Best Circular Temperature Chart Recorders for Accurate Monitoring
Looking for a reliable circular temperature chart recorder that keeps precise logs for refrigerators, freezers, and ambient environments? This guide highlights five top options, explaining who each product is best for and why it stands out. Whether you manage a professional kitchen, a cold storage facility, or a lab, these recorders help ensure compliance and traceability with clear, readable charts and straightforward setup.
The table below compares key points to help you decide quickly:
| Product | Best For | Chart Diameter | Voltage | |
|---|---|---|---|---|
| Supco CR87B Temperature Monitor | Commercial kitchens and cold storage | 6″ | 110-120V | Precision monitoring with a 6″ chart |
| Supco CR87J Fahrenheit Type J | Remote readings and Type J compatibility | 6″ | 110-120V | Wide temp range for J-type thermocouples |
| Dickson SL4350 | Digital display lovers and flexible rotation | 4″ | — | 7-day or 24-hour rotation |
| Supco CR87BC Celsius | Easy-to-read Celsius monitoring | 6″ | 110-120V | Front-panel controls; large LED display |
| DeltaTrak 16100 (20 Pack) | Bulk pallet monitoring | 4″ | — | Simple peel-and-stick placement |
Supco CR87B Temperature Monitor

The Supco CR87B is a circular chart temperature monitor designed for refrigerators, freezers, and ambient environments. It includes a 6″ chart and a 6′ stainless steel tip probe for precise, traceable readings. This model emphasizes reliability in data logging, making it suitable for quality assurance and regulatory compliance in food storage and cold-chain settings.
Best for: Commercial kitchens and cold storage facilities needing stable, continuous monitoring. Its 6″ chart provides clear historical data suitable for trend reporting. Caution: setup and interpretation rely on the chart format; digital history must be maintained alongside to ensure full traceability.
Supco CR87J Fahrenheit Type J Thermocouple

This model uses a Type J thermocouple and offers a temperature range from -40°F to 120°F (-40°C to 50°C) with remote readings. The flexible input makes it suitable for environments where you need extended range monitoring away from the main unit. It is a solid choice when a remote sensing capability is important for your process.
Best for: Applications that require remote sensing and a wider, low-to-mid temperature range. Choose this if you need to position probes away from the recorder. Limitation: not a standalone digital display device; rely on remote readings to interpret data alongside the chart.
Dickson SL4350 Temperature Chart Recorder

The Dickson SL4350 features a digital display and offers 7-day or 24-hour rotation with a 4″ chart. It supports Celsius or Fahrenheit switching, giving flexibility for different regional standards and user preferences. The device blends classic chart recording with modern digital visibility for quick checks.
Best for: Workflows that prioritize a compact, 4″ chart with a digital display and flexible rotation options. Limitation: smaller chart area compared with 6″ options, which may limit long-term trend visibility on a single chart.
Supco CR87BC Celsius Temperature Recorder

The CR87BC Celsius model provides advanced microcontroller-based reliability with a large LED digital display for easy reading. Front-panel controls enable fast setup, and the 6″ chart maintains consistent monitoring in Celsius. This device targets users who prefer straightforward operation and legible real-time readouts.
Best for: Facilities prioritizing Celsius readings with clear, quick visibility and simplified setup. Caution: ensure the front-panel controls are familiar to staff to maximize efficiency and reduce setup time.
Supco CR87B220C Celsius High-Temp Recorder

The CR87B220C is a Celsius circular chart recorder designed for higher temperature environments. It retains the 6″ chart diameter and front-panel accessibility, with a focus on reliability across a broader Celsius temperature spectrum. It suits facilities requiring precise Celsius monitoring at elevated temperatures.
Best for: High-temperature Celsius monitoring in industrial or food storage settings. Limitation: data presentation remains chart-based, so digital data export methods should be considered if you need rapid analytics.
DeltaTrak 20 Pack 10-Day Temperature Chart Recorder

The DeltaTrak Model 16100 is a cost-effective 10-day in-transit chart recorder sold in bulk. It features a simple peel-and-stick pallet placement and a readable Fahrenheit and Celsius chart range from -20°F to 100°F (-29°C to 38°C). It’s designed for quick, temporary monitoring during distribution and transport.
Best for: Bulk shipments or pallet-level temperature checks where quick deployment and readability are required. Caution: not meant for long-term storage monitoring; intended for transit windows rather than continuous facility use.
Buying Guide: Key Considerations for Circular Temperature Chart Recorders
What chart diameter do you need? A 4″ chart is compact and suitable for space-limited setups, while a 6″ chart offers longer trend visibility. Consider your reporting needs and whether you require a digital display for quick reads or a purely chart-based log for compliance.
Do you need Celsius or Fahrenheit? Some models offer both or switchable displays, which is important for facilities operating across regional standards. If you require remote sensing, select a model with a Type J thermocouple or compatible input for remote readings.
What about setup and maintenance? Front-panel controls and LED displays simplify configuration and ongoing checks. Ensure the unit’s power requirements (voltage) fit your electrical system and that the data logger or chart remains legible under your storage conditions.
How will you use the data? If you need robust data for QA reports, pick a model with reliable data logging and clear trend charts. For transit monitoring, a simple peel-and-stick option with a clear Fahrenheit/Celsius scale may suffice.
What about durability and placement? Stainless steel probes and rugged housings help in cold storage and high-traffic environments. Assess whether probes are retrievable for recalibration or replacement and whether front-panel access is convenient for your staff.
FAQ
- What is a circular temperature chart recorder? A device that logs temperature data on a rotating circular chart, providing a visual history of temperature over time.
- Why choose a 6″ chart diameter? A 6″ chart offers more data space for longer monitoring periods and clearer trend viewing compared with smaller charts.
- Are these recorders suitable for both Celsius and Fahrenheit? Many models support one or both scales, with switchable displays in some cases.
- Which model is best for remote readings? Models with Type J thermocouples and remote sensing capabilities are better suited for remote temperature monitoring.
- Can these recorders be used for in-transit monitoring? Some options, like DeltaTrak’s pack, are designed for pallet and transport monitoring, while others are optimized for fixed installations.
- Do these devices require extensive maintenance? Most offer straightforward front-panel controls and digital displays for easy setup and ongoing checks; however, chart replacement and calibration intervals may vary by model.