Comparison of several industrial-grade digital display Thermohygrometers

The main types of commonly used industrial grade temperature and humidity meters include digital display and pointer. The measurement principles include dry and wet bulbs, dew point, hair and other measurement principles. The hygrometer is selected and compared, and the specific parameters are compared as shown in the table below. From the table, it can be understood that the technical parameters of different brands will still have relatively large differences, and users can choose according to their actual needs. For more selection guidelines of temperature and humidity meters, please log in to check the instrument for inquiry.

Model comparison
Compare category	thermometer	RV2100	HW100	GM1360A	TASI-622A	Elcometer 309
product picture
brand		TQC	Hypertherm Instruments	Biaozhi	Teans	Elcometer
place of origin		Netherlands	CHINA	CHINA	CHINA	U.K.
precision level		industry	industry	industry	industry	industry
display type		digital display	digital display	digital display	digital display	digital display
Measurement methods		Wet and dry bulb dew point	Wet and dry bulb dew point	Wet and dry bulb dew point	Wet and dry bulb dew point	dew point
Specification comparison
temperature range		-20~50/70℃	-40 ~ 125°C (-40 ~ 257°F)	-30℃~80℃	-50°C to 1000°C, (-50°F to 1832°F)
temperature accuracy		±1.5℃	±0.2°C from 10 to 55°C, ±0.4°C from -40 to 125°C, ±0.4°F from 50 to 131°F (±0.8°F from 40 to 257°F)	±1°C (±1.8°F)	Specifications for the temperature and humidity meter operating within one year at 18°C to 28°C (64°F to 82°F), excluding the error of the K-type thermal coupling probe.
temperature resolution		0.1℃/℉	0.1°C/0.2°F	0.1℃/0.1℉	0.1°C or 0.2°F
Temperature Sensor Type		Silicone bandgap	semiconductor		Thermistor temperature sensor
Relative Humidity Range		0~100%RH	0 to 99.9 % RH (relative humidity)	0%RH~100%RH	0% to 100% RH	-20℃ to +80℃ (-4ºF to +176ºF)
Humidity Accuracy		±% (33%~75%RH)	±2.0 % RH (10 to 90 % RH) @25°C ( 77°F) ±3.0 % RH (< 10, > 90 % RH) @25°C ( 77°F)	±3%RH (at 25°C, 20-80%RH); <±5%RH (at 25°C, 0-20%RH～80-100%RH)	±2.5% at 25°C(77°F), 10% to 90% RH ±5% at 25°C(77°F), 0% to 10% RH, 90% to 100%RH	0% to 100% RH (±3%) (factory setting 75%, user can customize)
Humidity Resolution		0.1%RH	0.1 % RH	0.1%RH		0.1℃ (0.1ºF) / 0.1%
Response time			30 seconds maximum
Sensor lag			±0.3 %RH
drift			<0.5 %RH/year
Humidity Sensor Type		capacitive polymer	Electronic capacitive polymer film		capacitive humidity sensor
Wet bulb temperature range			-20 to 60°C (-4 to 140°F)
Dew point temperature range			-50 to 60°C (-58 to 140°F)
data storage			99 sets of data	16000 groups
power supply		3x1.5V AAA batteries	Built-in lithium battery	9V 6F22 battery powered	1.5V (SIZE AAA) UM-4 R03 batteries 4pcs	2 AA batteries or via USB cable
Operating temperature			-20 to 60°C	-0°C-50°C (32°F-122°F)	0°C to 50°C (32°F to 122°F)
Working humidity			0 to 55°C	≤80%RH non-condensing
weight		130g/160g	190 g (including battery)		About 230g (including battery and sheath)	300g (10.6oz)
size		25x56x128mm	130mm x 65mm x 2mm		16 cm (height) x 8.3 cm (width) x 3.8 cm (thick)	180 x 75 x 35mm (7 x 3 x 1.4")

Relevant knowledge

Guess you like it