Specs:
Display method
Measurement function
Measurement method
temperature accuracy
maximum humidity
Humidity accuracy
Country
Standard
$152.00
SE
TSINGTAO TOKY HM550 gas temperature and humidity Measurement Instrument, humidity range 10-95RH%
Integrated-20~60℃10~95%RH
Can measure humidity, temperature, wet bulb temperature value, humidity range 10-95RH%, accuracy 2.5% ± 1% RH, using backlit liquid crystal display.

$243.00
SE
TSINGTAO TOKY HD600B integrated dew point meter humidity/temperature/wet bulb temperature/dewpoint temperature
Integrated-20~60℃10~95%RH-40~40℃
Simultaneous measurement of humidity, temperature, wet bulb temperature, dewpoint temperature, integrated structure, using high-precision Sensors, built-in automatic protection measures.

$295.00
SE
TSINGTAO TOKY HD600-B take-over dew point meter humidity/temperature/wet bulb temperature/dewpoint temperature
takeover-20~60℃10~95%RH-40~40℃
Simultaneous measurement of humidity, temperature, wet bulb temperature, dewpoint temperature, using high-precision Sensors, built-in automatic protection measures.

$203.00
SE
TSINGTAO TOKY HM580 Portable Thermohygrometer Humidity range 10-95RH%
Split-20~60℃10~95%RH
Measurement of humidity, temperature, wet bulb temperature value, humidity range 10-95RH%, using precision digital Sensors, Sampling Time is 0.4s.

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