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Jarvis

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Hi there, I'm Jarvis! I see you're looking at the Digital Fridge Freezer Thermometer | Temperature Monitor | -40°C to +50°C Range | Hygiplas F343. 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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Hygiplas In Stock

Digital Fridge Freezer Thermometer | Temperature Monitor | -40°C to +50°C Range | Hygiplas F343

SKU: F343
£14.26 / exc vat
£17.11/ inc vat
  • External Probe
  • Programmable Alarm
  • Large Digital Display
  • Dual Temperature Reading

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Features Overview Specifications Case Study Reviews Installation Buying Guide FAQ

Product Overview

Keeping a close eye on your cold storage is one of the most important jobs in any kitchen, and  this nifty bit of kit makes it an absolute breeze. This is a dedicated, reliable digital fridge freezer thermometer designed to give you an accurate, at-a-glance temperature reading without you ever having to open the appliance door. It’s your first line of defence in the battle for food safety, helping you protect your stock and  your reputation.

It’s tailor-made for busy professional environments like restaurants, cafés, pubs, and  mobile catering vans. Basically, if you store chilled or frozen food, this is for you. With its long 3-metre probe cable, a large, easy-to-read display, and  a programmable high/low temperature alarm, it gives you all the essential information you need, exactly when you need it. The dual display even shows you the room temperature alongside the probe's reading.

Stop guessing and  start knowing. The Hygiplas F343 thermometer is a simple, cost-effective tool that works around the clock to prevent costly spoilage and  ensure you're always on top of your HACCP compliance. It's the small investment that protects your much bigger ones.

Key Features and  Benefits

  • External Probe: Keep the door shut, saving energy and  maintaining temperature.
  • Programmable Alarm: Get an instant audio alert if temperatures go out of range.
  • Large Digital Display: Read temperatures clearly from anywhere in a busy kitchen.
  • Dual Temperature Reading: See both internal appliance and  ambient room temperatures at once.
  • Flexible Mounting: Use the built-in stand or magnets to position it perfectly.
  • Long 3m Cable: Gives you plenty of length to place the probe optimally.
  • °C/°F Switchable: Work in the temperature unit you are most comfortable with.
  • Battery Powered: No need for a nearby plug socket or messy wires.

Technical Specifications

  • Brand: Hygiplas
  • SKU: F343
  • Temperature Range: -50°C to +70°C
  • Dimensions: 52(H) x 73(W) x 15(D) mm
  • Weight: 90g
  • Probe Cable Length: 3m
  • Material: Plastic
  • Colour: White
  • Power: 1 x AAA Battery (included)
  • Features: High/Low Temperature Alarm, °C/°F Switchable, Dual Display

Expert Review and  Insights

In food safety, guesswork is your worst enemy. The Hygiplas F343 is a simple, no-nonsense bit of kit that does one job and  does it exceptionally well. It delivers the critical data you need to prevent stock loss and  stay compliant, without any unnecessary bells and  whistles. It's a must-have for any kitchen serious about its cold chain management.

Daniel Foster – Maintenance Expert View Profile →

  • Pro: The audible alarm is surprisingly loud, easily cutting through typical kitchen noise.
  • Con: The included sucker cup can struggle on some freezer walls; use the tape.

Case Study: Real Business, Real Results

The team at 'The Northern Pie Co.' in Leeds needed a more dependable way to monitor their meat and  dairy fridges after a faulty thermostat led to a significant loss of expensive stock overnight.

"We were just spot-checking with a probe a few times a day, which is never ideal. This little thermometer gives us constant peace of mind. The alarm has already saved a whole batch of butter when a fridge door was left slightly ajar after a deep clean. It’s absolutely brilliant."

Robert Green – Owner

This simple addition has reduced manual temperature check times by 10 minutes per day and  provides a constant, reliable record for their HACCP plan.

Installation and  Maintenance Guide

Setting It Up

  • Pop in the included AAA battery into the compartment on the back.
  • Place the main display unit where it's easy to see, using the flip-out stand for a shelf or the magnets for a metal surface.
  • Run the 3m probe cable into your fridge or freezer, using the sucker cup or double-sided tape to fix the sensor tip in place.
  • Press and  hold the 'SET' button, then use the up/down arrows to program your desired high and  low temperature alarm limits.

Keeping It Going

  • Wipe the plastic casing and  probe cable with a damp, soapy cloth as needed. Never submerge the main unit in water.
  • Keep an eye on the battery level and  replace the AAA battery when it gets low to ensure continuous monitoring.
  • Every so often, check that the probe's sucker cup or sticky pad is still firmly attached inside your appliance.
  • Regularly test the alarm function to ensure it's still audible in your working environment.

