Welcome to Test4Less

FREE SHIPPING

For all orders over £100

CHAT | EMAIL | PHONE

Professional support

FREE GIFTS

On many products

CUSTOMER REWARDS

Enjoy Exclusive Benefits

BOOK YOUR TRAINING

Elevate Your Skills

Testo 300+ Flue Gas Analyser Standard Kit

 
  • CO sensor measures up to 8,000 ppm with H₂ compensation
  • 5-inch touchscreen with smart Bluetooth connectivity
  • Parallel measurements with Testo Smart Probes
  • 10-hour battery life and 5-year sensor lifespan
Free Shipping

Spend over £100 on any new goods order and receive automatic free shipping

Rewards

Points make purchases! For every £1 spent, earn back 1p that can be spent on any future new goods purchase

Our Price Promise

We offer a Price Match Promise! Find an equivalent tester for a cheaper price on a competitor site, and we’ll do our best to match it

Express Delivery & Calibration

Express Delivery is currently unavailable for customers wishing to add calibration to their New Goods order. For more information, visit our Delivery Information page. 

£758.00 (ex VAT)

£909.60 (inc VAT)

Earn 758 points

Usually Ships In 3 to 5 Business Days
FREE Testo Work Light PLUS a Socket & See VVD Pro!
Testo 300+ Flue Gas Analyser Standard Kit

The Testo 300+ Flue Gas Analyser Standard Kit is built to meet the needs of domestic gas and oil boiler professionals. With its advanced CO sensor measuring up to 8,000 ppm and H₂ compensation, this analyser offers precision, reliability, and durability for a wide range of essential measurements. The five-year lifespan of the sensors reduces service costs, while its intelligent design ensures ease of use and enhanced performance on every job.

Featuring an easy-to-use 5-inch colour touchscreen, the Testo 300+ Standard Kit allows for quick, accurate readings and visualisations. The analyser can measure oxygen, carbon monoxide, draught, pressure, and temperature with impressive precision. It also calculates key combustion parameters, such as CO₂ levels, efficiency (ETA), and flue gas losses. Additionally, its innovative second-screen function, when paired with the Testo Smart App, ensures measurements can be viewed remotely, maximising convenience.

Advanced Connectivity and Smart Features

The Testo 300+ uses Bluetooth connectivity and the Testo Bluetooth Connector to measure up to four parameters simultaneously. Users can integrate Testo Smart Probes to expand its capabilities for flow, return, and differential temperature measurements. It generates instant reports and shares data wirelessly via WLAN, automating tasks and boosting productivity.

Designed for durability, the Testo 300+ Standard Kit built to endure stressful conditions thanks to its scratch-resistant touchscreen with a protective film. The soft instrument carry case and robust probe make this kit ideal for professionals who require reliability on-site.

With a ten-hour battery life, IP40-rated protection, and compliance with EN50379-1/3 and BS7967 standards, the Testo 300+ Standard Kit offers the performance and peace of mind essential for today’s heating engineers.

Key Features
  • Measures oxygen, carbon monoxide, draught, pressure, and temperature
  • CO sensor measures up to 8,000 ppm with H₂ compensation for accuracy
  • 5-year sensor lifespan reduces service and ownership costs
  • Large, 5-inch colour touchscreen for intuitive operation
  • Calculates CO₂, combustion efficiency (ETA), and flue gas loss
  • Scratch-resistant touchscreen with protective film
  • Bluetooth connectivity allows parallel measurement of up to 4 smart probes
  • Second-screen function enables remote monitoring via Testo Smart App
  • Includes Testo Bluetooth Connector for improved versatility
  • Complies with EN50379-1/3 and BS7967 standards for reliability
  • WLAN connectivity for instant reporting and data integration
  • Ten-hour battery life with a rechargeable power supply
Testo 300+ Flue Gas Analyser Standard Kit

The Testo 300+ Flue Gas Analyser Standard Kit is built to meet the needs of domestic gas and oil boiler professionals. With its advanced CO sensor measuring up to 8,000 ppm and H₂ compensation, this analyser offers precision, reliability, and durability for a wide range of essential measurements. The five-year lifespan of the sensors reduces service costs, while its intelligent design ensures ease of use and enhanced performance on every job.

Featuring an intuitive 5-inch colour touchscreen, the Testo 300+ allows for quick, accurate readings and visualisations. The analyser can measure oxygen, carbon monoxide, draught, pressure, and temperature with impressive precision. It also calculates key combustion parameters, such as CO₂ levels, efficiency (ETA), and flue gas losses. Additionally, its innovative second-screen function, when paired with the Testo Smart App, ensures measurements can be viewed remotely, maximising convenience.

Advanced Connectivity and Smart Features

The Testo 300+ is equipped with Bluetooth connectivity and the Testo Bluetooth Connector, enabling the simultaneous measurement of up to four parameters. Users can integrate Testo Smart Probes to expand the analyser’s capabilities for flow, return, and differential temperature measurements. Instant reports and analysis can be generated and shared wirelessly via WLAN, simplifying workflows and improving productivity.

Designed for durability, the Testo 300+ withstands demanding conditions thanks to its scratch-resistant touchscreen with a protective film. The soft instrument carry case and robust probe make this kit ideal for professionals who require reliability on-site.

