Accutire MS-4020GB Standard Digital Tire Gauge Review

This product was purchased in the Fall of 2002...
Of the ten or so units on the display rack, two of the units' LCD readout turned on by itself when I squeezed the handle.The reading was 00.0.The units may have been dropped by other customers.Who knows.
Having checked all of the open box units (the newer shipments were sealed in plastic blister packages), I bought the one without the abnormal symptons.For comparison, I also bought a store brand Mastercraft Canadian Tire LCD digital unit for the same non-discounted price.Thank goodness for their generous refund policy at this store.
Tests were conducted on one cold tire.After 3 readings, the Accutire consistently read 30 psig (which was the recommended tire pressure for my car).The Canadian Tire unit consistently read 30.5 psig.The cheapest spring loaded stick-type tire gage consistently read 32 psig.
I can safely declare that either one of the Accutire and Canadian Tire gages are correct within 0.5 psig as specified.The stick-type gage is way off.
Pros;
1)Accurate to within 0.5 psig which is acceptable for safe and economical driving.
2)[cost less]
3)5 year warranty.
4)Aside from the occasional cleaning of the tip, and as long as you don't drop it; it's maintenance free.
5)Low temperature tolerable lithium battery.
6)For my hands, the unit has an ergonomically comfortable rubber-coated grip.
7)Air tight seal on all valves tested everytime.
Cons;
1)A bit chunky in size for compact storage inside the car.
2)It's an electronic equipment, so be delicate with it.
3)Not designed to be water resistant.
The unit has sat inside the car through one 2002 frosty southern Ontario winter, and several hot and humid 2003 summer days.No problems so far.
A valuable and value priced tool.

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Product Description:
Heavy duty digital tire pressure gauge reads air pessure from 5 -150 PSI in 1/2-pound increments. The angled head and LCD display make the reading easily readable. It has a rubber coated handle for an easy grip. Includes permanent lifetime lithium battery. Five year warranty.

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