rh350: dual input hygro-thermometer psychrometer

psychrometer with two type k inputs for superheat plus memory

• superheat differential measurements: t1-t2, air-t1, t1-dewpoint
• dual type k external temperature probe input
• simultaneous display of %rh, temperature and dew point or wet bulb or external probe temperatures
• built-in rs-232 interface (optional rs-232 cable) - uses windows® hyperterminal to download data to a pc
• memory stores up to 99 data records
• complete with two type k bead wire temperature probes and 4 aaa batteries