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SSN-22 USB temperature humidity logger


Display and record temperature and humidity

Portable, precise, compact and low cost

USB interface directly communicate with PC for setup and data download

Alarm and status indication via LED

Replaceable lithium battery and data is not lost if exhausted

Two point calibration for each channel

Alarm limits settings for all channels

User can name each channel and enable/disable it

Easy to use, stable and reliable

IP67 and CE certified


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SSN-22 USB temperature humidity data logger measures and stores up to 32000 temperature (-35 to 80℃(-31~176℉)) and humidity (0 to 100%RH) readings. Logger status, alarm indication and low battery indication are via flashing red/green LED and yellow LED. The button on housing can be used to start logging, or confirm and clear LED alarm when LED alarm is hold status. Software can run under Windows XP, Vista, 7 or 8(32 bit and 64 bit Versions). User can easily use DGraph software to setup sample rate(from 10 seconds to 12 hours), high/low alarm limit and start/stop method , and download data to PC, etc. And then user can view, analyze and print the data, or export other file formats (txt, xsl, csv, bmp, jpg).

Technical Specifications:

    SSN-22 SSN-22E
Relative Humidity Measurement Range 0~100%RH 0~100%RH
Accuracy(Typ.) ±3%RH ±3%RH
Resolution (Typ.) 0.1%RH 0.1%RH
Temperature Measurement Range -35~80℃ -40~100℃
Accuracy(Typ.) ±0.3℃ ±0.3℃
Resolution (Typ.) ±0.1℃ ±0.1℃
Sensor Type   Internal External
Memory Capacity    32,000 readings 32,000 readings
Sample rate 1s~24h
Software DGraph
Power Supply User replaceable 1/2AA 3.6V lithium battery, 1200mAh
Battery Life Approx. 3 Years @ 1 Minute Sample Rate
Dimensions 120mm×37mm×23mm
Net Weight 80g


Typical Applications:

SSN-22 data logger is used mainly to monitor and verify temperature-sensitive goods, equipment or areas. Example: Cold Chain, Refrigeration, Transportations, HVAC, Food&Pharmaceutical, Warehouse etc.