Keep a visible paper record of temperature and humidity with the Sato Sigma II NSII-Q thermohygrograph. Its clear cover lets you check the chart at a glance, while the quartz clock supports 1-day, 7-day or 32-day recording.
Choose your temperature range: 7210-00 measures −15 to 40°C; 7211-00 measures −10 to 50°C. Both measure 0 to 100% RH. Select the model that matches your site conditions before adding to cart.
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.
| Model | Temperature range | Humidity range | Best 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 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 |
Order replacement charts by both model and recording period. The charts for 7210-00 and 7211-00 have different temperature scales.
| Your instrument | 7-day charts | 32-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 →
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 →.
OEM F51079 recording pen for compatible chart recorders. Available in red, violet or blue.
Select your colour above. Each order quantity is for one pack of 5 pens.
Keep your Sato chart recorder ready for its next recording cycle. Choose the chart reference that matches your instrument and its recording period: 1, 7 or 32 days for selected Sigma II models, 7 days for Mini-Cube and Mini-Alpha, or the appropriate Rotona chart.
Select the exact chart reference before adding to cart. NSII-BQ charts record air pressure and are not interchangeable with temperature and humidity charts. Price and availability depend on the selected pack.
Refresh the trace on your thermohygrograph with a replacement Sato cartridge pen. Choose violet or red before adding to cart; each option is sold as one pen.
Check the pen fitted to your recorder before ordering. The selected colour’s price and availability appear beside the Add to Cart button.