Buying Guide: Choosing the Right Thermometer

Not quite sure what you need? Keeping food safe is all about accurate temperatures. Here are a few things to consider when choosing a catering fridge freezer thermometer.

Probe & Cable

Consider where your fridge is versus where you want the display. A longer cable, like the 3m one on this model, offers much more placement flexibility.

Audible Alarms

For critical storage, an audible alarm is non-negotiable. It's your 24/7 safety net against equipment failure, power cuts, or simple human error.

Display Clarity

In a hectic kitchen, you need to see the temperature at a glance. A large, clear digital display is far superior to a small, hard-to-read dial.

HACCP Compliance

Does the thermometer help with your food safety plan? A reliable digital monitor provides the accurate readings you need for your daily logs.

Placement Options

Look for units with magnets or stands. This lets you position the display on a shelf, or stick it directly onto a metal surface without drilling holes.

See all Fridge & Freezer Thermometers

Frequently Asked Questions

Q: Can I use this in a chest freezer as well as an upright fridge?

A: Absolutely. Its wide temperature range of -50°C to +70°C makes it perfect for monitoring all types of commercial fridges and  freezers.

Q: How long is the probe cable?

A: The cable is a generous 3 metres long, giving you plenty of flexibility to position the probe and  the main unit conveniently.

Q: Is it difficult to set the temperature alarm?

A: Not at all. You just press and  hold the 'SET' button and  use the simple up and  down buttons to define your high and  low temperature limits.

Q: How is the main unit powered?

A: It's powered by a single AAA battery, which is included in the box to get you started straight away.

Q: Can I switch the display from Celsius to Fahrenheit?

A: Yes, there's a simple button on the unit that lets you toggle between °C and  °F displays instantly.

Q: What do the two temperatures on the screen mean?

A: The larger reading is the temperature from the external probe (inside your fridge/freezer), and  the smaller reading is the ambient temperature of the room where the main unit is located.

Q: How does the probe attach inside the fridge?

A: It comes with both a sucker cup and  a piece of double-sided sticky tape, so you can choose the best method for your appliance's interior surface.

Q: Is the unit waterproof?

A: The unit is designed to be splash-resistant for easy cleaning but it is not fully waterproof. It should not be submerged in water.

What Customers Are Saying

"Does exactly what it says on the tin. The long cable is really useful and  the display is a doddle to read. Great value for the price."

David Chen – Takeaway Owner, Manchester

"A fantastic commercial fridge freezer thermometer. The alarm is a great feature that's already come in handy. My only minor niggle is that the sucker cup for the probe sometimes loses its grip in our deep freezer."

Chloe Jenkins – Café Manager, Cardiff

"Bought three of these for our kitchen. They're essential for our food safety records. So simple to set up and  the batteries last for ages."

Tom Williams – Pub Landlord, York

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The Hygiplas Promise: Simplicity and  Reliability

When you choose a Hygiplas product, you're not just buying a piece of equipment; you're investing in peace of mind. For caterers, food safety isn't a buzzword—it's the foundation of your business. The Hygiplas F343 thermometer embodies this principle. It's designed without confusing extras, focusing purely on accurate, reliable temperature monitoring. This simplicity translates to real-world value: less time spent on training staff, fewer errors in your HACCP logs, and  a dramatic reduction in the risk of stock spoilage. Built from durable plastic to withstand the bumps and  knocks of a professional kitchen, it's a small, cost-effective tool that provides an enormous return by safeguarding your most valuable assets: your ingredients and  your reputation.

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How the External Probe & Alarm Protect Your Stock

Ever worried if your fridge is *really* holding its temperature overnight or during a power cut? The external probe on this digital temperature monitor for refrigerators is the key. Think of it like a tiny, dedicated watchdog sitting inside your fridge, constantly reporting back. The main unit stays outside, so you don't have to keep opening the door—letting warm air rush in—just to check the temperature. The real magic, though, is the programmable alarm. You tell it the safe temperature range for your food, and  if it ever goes above or below that point, it’ll beep to let you know immediately. It’s the difference between noticing a slightly ajar door and  discovering a fridge full of spoiled produce the next morning.

Who Should Buy This?

  • Restaurants & Pubs: To ensure walk-in fridges and  under-counter freezers are consistently holding temperature during busy services.
  • Cafés & Bakeries: Essential for monitoring milk fridges and  display cabinets holding cream cakes and  other perishables.
  • Mobile Caterers & Food Stalls: Perfect for keeping an eye on portable refrigeration units and  ensuring food safety on the go.
  • Butchers & Farm Shops: A cost-effective way to monitor deli counters and  stock fridges, preventing costly spoilage of prime produce.
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