’s 9-month operating life and 2-year shelf life support pre-loaded indicator deployment for extended international supply chains.

Used by
  • Long-haul pharmaceutical
  • Perishable food shipments
  • Multiple temperature zones
  • International cold chain
GCP / GxP
Clinical Trials & Research Logistics

 Each neo® Penta’s unique serial number supports individual unit traceability essential for clinical trial quality systems.

Used in:
  • Investigational medicinal products
  • Biological samples
  • Gene therapy materials
  • Regulatory submissions
Industrial
Industrial Chemicals & Speciality Products

Single-use monitoring on each shipment provides acceptance evidence and protects against liability disputes over product degradation in transit.

Used by:
  • Temperature-sensitive industrial chemicals
  • Adhesives and resins
  • Inks
  • Specialty compounds

Neo Penta — your questions answered

What is a single-use temperature indicator?

A single-use temperature indicator is a disposable electronic device that continuously monitors and records temperature conditions throughout a product’s journey, displaying breach alerts via LED indicators that are readable without any equipment.

The Holtronic neo® Penta is a single-use temperature indicator with up to five programmable LED threshold alarms, ±0.5°C accuracy, tamper-proof irreversible breach records and a 2-year shelf life.

Once used, it is not reset or reused — it provides a clean, unambiguous record for one journey only.

Why choose single-use over a reusable temperature indicator?

Single-use indicators are the right choice for one-way supply chains, high-volume deployments and applications where tamper-evident freshness is essential for compliance.

Because each neo® Penta is used only once, there is no carry-over breach data, no reset process to verify and no risk of a compromised device being redeployed. For return-to-base supply chains where the same indicator travels back with packaging, Holtronic’s reusable temperature indicator is more cost-effective.

 

Is a reader device or internet connection needed to use the neo® Penta?

No. The neo® Penta’s complete breach history is communicated entirely through its LED array, which is readable by anyone — warehouse staff, drivers, receiving teams, pharmacists or auditors — without any reader device, smartphone, app or internet connection.

For applications requiring downloadable reports and wireless data transfer, Holtronic’s affordable data logger is the appropriate Holtronic product.

Ready to protect your cold chain with the most precise single-use indicator available?

Request samples of the Neo Penta — in your choice of threshold configuration — and test it in your own supply chain environment. Our UK-based team is available to discuss custom configurations for your specific product and application.

Request a sample
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