Gemini Data Loggers
Gemini Data Loggers, trading as Tinytag, designs and manufactures environmental data loggers (temperature, humidity, CO2, energy) for healthcare, food and beverage, industrial, research, and facilities management customers worldwide, selling through direct channels and a network of 40+ distributors.
- Company typePrivate
- Founded1984
- HeadquartersChichester, United Kingdom
- Headcount11–50
- GTM typeB2B
- OfferingHardware or Manufacturing
What Gemini Data Loggers does
Gemini Data Loggers Ltd, founded in 1984 and headquartered in Chichester, United Kingdom, designs and manufactures environmental monitoring hardware under the Tinytag brand. The company's product portfolio spans USB, Radio wireless, and Ethernet LAN data loggers that measure temperature (from cryogenic -270°C to above 125°C), humidity, CO2, voltage, current, power, and pulse count. Probes utilize thermistor, PT100, PT1000, and thermocouple sensor technologies across indoor, outdoor, underwater, and industrial form factors.
The business operates across four revenue streams: hardware sales (data loggers, probes, accessories), software licensing (Tinytag Explorer, Explorer Connect, and Tinytag DI for data integrity in regulated industries), professional calibration services (UKAS ISO 17025 accredited with 5-day turnaround), and thermal mapping services. Distribution combines direct sales via the UK website and telephone for enterprise customers with a network of over 40 international distributors covering global markets. The customer base is diversified across healthcare and pharmaceutical cold-chain monitoring, food and beverage compliance (BS EN 12830), industrial process control, facilities management, research laboratories, logistics, museums, and agriculture.
Gemini Data Loggers is an independent private limited company with no disclosed external funding, no parent company, and no evidence of acquisitions or divestitures. Ownership remains with founder Neil Vass, who serves as chairman. Operating headcount is reported in the 11-50 range.
Gemini Data Loggers firmographics
Firmographics- Name
- Gemini Data Loggers
- Legal name
- Gemini Data Loggers Ltd
- Website
- https://geminidataloggers.com
- Company type
- Private
- Founded year
- 1984
- Operating status
- Operating
- Headcount range
- 11–50 employees
- Short description
- Gemini Data Loggers, trading as Tinytag, designs and manufactures environmental data loggers (temperature, humidity, CO2, energy) for healthcare, food and beverage, industrial, research, and facilities management customers worldwide, selling through direct channels and a network of 40+ distributors.
- Ownership category
- akta.pro rank
Gemini Data Loggers industry classification
Industry- Product category
- Environmental Data Loggers
- NAICS
- Other Measuring and Controlling Device Manufacturing (334519), Instrument Manufacturing for Measuring and Testing Electricity and Electrical Signals (334515)
- SIC
- Industrial Instruments For Measurement, Display, And Control (3823)
- akta.pro primary industry
- Temperature data loggers & probes (in-transit and storage) (TLAEALAA)
- akta.pro secondary industries
- Cold Chain Monitoring, Sensors & Control Towers (IoT, data loggers) (HLAGAMAG), Cold storage facility environmental sensing (rooms, freezers, blast chillers) (TLAEALAL), Vaccine/biopharma cold chain compliance sensors (GxP/21 CFR Part 11 capable) (TLAEALAK)
Keywords
Where Gemini Data Loggers is headquartered
LocationHeadquarters
- HQ city
- Chichester
- HQ country
- United Kingdom
- HQ region
- Europe
Offices1 record
Markets served
Gemini Data Loggers business model
Business model- GTM type
- B2B
- Offering type
- Hardware or Manufacturing
- Cost components
- Supply Chain, Operations, Personnel, Technology or R&D, Marketing or Sales, Infrastructure
Revenue model
- Hardware Sales - Data Loggers: Sale of environmental data loggers including temperature, humidity, CO2, energy, and other parameter monitoring devices. Products available in USB, Radio wireless, and Ethernet LAN connectivity options.
- Software Licenses: Tinytag Explorer, Tinytag Explorer Connect, and Tinytag DI software for setup, data presentation, and central data management. Software packs and licensing for regulated industries with data integrity features.
