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Hi there, I'm Jarvis! I see you're looking at the Audible and Visual Alert Speaker | Commercial Kitchen Timer | Digital Display with Alarm | Comark CR439. How can I help you with the technical specs or suitability for your business today?

Jarvis is an AI assistant and may occasionally provide incorrect details. To ensure your equipment fits and functions perfectly, we recommend verifying all critical specifications-including dimensions, power requirements, and compatibility-with our expert sales team prior to purchase.For orders or stock, call 0333 355 0535

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Comark In Stock

Audible and Visual Alert Speaker | Commercial Kitchen Timer | Digital Display with Alarm | Comark CR439

SKU: CR439
£303.78 / exc vat
£364.54/ inc vat
  • Mains Powered with Battery Backup
  • Nine Selectable Alarm Sounds
  • Flashing Visual LED Alerts
  • WiFi Connectivity

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Features Overview Specifications Case Study Reviews Installation Buying Guide FAQ

Product Overview

Here’s a smart bit of kit for any kitchen that takes food safety and  precision seriously. The Comark CR439 isn't just a timer; it's a central alert system designed to be the eyes and  ears of your operation when you can't be everywhere at once. It connects wirelessly to your Comark Diligence Data Loggers, giving you instant, unmissable warnings for everything from fridge temperatures to cooking cycles, all in one place.

This is for the professional setup—the bustling restaurant, the busy catering company, or the artisan bakery where consistency and  compliance are non-negotiable. If you're juggling multiple tasks and  need a reliable way to monitor critical points in your kitchen, this is your answer. It cuts through the noise and  chaos of a busy service with both loud alarms and  bright, flashing lights, ensuring no critical alert is ever missed.

With its choice of nine alarm sounds, mains power with battery backup, and  simple wall mounting, this commercial kitchen timer with alarm is built for the real world of professional cooking. Stop worrying about missed timers and  temperature drops; let the Comark CR439 give you the peace of mind to focus on what you do best: creating fantastic food.

Key Features and  Benefits

  • Mains Powered with Battery Backup: Never miss an alert, even during a power cut.
  • Nine Selectable Alarm Sounds: Customise alerts to cut through the kitchen noise easily.
  • Flashing Visual LED Alerts: Grabs attention instantly, perfect for noisy service environments.
  • WiFi Connectivity: Links to data loggers for a complete monitoring system.
  • Compact & Lightweight Design: Fits anywhere without taking up precious counter or wall space.
  • Versatile Mounting Options: Install easily with the included bracket, screws, or pad.
  • Durable Plastic Casing: Built to withstand the daily knocks of a commercial kitchen.
  • Multi-Logger Compatibility: Connects to multiple loggers for total kitchen-wide oversight.

Technical Specifications

  • Brand: Comark
  • SKU: CR439
  • Dimensions: 97(H) x 71(W) x 26(D) mm
  • Weight: 0.4kg
  • Material: Durable Plastic
  • Power: Mains powered with lithium battery backup
  • Connectivity: WiFi (Connects to multiple Diligence WiFi Data Loggers)
  • Alarm Type: 9 selectable audible sounds and  flashing red visual LEDs
  • Compatibility: Works with Comark models CR438, CR437, CR436, and  CR435

Expert Review and  Insights

In today's kitchen, compliance is as important as the cooking itself. The Comark CR439 moves beyond a simple 'ping' to become a central hub for food safety alerts. It brilliantly links up with temperature loggers, turning abstract data into an immediate, physical warning. It’s less of a kitchen gadget and  more of an essential part of your HACCP toolkit, providing an audible and  visual safety net.

Oliver Bennett – Catering Equipment View Profile →

  • Unmissable Alerts: The combination of piercing sound and  bright flashing lights is truly foolproof.
  • System Dependent: To unlock its full potential, you need existing Comark WiFi data loggers.

Case Study: Real Business, Real Results

The Rutland Pie Co. in Oakham needed a more robust way to monitor their walk-in chiller and  meat fridges overnight. Manual checks were time-consuming and  left room for error, posing a risk to their high-quality stock.

"We used to worry constantly about equipment failure after hours. The Comark system gives us a loud, clear alert the second a temperature strays. It's let us sleep easier at night, knowing our stock is protected."

Michael Davies – Owner

The bakery has eliminated all stock loss due to fridge temperature fluctuations since installation, protecting their bottom line.

Installation and  Maintenance Guide

Setting It Up

  • Find a central location where the alarm will be easily seen and  heard by staff.
  • Use the included wall bracket and  screws for the most secure fit, or the sticky pad for a non-permanent option.
  • Plug the unit into a reliable mains socket to ensure it's always powered.
  • Follow the simple instructions to connect the unit to your kitchen's WiFi network and  sync it with your Comark data loggers.

