SEALEY TST/ PG981
With the exception of a red ‘ON’ button, Sealey’s gauge with hose attachment is exactly the same as the Laser 2961. Even when we opened up the back to access the CR2032 battery, the components inside and the method of renewing the battery were identical.
There are no instructions, but we figured out how to switch between different units of measurement by holding down the red button; when the readout started to flash, we could then repeatedly press the button to change the unit. Attaching the end of the hose onto a tyre valve is straightforward, but we sometimes struggled to get an accurate fit and avoid air loss. It’s useful to be able to press the bleed valve on the other end of the hose (next to the gauge) to allow air pressure to be released from an overinflated tyre, while checking the readout.
These types of gauges reset their readout when the end of the hose is released from the tyre valve.