Certainly sounds the goods, I'm sure it wasn't available when I got my GDH 14. Agree with the downsides of the GDH 14, they arent enough to make me go out and replace it now, but I would probably be leaning more towards the Vac Checker if I was in the market for one now.

The vac checker is a truly amazing product. There is simply nothing I would change about it. But I have to say that it was my first digital gauge, and still is my only one.

The GDH-14 is great but the solution is 1mbar while our Vac Checker has 0.01mbar. That helps a lot with drop tests.
Also the VacChecker shows the boiling point of water at ambient temperature and actual vacuum. This helps to see if there is water in the setup.
The VacChecker als has connectors that can be changed in case they brake or you need different diameters and has two connectors so it can be used inline.
As the price is similar and VacChecker is more robust I know what I would choose.
Before someone starts to say of course I say that because it is our product I just want to say we used the GDH 14 before and we had the problems mentioned above that’s why we decided to develop the VacChecker with Testo.

Thank you very much Hanaldo

GDH 200-14 is excellent.

Hi guys I have read a lot about resin infusion in the forum and other sites, I am a beginner and I have come to the conclusion that I need a digital pressure gauge to save time and materials due to my lack of knowledge. My question is which one do you recommend the model to me Vac Checker, or the GDH 200-14 model are both similar in price, well I hope your help and sorry for my English I am from Spain.

If the 200€ are too much to spend for equipment it might be better to do wet layup. Otherwise you will spend more money soon on wasted materials.

Horses for courses Dominik. I love my GDH-200, it saves me LOADS of time. But I certainly wouldn't say it is a must for a non-production environment. Realistically, if you have the time to leave a part clamped off for 4-5 hours, then a digital gauge isn't going to tell you anything extra. If you haven't got time to wait that long, then perhaps the pricetag of a digital vac gauge becomes more appealing, but that's really just a case of personal opinion or situation.

A digital vacuum gauge is a must if you want aa perfect infusion. The analog ones coming with catch pots are best case a good guess. Also measuring the vacuum at the catch pot does not tell you anything. The vacuum should be measure prior infusion at the farest point from the vacuum pump, and thats the resin inlet. The Vacuum gauge should be connected to the resin inlet so you defenitly measure the pressure in the part. Also the gauge needs to be a absolute pressure gauge like the Greisinger GDH 200-14 or the Vac Checker from us.
https://www.dd-compound.com/vac-checker/
The gauges at the catch pots measure the vacuum of the pump and are also affected by possible leaks of the catch pot. Thats also the reason why a droptest doesn't tell you anything.
The pressure drop should be max 1mbar/min  and that can't be measured with a analoge  gauge.

For infusion you should definitely have a gauge - and a digital one is totally worth it if you are doing this professionally or have expensive materials under your bag.  I have one like the GDH200-14 Hojo recommends and it is awesome!  You just get much better visibility on the process with a digital gauge.

For bagged wet layup it is nice but a cheap one will be plenty - you really just need to be sure you're not pulling too much vacuum!  Having a dial gauge on a pressure pot is nice but it doesn't need to be fancy.

Remember that if your gauge is plumbed up next to the pump it will be telling a different story than if it is connected independently to the bag through a separate penetration!