Dial: 0.3MM aluminum sheet printed with black text on white background.Measuring function parameters: Thermometer: -30-50, accuracy: +/-2Hygrometer: 0-100%RH, accuracy: +/-5%RH (40-70%RH)Barometer: 950-1070hPa, accuracy: +/-5hpa (980-1040hPa)Clock: The running error is no more than +/-1 second/dayProduct model:T-H-B-C9193Product name:(thermometer, hygrometer, barometer, clock) four-piece weather stationProduct materials:brass shell (high-precision polishing and varnishing), plastic bottom shell, acrylic plastic lens, precision temperature-sensitive hairspring, precision humidity-sensitive hairspring, barometer movement with precision gear transmission structure, 1-second precision clock movement. Metal pointer.Product size and weight:Thermometer: diameter 98 x thickness 33mm, 0.07KG;Hygrometer: diameter 98 x thickness 33mm, 0.07KG;Barometer: diameter 98 x thickness 36mm, 0.08KG;Clock: diameter 98 x thickness 32mm, 0.08KGColour:White & GoldMaterial:Brass + PlasticPackage Contents:1 * Air pressure gauge1 * Thermometer1 * Moisture meter1 * TimepieceOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.