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Humidity Measurement Instruments

Click photos for more info	Model	Features	Range	Accuracy	Price
Thermo-Hygrometer
	Pocket TH	Dual display for humidity and temperature. Max/Min memory. °F/°C switchable. Large digit display. Pen shape design. Pocket clip. 3% accuracy.	RH: 20 to 95% Temperature: 32 to 122°F / 0 to 50°C	±3% RH at 77°F 25°C; ±2°F / 1°C	Was $35 Now
	Thermo-Hygrometer	Large digit display for humidity and temperature. Max/Min memory. Ice point alert. Outdoor temperature display/remote sensor. °F/°C switchable. Foldaway stand. Mounting keyhole.	RH: 20 to 99% Indoor: 32 to 122°F / 0 to 50°C Outdoor: -58 to 158°F / - 50 to 70°C	±3% RH at 77°F 25°C; ±2°F / 1°C
	6000 6100 Thermo-Hygrometers	Remote or intergral humidty & temperature probe. Max / Min function & dew point calculation. Long battery life - 10,000 hours. High accuracy - 2%rh.	RH: 0 to 100% Temperature: -4°F to 122°F / -20°C to 50°C	-±2% (10 - 90%rh); ±1°F ± 1 digit	starting at
	Precision Humidity Meter	High Accuracy (±2%) Fast Response Time Relative and Absolute Humidity Psychrometer Temperature, Dew Point, Wet Bulb, and Mixing Ratio Large Dual Display Backlight.	RH: 0 to 100% Temperature: -30 to 199°F / -30 to 100°C	RH: ±2% Temperature: ±0.9°F / 0.5°C
ThermaData Humidity Loggers
	ThermaData Series II HTB - Temp & Humidity Without Display	Visual alarm indication Start directly on logger Stores up to 8,000 readings Single software suite for all ThermaData models	-4°F to 185°F (-20°C to 85°C) 0 to 100% RH	±0.9°F (±0.5°C) ±2% RH
	ThermaData Series II HTD - Temp & Humidity With Display	LCD temperature display Visual alarm indication Start directly on logger Stores up to 8,000 readings Single software suite for all ThermaData models	-4°F to 185°F (-20°C to 85°C) 0 to 100% RH	±0.9°F (±0.5°C) ±2% RH
LogMaster Humidity Loggers
	TransiTemp-RH Multi	Push button start. Can be reused. Measure temperature and humidity. 8,191 readings per channel.	0 to 90% RH 4 to 158°F -20 to 70°C	±0.5°C ±5% RH
	RHTemp101	Read Temperature and humidity. Small Size. 21,845 readings per channel.	-40 to 176°F -40 to 80°C 0 to 95% RH	±0.5°C ±3.0% RH
	MicroRHTemp Ultra Small recorder	Micro-sized unit. Stainless steel casing. LED alarm indicator. 16,383 readings per channel.	0 to 95% RH 32 to 122°F 0 to 50°C	±0.5°C ±3.0% RH
	RFRHTemp101A	Wireless temperature and humidity. 5,461 readings per channel. LED alarm indicators.	22 to 158°F -30 to 70°C 0 to 95% RH	±0.5°C ±3.0% RH
Sato Humidity Logger
	Sato Logging Temperature/Humidity Meter II	Store 8,100 readings per channel. Log interval of 1 sec to 90 min. USB connectivity.	-10 to 60°C 10 to 99.9%rh	±0.1°C + 1 digit ±0.1%rh + 1 digit
RTR Series Temperature/Humidity Logger
	RTR-53 Water Resistant Wireless Temp & Humidity Logger	Dual channel external Splash resistant Stores 8,000 readings per channel Wireless up to 100m (300 feet) LCD temperature display Optional 2 year battery Downloads to handheld unit	-32 to 131°F (0 to 55°C) (ext temp/humid probe) 10 to 95%RH (ext temp/humid probe)	±0.54°F (±0.3°C) ±5%RH (at 25°C and 50%RH)
TR-7 Series Temperature/Humidity Recorder Logger
	TR-72U Temperature/ Humidity Recorder	2 channel (temp and humidity) Direct USB download to PC Stores 8,000 readings per channel Downloadable to RTR-57U Handheld LCD temperature Display Lasts 1 year on single AA battery	32 to 122°F (0 to 50°C) (ext temp/humid probe) 10 to 95%RH (ext temp/humid probe)	±0.54°F (±0.3°C) from 4 to 176°F (-20 to 80°C) ±5% RH (at 25°C and 50% RH)
TR-7 Series Network Dedicated Temperature/Humidity Recorder
	TR-72W Network-Dedicated Temperature/ Humidity Recorder	2 channel (temp and humidity) Built-in Ethernet/LAN interface Built-in SMTP server for email alerts Stores 8,000 readings per channel LCD temperature Display AC powered with battery backup	32 to 122°F (0 to 50°C) (ext temp/humid probe) 10 to 95%RH (ext temp/humid probe)	±0.54°F (±0.3°C) from 4 to 176°F (-20 to 80°C) ±5% RH (at 25°C and 50% RH)
1620 The DewK Thermo-Hygrometer Recorder
	1620 "The DewK" Thermo-Hygrometer	0°C to 50°C (-32°F to 122°F) / 0 to 100% RH Measures up to 2 inputs Ethernet, wireless, and RS-232 available 400,000 reading memory Includes NIST certificates	32 to 122 °F 0 to 50°C 0 to 100% RH	±0.45°F from 59 to 95 °F / ±0.25°C from 15 to 35°C ±1.0%RH for ±5% changes within 20 to 70%RH	from