At US Mega Store we offer a full line of testing & measuring equipment, science & laboratory products, labeling & marking solutions, optics & much more from top-rated manufacturers! Over 160,000 products, 300 product categories are available in our online store: water & air quality meters, thermal cameras, label & sign printers, leak detectors, particle counters, fittings & couplings. Discounted prices and special offers on over 150 brands. Great Service and Best Prices!