Fluke Calibration

1620A Digital Thermometer-Hygrometer

The most accurate temperature and humidity graphical data logger on the market

Starting At
$3,652.00 CAD
Normally ships in 1-2 Weeks

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The Fluke 1620A (DewK) thermo hygrometer and humidity monitor measures temperature to +/- 0.125°C and humidity to +/- 1.5% on two channels, and displays it on a big, clear screen. Ethernet, wireless (optional), or RS-232 will allow you to network as many Fluke 1620s (DewKs) as you’d like. And the LogWare III software will allow real-time logging of multiple Fluke 1620s (DewKs), data storage to your computer and seamless integration with MET/CAL® software.

The high-accuracy sensor (“H model) reads temperature to +/- 0.125°C over a calibrated range of 16°C - 24°C. Relative humidity readings are to +/- 1.5% RH from 20% RH to 70 % RH.  The standard-accuracy sensor (“S model) reads temperature to +/- 0.25°C over its calibrated range of 15°C - 35°C. Relative humidity readings are to +/- 2% RH from 20% RH to 70% RH.

All Fluke 1620A (DewK) thermo-hygrometer sensors come with NVLAP accredited certificates of calibration for both temperature and humidity, complete with data and NIST traceability. 

• Superior accuracy
• Network enabled
• Powerful logging and analysis tools
• Two interchangeable calibrated sensors
• Huge memory
• Upgraded software

Operating Range 0C - 50C (32F - 122F)
0% RH - 100% RH
Calibrated Temperature Accuracy (H Model) +/- 0.125C from 16C - 24C (+/- 0.225F from 60.8F - 75.2F)
Calibrated temperature Accuracy (S Model) +/- 0.25C from 15C - 35C (+/- 0.45F from 59F - 95F)
Calibrated RH Accuracy (H Model) +/- 1.5% RH from 20% RH - 70% RH
Calibrated RH Accuracy (S Model) +/- 2 % RH from 20% RH - 70% RH
Expected Extrapolated Performance (Uncertified) +/- 0.5C (+/- 0.9F) outside calibrated range
+/- 3% RH outside calibrated range
Delta Temperature Accuracy +/- 0.025C for +/- 1 changes within 15C - 35C (+/- 0.045F for +/- 1 changes within 59F - 95F)
Temperature Resolution User selectable up to 0.001C/F on front-panel display (0.01 recorded)
Delta Humidity Accuracy +/- 1.0 % RH for +/- 5 % changes within 20% RH - 70% RH
RH Resolution User selectable up to 0.01% on front-panel display (0.1% recorded)
Inputs Up to two sensors, measure temperature and relative humidity, detachable, cable-extendable, interchangeable, self-contained calibrations, may be assigned unique 16-character identifications
Display 240 x 128 graphics monochrome LCD, displays password-protected temperature/humidity data graphically, numerically, and statistically (one or both channels); 16 pre-defined, user-changeable screen setups
Memory 400,000 typical individual date/time-stamped readings
Alarms Password-protected visual, audible, and external alarms for temperature, temperature rate, RH, RH rate, and fault conditions
Alarm Port Output 2.5 mm two-conductor subminiature plug, 0 V normal, 11 - 12 V active, sources up to 20 mA
Connectivity Ethernet, RS-232, RF (optional)
Ethernet RJ45 jack, 10 Base-T or 100 Base-TX; static or dynamic (DHCP client) IP address assignment
Web Page Embedded web page interface features: instrument identification, measurements, password-protected terminal page; can be disabled
Wireless Option Requires wireless modem. 802.15.4 (underlies Zigbee), 2.4 GHz frequency, 1 mW transmit power, 30 m (100 ft) typical unobstructed range; can be disabled
Mounting Wall mounted (hardware included) or set on a bench top
Power 12 VDC from external 100 - 240 VDC power supply
Battery Backup Standard 9 V battery enables continued measuring during power disruptions
Size (DewK) (H x W x D) 125 mm x 211 mm x 51 mm (4.9 in x 8.3 in x 2.0 in)
Size (Sensors) (L x Dia) 79 mm x 19 mm (3.1 in x 0.75 in)
Weight 0.7 kg (1.5 lb)
Calibration Certificate of NIST-traceable NVLAP accredited temperature and humidity calibration included; As Found and As Left data supplied at three temperature points and three humidity points each at 20C (68F); Complies with NCSL/ISO/IEC 17025:2000 and ANSI/NCSL Z540-1-1994
LogWare III (Optional Software) Requirements include: Microsoft Windows 2000 (SP4) or XP (SP2) operating system, IBM compatible Intel Pentium IV 1 GHz PC processor or better, 512 MB RAM (1 GB or more recommended), 200 MB HDD space for installation (additional free space recommended for data storage), CD-ROM drive for installation.
Acquires environmental condition data from the Model 1620/1620A "DewK" Thermo-Hygrometer
Normally ships in 1-2 Weeks
Starting At
$613.00 CAD
Spare power supply for the 1620A Digital Thermometer-Hygrometer (100 - 240 VAC)
Normally ships in 1-2 Weeks
$240.00 CAD
Protective case for 1620A DewK digital thermometer-hygrometer and two sensors
Normally ships in 1-2 Weeks
$785.00 CAD
Spare sensor for the 1620A "Dewk" thermo-hygrometer
Normally ships in 1-2 Weeks
Starting At
$941.00 CAD
Sensor extension cable for 1620A DewK Digital Thermometer-Hygrometer
Normally ships in 1-2 Weeks
Starting At
$279.00 CAD
Wireless modem for use with the 1620A DewK Thermo-Hygrometer
Normally ships in 1-2 Weeks
Starting At
$763.00 CAD