Our company is the first factory that adopt advanced sensor chip which made by Honeywell from USA, FM from France, SENSIRION from Switzerland, SHINYEI from Japan, SEMITEC / ISHIZUKA from Japan, SHIBAURA from Japan. We base on these advanced sensor, designnning and producing new kind temperature and humidity control product which can widely use in industrial data indication, it's can widely use in national defence, medication, storage, environment protect, decontaminate laboratory, fitment temperature and humidity indicate etc. OEM and ODM are welcome, we are the professional and multi diversified temperature and humidity meters manufacturer. Quality is good, price is reasonable.