- Calibration Services: Calibration services for data loggers including UKAS Calibrations (ISO 17025), traceable to National Standards, with quick 5 working day turnaround.
- Probes and Accessories: Temperature probes including thermistor, PT100, PT1000, and thermocouple types. Also batteries, service kits, offload options, and spare parts.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Other | Multi-year contract | Standard pricing by product model |
Go-to-market motion2 records
Distribution channels3 records
Marketing channels4 records
Gemini Data Loggers product offering
Product offeringCore offering
Gemini Data Loggers designs and manufactures the Tinytag range of environmental data loggers that monitor temperature, humidity, CO2, energy, power, current, voltage, and pulse count parameters, available in USB, Radio wireless, and Ethernet LAN connectivity variants. The company sells supporting Tinytag Explorer software for logger setup and data management, UKAS-accredited calibration services traceable to National Standards, and thermal mapping services for controlled environments. Products are manufactured in the UK and sold direct and through a global distributor network across 40+ countries.
Product overview
Gemini Data Loggers offers a comprehensive portfolio of environmental data logging products under the Tinytag brand, manufactured in the UK. The product line includes multiple data logger families (Ultra 2, Plus 2, View 2, Talk 2, Transit 2, CO2, Energy, Instrumentation, Ultra Radio, Plus LAN, Plus Radio, Aquatic 2, Splash 2, Dry Shipper) that differ by connectivity type (USB, Radio, Ethernet/LAN), environmental rating, and sensor capabilities. The portfolio spans temperature monitoring from cryogenic (-270 degrees C) to very hot (over 125 degrees C), humidity, CO2, power/energy, voltage, current, and pulse counting. Software offerings include Tinytag Explorer (standard setup and data viewing), Tinytag Explorer Connect (centralized management for Radio/LAN systems), and Tinytag DI (data integrity for regulated industries). Supporting services include UKAS-accredited calibration, thermal mapping, and installation/qualification services.
Differentiator
Problem solved
Functional benefit
Brands
- Tinytag: Primary brand name for environmental data loggers including temperature, humidity, CO2, and energy monitoring devices.
- Tinytag Explorer
- Tinytag Explorer Connect
- Tinytag DI
Products and services
- Tinytag Ultra 2
- Tinytag Plus 2
- Tinytag View 2
- Tinytag Talk 2
- Tinytag Transit 2
- Tinytag CO2
- Tinytag Energy
- Tinytag Instrumentation
- Tinytag Ultra Radio
- Tinytag Plus LAN
- Tinytag Plus Radio
- Tinytag Aquatic 2
- Tinytag Splash 2
- Tinytag Dry Shipper
- Tinytag Explorer
- Tinytag Explorer Connect
- Tinytag DI
- Tinytag Calibration Service
- Thermal Mapping Service
- Temperature Probes and Accessories
Companies that use Gemini Data Loggers
Customer profileNamed customers3 records
Segments8 records
Ideal customer profiles4 records
Gemini Data Loggers technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature4 records
Gemini Data Loggers partnerships and signals
Strategic signalPartnerships
Two partnerships are on record, tiered core.
- UKAS Accredited Calibration PartnercoreTrusted partner performing UKAS Calibrations (ISO 17025) for calibration services. Provides traceable calibration certificates to National Standards with quick 5 working day turnaround.
- Global Distributor NetworkcoreNetwork of distributors in over 40 different countries providing local sales, support, and distribution services for Tinytag products globally.
Scale indicators3 records
Expansion highlights5 records
Gemini Data Loggers competitors and assessment
Company assessmentBroad incumbents
- Vaisala: Finnish global leader in environmental and industrial measurement, offering humidity, temperature, CO2 and continuous monitoring systems with a cloud platform (viewLinc). Directly comparable to Gemini's Tinytag portfolio but with much broader product depth and global service.
- Testo: German measurement technology company with a comprehensive range of temperature, humidity and HVAC data loggers plus calibration services. Competes head-to-head with Tinytag in food/pharma cold chain and building monitoring.
- Sensitech (Carrier): Part of Carrier Global, specializing in cold-chain temperature monitoring for food, pharma and vaccine logistics with global services. Overlaps with Tinytag Transit 2 and calibration offerings at much larger scale.
