I do have something very similar to that model, can not quite remember what manufacturer bought from an Off-Road outlet. The analogue gage is way off on mine and I continually had to disconnect and take separate readings so I eventually replaced it with something else. I check pressures frequently but also due to my circumstances have to air right down spending on which way I need to enter or leave our property. One way is literally across fields with no trackway over part of its length. It is necessary then to have a fast pump with decent gage to air up 4 tyres other wise it takes an age.
Perhaps having air suspension might be a good idea, fast pumping for frequent use. Fast heavy duty pumps however do need a good amount of Amps to drive them, too much for a cigarette plug so I always connect direct to the vehicle battery, well positive + terminal and ground -, on the engine somewhere like the engine hoist ring.