Fisherbrand™ Certified Traceable™ Digital Hygrometer/Thermometers 

Meet critical experimental requirements, perform routine measurements, and fulfill all quality control needs.

Catalog Number	Diameter (English) Probe	Diameter (Metric) Probe	Type	Humidity Range
11-661-7A	0.7 in.	1.8 cm	Basic Model Digital Hygrometer/Thermometer	10 to 95%
11-661-7B	0.4 in.	1 cm	Instant Model Digital Hygrometer/Thermometer	5 to 95%

Description

Meet critical experimental requirements, perform routine measurements, and fulfill all quality control needs. Fisher Scientific™ Certified Traceable Digital Hygrometer/Thermometers are ideal for cleanrooms, hoods, environmental chambers, incubators, desiccators, and all inside/outside air monitoring.

Accessories: Data acquisition software and system with computer outlet part number: 15-077-70.

• Temperature range: -40° to +104°C and -40° to +220°F, with ±0.4°C (±0.4°F) accuracy, 0.1°C resolution
• RH range: 10 to 95% (basic model), 5 to 95% (instant model); accuracy, ±1.5%; resolution, 0.01%
• Calculate frost point, latent heat, sensible heat, vapor pressure, moisture content, specific enthalpy, specific volume, specific humidity, mixing ratio, and vapor density from moist air
• Programmable high and low setpoints for temperature, humidity, and dew point sense out-of-specification condition, sound alarm, and flash display
• Built-in memory recalls highest and lowest readings; computer output capability† permits data to be captured, stored, and printed
• Instant model provides humidity readings in <10 seconds; basic model in up to 3.5 minutes

 

 

• Bright, 0.5 in.-high, four-digit LCD is 10 times more readable than glass thermometer sling units or meter scales
• Microcomputer, solid-state construction eliminates glass breakage, mercury separation, and dial shock damage
• Tough ABS plastic cases ensure a long life—even in severe lab or harsh plant environments

Certifications

A certificate is provided to indicate instrument traceability to standards provided by the National Institute of Standards and Technology (NIST™).

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Specifications

• Alarm Types: Audible
• Accuracy: ±1.5%
• Display Type: LCD
• Length (English) Cable: 72 in.
• Length (Metric) Cable: 182 cm
• Material: ABS Plastic
• Temperature Resolution: 0.1°F
• Temperature Accuracy: ±0.4°C
• Temperature Range (Metric): -40°C to +104.4°C
• Weight (Metric): 0.34 kg

• Certifications/Compliance: ISO 17025, A2LA, NIST
• For Use With (Application): Ideal for cleanrooms, hoods, environmental chambers, incubators, desiccators and all inside/outside air monitoring
• Includes: 7 in. combination probe, 54 in. cable, 9V alkaline battery (one year intermittent, 100 hour continuous), low-battery indicator and ABS Plastic carrying case
• Length (English) Probe: 7 in.
• Length (Metric) Probe: 18 cm
• Resolution: 0.0001
• Sensors: Precision, thin film capacitance/thermistor
• Temperature Range (English): -40°F to +220°F
• Weight (English): 12 oz.