Gunson Gastester Digital - GPL
14-day returns on all eligible orders
Contact us within 14 days of receiving your order to request a return.
Shipping information
Orders are picked, packed and dispatched from our Northampton warehouse.
- Free delivery to mainland UK addresses on orders of £40 or more.
- Orders under £40, and orders to Northern Ireland, have a delivery charge, shown at checkout before you pay.
- You will get an email with your tracking number once your order has shipped.
Full details are in our Shipping Policy.
Returns & warranty
Changed your mind? You can return an online order within 14 days of receiving it. Please contact us first for return instructions, then you have 14 days to send the goods back.
- Items must be unused, complete and in their original condition, with all accessories, instructions and original packaging.
- You arrange and pay for the return postage on change-of-mind returns. We refund the price of the item plus our standard delivery charge.
- Damaged in transit? Let us know within 48 hours of delivery - photos help.
- Faulty or wrong item? Contact us before sending anything back. Faulty goods are covered by your statutory rights.
Your statutory rights are not affected. Full details are in our Refund Policy, or email onlinesales@nn4online.co.uk.
The Gunson Gastester is a digital exhaust carbon monoxide (CO) analyser with a pulse pump, accurately measuring CO levels for testing and setting carburettors (leaded or unleaded petrol) and petrol injection systems on any vehicle. The digital display clearly shows the CO volume percentage, allowing the engine to be tuned for optimal performance and cleaner, more efficient running. Ideal for checking CO after carburettor, ignition, and air filter maintenance, as well as tuning pre-cat classic cars, motorbikes, and single-cylinder engines. The system is easy to use: a metal exhaust probe is held in place with a pair of retaining springs, and a flexible pipe connects the probe to the Gastester. The kit includes everything needed for accurate CO testing and is supplied with full instructions.
Features
- A digital carbon monoxide tester for quick, easy checking of levels after engine maintenance work & tuning. Calibrates in air, no moving parts to wear out & no filters to change.
- Delivers accurate CO measurement to 0.5% at 15° to 25°C with adjustable calibration control for precise setting.
- 12V DC battery supply required. Supplied with 2 core cables with clips for easy attachment to the car battery.
- Contents: Gastester instrument including collector box & pulse pump/water trap assembly, metal exhaust probe with retaining springs, 3x flexible pipes & detailed instructions.
- The Gastester only measures the CO level in the exhaust gas & is therefore not suitable for MOT & diagnostic checks or vehicles fitted with catalytic converters where a greater accuracy is required.
Specifications
| Brand | Gunson |
| EAN | 5018341741259 |
| Type | Tuning |
| Item Weight | 0.884 kg |
| Custom Bundle | No |
| Item Width | 183mm |
| Item Height | 133mm |
| Item Depth | 245mm |
| Country/Region of Manufacture | Great Britain |
| Customs Tariff Number | 90271010 |
| Sub-Type | GENG |
| Manufacturer Part Number (MPN) | GPL |