A digital gauge holds the reading, which is the practical difference from an analogue dial. The pressure is set, the unit stops at it, and the figure can be read after the chuck is off the valve rather than while holding it on and squinting at a needle.
Power source decides where the inflator can be used. A 12V unit runs off the vehicle it is inflating, which needs no other supply at all. A cordless unit on a battery platform runs anywhere. A rechargeable unit with a power bank function also charges a phone, which matters at the roadside. Sealey hold cordless inflators on the SV20 platform as a body only and as a kit with a 2Ah battery.
Maximum pressure sets what the unit will fill. The range runs 150psi on most bodies and 250psi on the 12V mini compressor, which covers van and trailer tyres as well as cars. A unit at its limit fills slowly and heats up, so headroom is worth having. Pressure and power source are stated together on every listing, which is what lets the two be read against the tyre.
Digital air line inflators are a different proposition, taking shop air and adding a digital gauge and automatic shut-off rather than generating pressure themselves. Twin connectors on some bodies suit a bay running more than one fitting. Send the vehicle and pressure needed to 07754288583 on WhatsApp. A mini digital bike pump covers the smallest volumes where a car unit would be more than the job needs.
| ITEM NO | 02142 |
|---|---|
| Operating Pressure | 116psi (8bar) |
| Air Inlet | 1/4" BSP male |
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