Before you buy a screen tension meter, we think you should know what makes the Newman ST-Meter special. Ours is the only meter in the world with all stainless steel hardened gears, shock-proof industrial grade internal gear movement and all jeweled sapphire bearings, giving you a screen tension meter of exceptional quality that will last longer and produce consistent readings every time. (All other mechanical meters have non-compound softer brass gears and bushing, greatly reducing their shock-resistance, long-term accuracy and life.) The crystal is shatterproof and curved to avoid glare and the heavy-duty protective aluminum housing makes for the most durable meter made anywhere. The modular construction assures easy and inexpensive repairs should it become necessary. Get the best screen tension meter available.