7210-00 Sigma II Temperature and Humidity Recorder by Sato Keiryo

The 7210-00 Sigma II Temperature and Humidity Recorder by Sato Keiryo is designed for precise control of temperature and humidity in environments such as semiconductor, LSI production, environmental test labs, and chemical storage. It features:

• Measurement ranges: Temperature from -15 to 40°C; Humidity from 0 to 100% RH (non-condensing)
• Accuracy: Temperature ±1°C (10–30°C), ±2°C outside this range; Humidity ±3% RH (20–95% RH at 15–25°C), ±5% RH elsewhere
• Sensors: Bimetal for temperature; specially treated hair for humidity
• Recording periods selectable among 1, 7, or 32 days
• Quartz clock for timekeeping
• Minimum recording scale: 1°C for temperature and 1% RH for humidity
• Uses violet cartridge recording pen with longevity of approx. 6 months when used with 7-day chart paper
• Powered by two C-size batteries (not included)
• Dimensions: 336 mm width × 295 mm height × 148 mm depth
• Weight: Approximately 3.1 kg excluding batteries
• Note: Sold as used, without original box, and without batteries. Performance and function may not fully match new product specifications. Sold as-is.