Keeping It Going

  • Wipe the plastic casing with a soft, damp cloth. Avoid using harsh sprays or abrasive cleaners.
  • Perform a weekly test of the alarm function to ensure it's working correctly.
  • Check that the vents on the unit are clear of dust or kitchen grease to prevent overheating.
  • Ensure the mains plug is secure and  the battery backup is functional, especially after a power outage.

Buying Guide: Choosing the Right Kitchen Timer

Need help choosing? Let's break down what to look for in a professional timer or alert system.

Audibility is Key

Can you hear it over a noisy extractor fan and  the general clatter of service? Look for adjustable volumes or multiple sound options.

Visual Cues

In a loud kitchen, a flashing light can be more effective than a sound. It's also essential for staff who may be hard of hearing.

Smart Connectivity

Does it need to work with other equipment? A system that links to temperature probes provides a complete safety net, not just a timer.

Built to Last

A domestic timer won't survive long. Look for durable, wipe-clean materials that can handle the heat, steam, and  knocks of a pro kitchen.

Reliable Power

Is battery-only a risk? For critical alerts, mains power with a battery backup is the professional standard, ensuring you're never left in the dark.

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Frequently Asked Questions

Q: How is this alarm unit powered?

A: It runs on mains power for constant reliability and  includes an internal lithium battery as a backup in case of a power failure.

Q: Can I change the alarm sound?

A: Yes, you can Select from nine different standard alarm sounds to find one that cuts through the specific noise of your kitchen.

Q: What does the visual alert look like?

A: Bright red LEDs flash through the translucent red rear moulding, creating a highly visible warning that's hard to miss.

Q: How do I mount it on the wall?

A: It’s very flexible. It comes with a dedicated bracket and  screws, or a strong self-adhesive pad for easy mounting on any clean, vertical surface.

Q: Is this a standalone timer, or do I need other equipment?

A: This is an alarm unit designed to work with Comark's Diligence WiFi Data Loggers. It receives signals from them to alert you to issues like temperature changes.

Q: How many data loggers can it connect to at once?

A: It is designed to connect to multiple data loggers simultaneously, allowing you to monitor several areas of your kitchen from one central alarm point.

Q: Is the plastic casing easy to keep clean?

A: Absolutely. The smooth plastic casing is designed to be wiped clean easily with a damp cloth.

Q: Which specific Comark loggers does this work with?

A: This audible and  visual alert timer is compatible with Comark Diligence logger models CR438, CR437, CR436, and  CR435.

What Customers Are Saying

"An absolute must-have for our HACCP plan. The visual alarm is brilliant for when the extractors are on full blast."

David L. – Catering Manager, Manchester

"Works perfectly with our other Comark loggers. Took just a few minutes to link everything up on the WiFi."

Chloe T. – Bistro Owner, York

"So much more effective than a standard digital kitchen timer. It's loud, clear, and  the flashing light is impossible to ignore."

Raj Singh – Takeaway Owner, London

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The Comark Advantage: Beyond Timers to Total Assurance

Choosing Comark isn't just about buying a piece of hardware; it's an investment in precision and  reliability. With a long-standing reputation in the food safety and  monitoring industry, Comark equipment is trusted by professionals who can't afford to compromise. This CR439 alarm unit embodies that trust. It’s a crucial component in building an automated, reliable safety net for your entire operation. By taking the guesswork and  human error out of critical temperature and  time monitoring, it directly contributes to your HACCP compliance and  significantly reduces the risk of costly stock spoilage. Over its lifespan, the peace of mind and  protection it offers far outweighs its cost, freeing up your team to focus on quality and  service, not constant manual checks.

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How WiFi Connectivity Creates a Smarter Kitchen

So, what does 'connects to WiFi data loggers' actually mean for you? Think of this alarm unit as your kitchen's loyal watchdog. The data loggers (sold separately) are like little spies you place in your fridges, freezers, or hot holds. They constantly monitor the temperature.

If a fridge door is accidentally left ajar and  the temperature starts to climb into the danger zone, the logger instantly sends a wireless signal to the CR439 alarm unit. That's when this unit springs to life, sounding a loud alarm and  flashing its bright red lights. It's the difference between discovering ruined stock in the morning and  catching the problem in seconds. It automates your food safety checks, turning a manual task into an instant, reliable alert system.

Who Should Buy This?

  • Restaurants: For monitoring walk-in freezers and  coordinating complex cooking times during a hectic service.
  • Busy Cafés: To ensure milk fridges and  pastry display chillers stay at the perfect, safe temperature.
  • Ghost Kitchens: To maintain strict, auditable food safety logs and  timings for multiple online brands.
  • Bakeries: For keeping an eye on proofing timings and  critical oven alerts in a busy environment.
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Get total peace of mind and  precision in your kitchen—add the Comark CR439 commercial kitchen timer with alarm to your basket today for a safer, smarter operation.

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