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This product has been replaced by the TSB

This may be the coolest instrument we have ever developed! It has a touchscreen digital display with full-graphing capabilities which means your complete temperature and humidity history is at your fingertips - with scrolling and zoom.  The FH635 is equipped with a field replaceable temperature and humidity sensor and relay contacts for even greater flexibility and functionality. Software is only needed if you want to download the data to a PC.

  • NEW! Replaceable Sensor enabled
  • 4.1" x 5.5" (104mm x 140mm) Touchscreen Display
  • Audio/Visual Alarms
  • NO/NC RelaysTwo Channel
  • Probe Extension Cable available
  • Flash Card Data Download ready

To learn more about Replaceable Sensors and their benefits click HERE.

2GB SD Card not included with unit.

Fh635 straight on 1 1660
Pod 1 1674
Ft630 back 12332
Fh625 left side 12325
Ft630 rt side 12333
Fh625 straight on 2 12327
Fh625 straight on 5 12328
Fh625 straight on 7 12329
Touchscreen relay diagram 1 1770
Fh625 straight on w cable 12330

Download Images: Print Quality | Hi-Res

Important Information

DicksonWare Software is needed to communicate with this product and is sold separately.

Dickson Expert Services

Our Dickson Data Division has specially trained representatives to address the needs of customers with large installations or unique demands. Please call 888-452-4626.

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Description 8" (203mm) High Res Temperature & Humidity Chart Recorder with Display, Alarm, Relays and Replaceable Sensor.
Price $759.00
Remote Probe Icon compare check
Relay Icon compare check
  • Audible
  • Visual
Temperature Range Icon question
  • -20 to 120F
    (-20 to 50C)
  • 0 to 185F
  • 40 to 110F
    (5 to 40C)
Temperature Accuracy
  • +/-0.8F from 32 to 120F
    (+/-0.44C from 0 to 50C)
Humidity Range
  • 0-95% RH non-condensing
Humidity Accuracy
  • +/-2% RH from 5 to 95%
  • +/-2% RH from 5 to 95%
Add to Cart
  • Alarm Type Audio/Visual
  • Ambient Operating RH Conditions 0 to 95% RH non-condensing (Logger Only)
  • Ambient Operating Temperature Conditions 0 to 122F (-17 to 50C)
  • Battery Backup 12 Hrs (Re-chargeable batteries included; Hardwired)
  • Cable Details USB - Male Series A plug to 5 pin Male Series B mini plug.
  • Calibration Options N100 , N300, N400, & N520
  • Channels CH1: Temperature (F/C), CH2: Humidity
  • Data Capacity 32,000 (16,000 per channel)
  • Dew Point Accuracy +/-3.6F from 30 to 95% RH (Calculated) (+/-2C from 30 to 95% RH (Calculated))
  • Dimensions 1.4 x 8.5 x 6.9in (3.5 x 21.6 x 17.5cm)
  • Display Dimensions Height 5
  • Display Dimensions Width 6.4
  • Display Type Touchscreen
  • Display Update Rate Varies with logging interval
  • Displays Min/Max Yes
  • Download Type USB / Flash Card
  • Flash Card Option SD Card (2GB or less)
  • Humidity Accuracy +/-2% RH from 0 to 60%; +/-3% RH from 60 to 95%
  • Humidity Range 0-95% RH non-condensing
  • IP Rating 21
  • Key Features Touchscreen, multiple screen views, on-screen zoom and scroll, software optional, user customizable sample rate, temperature scales and unit of measure
  • Minimum Software Version Required 17.2.0
  • Mounting Options Mounting Bracket (Included)
  • Power Cord 6 ft
  • Power Source 120 to 240 VAC, 12 VDC (INTL adapters available)
  • Relay Type SPST, 24 VDC. 0.5A, N/O N/C
  • Remote Probe Dimensions Houses thermistor and RH sensor in polycarbonate plastic; 2.12" x 1.2" x .5"
  • Remote Sensor Length Single 10 ft extension cable available (without sacrificing accuracy)
  • Remote Sensor Type 1 Field Replaceable Digital Temperature/RH Sensor
  • Required Software A016, A026, N525 (all optional)
  • Response Time 1 Minute to 63% of Full Scale
  • Sample Interval User Selectable via Time Scale (See Product Manual for more details)
  • Temperature Accuracy +/-0.8F from 20 to 122F 1.8F Remaining (+/-0.45C from -6 to 50C 1C Remaining)
  • Temperature Range Help-40 to 185F (-40 to 85C)
  • Unit Weight 1.15 lbs
  • User Calibration with SW400 Yes
  • Warranty 12-Month Limited
Why should I calibrate?

All instruments lose accuracy over time due to normal usage and the environmental conditions to which they are exposed.

How often should I calibrate?

For most applications, the recommended calibration interval is every twelve months.

N100 1-Point NIST Traceable Calibration $99.00 Add
N300 3-Point NIST Traceable Calibration $156.00 Add
N400 3-Point Ultima NIST A2LA Accredited Calibration $269.00 Add
What is NIST Calibration?

NIST stands for the National Institute for Standards and Technology. This organization is responsible for maintaining the master for different measurements, such as the standard "foot", standard, "second", or standard "pound". NIST also maintains the standard for temperature, humidity and pressure.

NIST Traceable means that the measuring standard can be traced directly back to the master standard maintained by the NIST organization.

NIST-Traceable does not tell you the measurement accuracy of a metrologty service in any detail. Only metrology services that can document their ISO 17025 standard provided data on their best measurement uncertainty.

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Memory Card

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For more information on this product and other Temperature & Temperature & Humidity Touchscreens products see the Temperature & Temperature & Humidity Touchscreens page.