Comark Instruments vs Kelsius
Comark Instruments makes hand-held and pocket food thermometers, probes, data loggers and wireless monitoring systems for measuring and recording temperature and humidity. Kelsius sells wireless temperature monitoring and digital HACCP systems for food businesses and life-science organisations. Both are listed under Temperature Monitoring & Sensors. The main differences are in audience, platforms and security and compliance.
Key differences
audience
Not every audience is shared. Entries that only one product lists: Comark Instruments: Restaurants, caterers and food retailers; Kelsius: Hospitality and catering kitchens.
platforms
Listed platforms: Comark Instruments: Web, Windows; Kelsius: Web, iOS, Android.
security and compliance
Listed security and compliance items: Comark Instruments: ISO 9001; Kelsius: ISO 14001, ISO 27001, ISO 9001.
company background
Founding years: Comark Instruments, 1961; Kelsius, 2000. By headquarters, Comark Instruments (Norwich, United Kingdom) and Kelsius (Falcarragh, Co. Donegal, Ireland).
Side by side
| Field | Comark Instruments | Kelsius |
|---|---|---|
| What it is | Comark Instruments makes hand-held and pocket food thermometers, probes, data loggers and wireless monitoring systems for measuring and recording temperature and humidity. | Kelsius sells wireless temperature monitoring and digital HACCP systems for food businesses and life-science organisations. |
| Best for | Restaurants, caterers and food retailers; Food processors and BRC/HACCP-audited sites | Hospitality and catering kitchens; Quick service restaurant chains; Butchers and food retail; Food in transit, wholesale and logistics |
| Pricing model | Quote only | Quote only |
| Starting price | Not published | Not published |
| Free plan | Not published | Not published |
| Free trial | Not published | Not published |
| Contract | Not published | Not published |
| Platforms | Web, Windows | Web, iOS, Android |
| Countries | Not published | Ireland, United Arab Emirates, United Kingdom |
| Languages | Not published | Not published |
| Number of integrations | Not published | Not published |
| Certifications | ISO 9001 | ISO 14001, ISO 27001, ISO 9001 |
| Security practices | UKAS accredited calibration laboratory | Encrypted sensor data and app two-factor authentication, Systems comply with FDA 21 CFR Part 11 |
| Founded | 1961 | 2000 |
| Headquarters | Norwich, United Kingdom | Falcarragh, Co. Donegal, Ireland |
| Owner | Fluke (a wholly owned subsidiary of Fortive Corporation); Comark became a Fluke company in 2006 | Not published |
| Last reviewed | 29 September 2026 | 29 September 2026 |
Which to choose
Comark Instruments
Choose Comark Instruments if you fit its listed audience: Restaurants, caterers and food retailers; Food processors and BRC/HACCP-audited sites.
Kelsius
Choose Kelsius if you are in one of these groups: Hospitality and catering kitchens; Quick service restaurant chains; Butchers and food retail.
What we could not confirm
Comark Instruments
- Any prices
- Whether the Comark Cloud App runs on iOS and Android
- Countries served
- Cloud subscription terms, security certifications for the cloud service
- Employee count
- Named customers
Kelsius
- Any price or plan structure (quote only)
- Contract length and renewal terms (only a warranty tied to the agreement term is stated)
- Third-party software integrations (none named)
- Full list of countries served (vendor says over 50 without naming them)
- Interface languages
- Employee count and funding
- Founders (leadership named, founders not stated)
Go further
Sources
Facts on this page come from the pages below. Prices and features change, so confirm with each vendor before you buy.
Comark Instruments, reviewed 29 September 2026
- Home page and product rangehttps://www.comarkinstruments.net
- Food service fit and monitoring optionshttps://www.comarkinstruments.net/food/food-catering-retail-service/
- BRC/HACCP positioninghttps://www.comarkinstruments.net/food/brchaccp-2/
- Software, Comark Cloud, logger systemshttps://www.comarkinstruments.net/software/
- Hand-held thermometer specshttps://www.comarkinstruments.net/product-category/products/food-thermometers/hand-held-food-thermometers/
- Calibration servicehttps://www.comarkinstruments.net/support/services/ukas-calibration-service/
- History, ISO 9001, Fluke ownershiphttps://www.comarkinstruments.net/about-us/
- Head office, sales and support routeshttps://www.comarkinstruments.net/support/general-support/contact-us/
Kelsius, reviewed 29 September 2026
- Homepage and product navigationhttps://kelsius.com
- FoodCheck 2.0 product, equipment, customershttps://kelsius.com/foodcheck-2/
- FoodCheck2Go hardwarehttps://kelsius.com/foodcheck2go/
- Food in transit producthttps://kelsius.com/foodtrak365/
- CoolCheck for life sciences and wholesalehttps://kelsius.com/coolcheck/
- Hospitality fit, 30 minute readingshttps://kelsius.com/hospitality-catering/
- QSR fit, alert channels, probeshttps://kelsius.com/quick-service-restaurants/
- Reportinghttps://kelsius.com/solutions/reporting-suite/
- Traceabilityhttps://kelsius.com/solutions/traceability/
- Shelf-lifehttps://kelsius.com/solutions/shelf-life-management/
- App alerts, iOS and Androidhttps://kelsius.com/push-notification-alerts/
- Allergen apphttps://kelsius.com/allergen-app/
- Temperature mapping servicehttps://kelsius.com/temperature-mapping/
- Customisationhttps://kelsius.com/solutions/customisation/
- Support hourshttps://kelsius.com/solutions/services/customer-support/
- Warranty termshttps://kelsius.com/solutions/services/lifetime-warranty/
- Founding year, certifications, export reachhttps://kelsius.com/about/
- Leadershiphttps://kelsius.com/our-people/
- Offices, quote and demo optionshttps://kelsius.com/contact/
- Legal entity and registered officehttps://kelsius.com/company-registration/