Temtop vs Smidge

Detection function: formaldehyde, PM2.5, TVOC It is equipped with British Dart formaldehyde electrochemical sensor, which effectively reduces gas interference and makes formaldehyde detection more accurate. Accurate and reliable data using the US TEMTOP laser particle sensor

Smidge is a tiny, careful unit converter. No ads, no chatter, no sign-ups — just the answer, at the speed you need it. Type a number and read the result instantly. Smidge does the math, remembers what you use, and gets out of your way. WHAT YOU CAN CONVERT • Length, mass, volume, temperature, area, speed and more • See every unit at once with the "all at once" view • Do quick math right in the field — type 3 × 250 + 50 and convert the result BUILT FOR REAL LIFE • In the kitchen — density-aware cooking conversions. Cups to grams by ingredient (flour, sugar, butter and more), using USDA reference densities. No more guessing. • Trades — millimetres to feet, inches and fractions, down to 1/8, 1/16, 1/32 or 1/64. • Medical reference — blood glucose between mg/dL and mmol/L, shown against standard ADA ranges. For education only, not a diagnosis. • Currency — handy offline reference rates for quick estimates. MADE TO STAY OUT OF THE WAY • Pin the conversions you use most for one-tap access • Metric or imperial, with adjustable decimal precision • Works fully offline — everything runs on your device • No accounts, no ads, no tracking, no data collected Smidge keeps everything local. There's no backend, nothing to sign in to, and nothing leaves your phone. A small amount. Measured carefully. — Medical conversions are provided for educational and reference purposes only and are not medical advice or a diagnosis; always consult a qualified clinician. Currency figures are approximate offline references and may not reflect current market rates.