Sato Sigma II NSII-Q Thermohygrograph

See how room conditions change over time. The Sato Sigma II records temperature and relative humidity together on a rotating paper chart, making it easy to review trends and retain a physical record. The transparent cover keeps the chart visible during operation.

Choose Your Model

ModelTemperature rangeHumidity rangeBest fit
7210-00 −15 to 40°C 0 to 100% RH Locations that need the lower temperature scale
7211-00 −10 to 50°C 0 to 100% RH Locations that need readings up to 50°C

Before ordering: Select the instrument model above. The two models use chart paper with different printed temperature scales.

Recording and Specifications

Recording periods Selectable 1, 7 or 32 days; use chart paper for the selected period
Temperature sensing Bimetallic strip
Humidity sensing Human hair bundle
Temperature accuracy ±1°C from 10 to 30°C; ±2°C elsewhere within the measuring range
Humidity accuracy ±3% RH from 20 to 95% RH at 15 to 25°C; ±5% RH under other specified measuring conditions
Minimum chart divisions 1°C and 1% RH
Power Two C-size batteries
Dimensions 336 W × 295 H × 148 D mm
Weight Approximately 3.1 kg, excluding batteries

Matching Chart Paper

Order replacement charts by both model and recording period. The charts for 7210-00 and 7211-00 have different temperature scales.

Your instrument7-day charts32-day charts
7210-00 (−15 to 40°C) Shop 7210-82 charts → Shop 7210-84 charts →
7211-00 (−10 to 50°C) Shop 7211-62 charts → Shop 7211-64 charts →

Need a replacement cartridge pen? Shop Sato recording pens →

What Comes with the Instrument

Sato lists 55 sheets of the matching 7-day chart, two C-size alkaline batteries and an instruction manual as standard accessories. Extra charts and replacement pens can be ordered separately.

For the full model comparison and further reading, visit the Sato NSII-Q main product page →.



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