This system has been superseded by the GPPS-evo.

Designed for the laboratory.

GPPS-L, Our first LCD equipped gas pressure proving system, the addition of the LCD makes this system very easy to use. The LCD displays clear messages giving real information rather than just LED indications.

The GPPS-L is designed for use where gas taps could be left open to atmosphere in a gas line, such as a laboratory.

As with all our gas pressure proving systems it employs our patented technology to measure the pressure differential across the solenoid valve when performing a downstream integrity check. This method stops nuisance tripping of the gas supply.

An auto-stop timer is incorporated to help prevent unauthorised use of the gas out-of-hours.

From within the panel the engineer has several ‘engineer functions’ which can be used to aid in the setup of the system – such as displaying in real time both the inlet and outlet pressure at the gas valve (mbar) and the ability to power the valve at a button press, its with functions like these that for example a ‘valve let by indication’ check be performed with ease.

The system has now been superseded by the GPPS-L-CO2.

If you require further information about this product please call us on 0161 233 0600 or email at and we’ll be more than happy to help.




This product is no longer available. If you need assistance with an already installed unit, please get in touch and we’ll help.


All our products come with a 5-year warranty
Medem’s industry leading five-year warranty is a demonstration of the company’s confidence in the quality and design of its products.
This applies to the main panels and sender units, gas detectors carry a 2-year warranty.

Why not let us install your system and receive a 10-year Warranty?
Where we’ve commissioned an installed system, the warranty is extended from five to ten years. At the time of commissioning, photos and gas pressure readings are recorded along with other relevant details of the installation. A 24-hour helpline number and the serial number is attached with the panel and all details are then entered on to the Medem database.