Specs:
Display method
Measurement function
Measurement method
temperature accuracy
maximum humidity
Humidity accuracy
Country
Standard
$1627.00
SE
Defelsko DPMS3 advanced temperature Humidity Measurement Instrument, wireless data transmission +/- 0.5 ℃ accuracy
external0~100%RH
Measuring temperature, Humidity parameters, surface temperature range 40~80 ℃, Humidity range 0~100%, to achieve +/- 0.5/1.5 ℃ accuracy, for the measurement environment Humidity and surface temperature special advanced Measurement Instrument. Equipped with calibrated certificate.

$1137.00
SE
Defelsko DPMS1 Portable Humidity Tester split standard 0.1 ℃ high resolution
external0~100%RH
Humidity Measurement Instrument with probe split structure, with the function of measurement Relative Humidity, air temperature, surface temperature, dewpoint temperature and surface and dewpoint temperature difference, surface temperature range -40~80 ℃, Humidity range 0~100%, equipped with calibrated certificate

$1492.00
SE
Defelsko DPM3-E digital dew point Measurement Instrument wet-bulb temperature display 20000 reading memory
built-in0~100%RH

If you don't know how to choose "Thermohygrometer", please consult customer service.