Direct peers
- Onset (HOBO Data Loggers): US-based manufacturer of HOBO data loggers for temperature, humidity, CO2 and energy monitoring with both USB and wireless/Cloud connectivity. Closest direct competitor in form factor and vertical mix to Gemini's Tinytag range.
- ELPRO-BUCHS: Swiss specialist in cold-chain monitoring for pharmaceuticals and life sciences, offering validated data loggers and GxP-compliant software. Highly comparable to Gemini's pharma/biopharma cold-chain use cases.
- Rotronic (Process Sensing Technologies): Swiss humidity and temperature measurement specialist with data loggers, probes and calibration services. Comparable product technology, accuracy focus and regulated-industry positioning to Gemini.
- Lascar Electronics: UK-based competitor manufacturing USB, Wi-Fi and cloud-connected EasyLog data loggers for temperature, humidity and voltage. Direct competitor to Tinytag, especially in SMB and education segments.
- MadgeTech: US manufacturer of data loggers and validation/calibration systems for pharma, food and industrial applications, with a focus on CFR Part 21 compliant software. Comparable to Gemini's GxP-oriented Tinytag DI offering.
- Berlinger: Swiss manufacturer of temperature monitoring solutions for pharma cold chain, including vaccine vial monitors and Q-tag loggers used in WHO immunization programs. Directly comparable in regulated pharma/vaccine logistics.
Emerging players
- LogTag Recorders: New Zealand-based specialist in compact temperature data loggers for cold chain and food safety with USB and Wi-Fi interfaces. Competes with Tinytag Transit 2 in transport/storage temperature monitoring at the lower-mid market.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat5 records
Key risks6 records
Key highlights6 records
Customer concentration
Gemini Data Loggers social profiles
Digital presenceGemini Data Loggers compliance and trust
Trust signalCompliance2 records
Gemini Data Loggers financial estimates
Financial estimateRevenue estimate
Valuation estimate
Gemini Data Loggers leadership team
Management profileNumber of profiles
Profiles1 record
Gemini Data Loggers funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Gemini Data Loggers M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Gemini Data Loggers
What does Gemini Data Loggers do?
Gemini Data Loggers designs and manufactures the Tinytag range of environmental data loggers that monitor temperature, humidity, CO2, energy, power, current, voltage, and pulse count parameters, available in USB, Radio wireless, and Ethernet LAN connectivity variants. The company sells supporting Tinytag Explorer software for logger setup and data management, UKAS-accredited calibration services traceable to National Standards, and thermal mapping services for controlled environments. Products are manufactured in the UK and sold direct and through a global distributor network across 40+ countries.
Is Gemini Data Loggers a public or private company?
Gemini Data Loggers is a private company. It is classified as founder individual operated bootstrapped and is currently operating.
When was Gemini Data Loggers founded?
Gemini Data Loggers was founded in 1984. It employs 11 to 50 people.
Where is Gemini Data Loggers based?
Gemini Data Loggers is headquartered in Chichester, United Kingdom, in the Europe region.
How does Gemini Data Loggers make money?
Four revenue lines are on record. Hardware Sales - Data Loggers are the primary driver. The others are software Licenses, calibration Services and probes and Accessories.
Who are Gemini Data Loggers's main competitors?
Broad incumbents on record are Vaisala, Testo and Sensitech (Carrier). Direct peers are Onset (HOBO Data Loggers), ELPRO-BUCHS, Rotronic (Process Sensing Technologies), Lascar Electronics, MadgeTech and Berlinger. LogTag Recorders is listed as an emerging player.
Does Gemini Data Loggers have an API?
No public API is recorded for Gemini Data Loggers.
What industry is Gemini Data Loggers in?
Gemini Data Loggers's product category is Environmental Data Loggers. Its primary akta.pro industry code is TLAEALAA, Temperature data loggers & probes (in-transit and storage), with a secondary code of HLAGAMAG, Cold Chain Monitoring, Sensors & Control Towers (IoT, data loggers). Its NAICS code is 334519 and its SIC code is 3823.