With a ten-hour battery life, IP40-rated protection, and compliance with EN50379-1/3 and BS7967 standards, the Testo 300+ offers the performance and peace of mind essential for today’s heating engineers.

Key Features
  • Measures oxygen, carbon monoxide, draught, pressure, and temperature
  • CO sensor measures up to 8,000 ppm with H₂ compensation for accuracy
  • 5-year sensor lifespan reduces service and ownership costs
  • Large, 5-inch colour touchscreen for intuitive operation
  • Calculates CO₂, combustion efficiency (ETA), and flue gas loss
  • Scratch-resistant touchscreen with protective film
  • Bluetooth connectivity allows parallel measurement of up to 4 smart probes
  • Second-screen function enables remote monitoring via Testo Smart App
  • Includes Testo Bluetooth Connector for enhanced versatility
  • Complies with EN50379-1/3 and BS7967 standards for reliability
  • WLAN connectivity for instant reporting and data integration
  • Ten-hour battery life with a rechargeable power supply

 

Technical Specifications
SpecificationDetails
Oxygen (O₂) Measurement0 to 21 vol. %
Carbon Monoxide (CO) Measurement0 to 8,000 ppm (H₂ compensated)
Draught Measurement-9.99 to +40 hPa
Pressure Measurement-100 to +200 hPa
Temperature Range-40 to +1200 °C
Ambient CO Measurement0 to 2,000 ppm
Efficiency Testing (ETA)0 to 120%
Flue Gas Loss0 to 99.9%
CO₂ Calculation0 to CO₂ max (digital calculation)
Operating Temperature-5 to +45°C
Storage Temperature-20 to +50°C
Battery LifeUp to 10 hours
Protection ClassIP40
Wireless RangeUp to 100 metres
Display5.0″ HD touchscreen (1280 x 720 pixels)
WeightApproximately 800g
Dimensions244mm x 98mm x 59mm
MemoryStores 1 million measuring values
Warranty5 years
Manufacturer Part Code0564 3004 12
What’s Included
  • Testo 300+ Flue Gas Analyser with O₂ and CO sensor (8,000 ppm)
  • USB mains unit with cable
  • Testo Bluetooth Connector
  • Compact basic flue gas probe (180mm, 1.5m hose)
  • Soft case-style instrument bag

QUESTIONS

Product Question
Name
Name
Plain text only. HTML is not allowed.

Related Products

You may also like…

    • Anton Sprint Pro5 Multifunction Flue Gas Analyser
      Usually Ships In 3 to 5 Business Days

      Anton Sprint Pro5 Multifunction Flue Gas Analyser (Choice of Kit)

      £675.00 (ex VAT)
      £810.00 (inc VAT)
      • Includes NO sensor allowing for NO and NOx measurements
      • NO and NOx readings provided in FGA mode
      • Fully compatible with the Sprint Mobile app
      • Advanced water trap design prevents water ingress
      More info This product has multiple variants. The options may be chosen on the product page

    • Testo 300+ Flue Gas Analyser Advanced Kit
      Usually Ships In 3 to 5 Business Days

      Testo 300+ Flue Gas Analyser Advanced Kit (Choice of Sensor)

      £824.50 (ex VAT)
      £989.40 (inc VAT)
      • Measures O2, CO, NO, draught, pressure, and temperature
      • Equipped with Bluetooth for simultaneous multi-gas testing
      • 5-year warranty and long-lasting battery for reliable use
      • Advanced touchscreen for detailed, real-time data display
      More info This product has multiple variants. The options may be chosen on the product page

    • Testo 327-1 Flue Gas Analyser Standard Kit
      In Stock - Express Delivery Available

      Testo 327-1 Flue Gas Analyser Standard Kit

      £398.95 (ex VAT)
      £478.74 (inc VAT)
      • Carries out all required domestic tests
      • Multi fuel including natural gas, LPG, kerosene and oil
      • Shows 4 readings at once
      • CO over exposure protection
      More info

    • Anton Sprint Pro6 Multifunction Flue Gas Analyser (Choice of Kit)
      Usually Ships In 6 to 13 Business Days

      Anton Sprint Pro6 Multifunction Flue Gas Analyser (Choice of Kit)

      £850.00 (ex VAT)
      £1,020.00 (inc VAT)
      • Combines features of Sprint Pro 4 and Pro 5 in one unit
      • Ideal for COMCAT, incident, and CO/CO2 investigations
      • User-friendly interface with threshold selection for reports
      • Durable and robust design with over-range protection
      More info This product has multiple variants. The options may be chosen on the product page

    • Testo 310 (2nd Gen) Flue Gas Analyser Printer Kit
      In Stock - Express Delivery Available

      Testo 310 (2nd Gen) Flue Gas Analyser Printer Kit

      £399.95 (ex VAT)
      £479.94 (inc VAT)
      • Measures key flue gas parameters, including CO and O2
      • Bluetooth connectivity and infrared printer for easy reporting
      • 30-second sensor zeroing for efficiency
      • Battery life over eight hours with USB-C charging
      More info

Testo Flue Gas Promo