Description
To monitor and record relative humidity and temperature conditions. All models feature a human hair bundle humidity sensor (domed mini-drum model has dual bundles) and an aged bimetallic strip temperature sensor. Response time is 15 minutes for 45% of reading. Each unit is individually tested and includes a factory certificate stating that it meets or exceeds stated specifications. Each hygrothermograph also includes all the components necessary to get started including two felt-tipped pens (one blue and one red), one seven-day sheet of chart paper (one roll of one-month paper with long cycle model) and batteries. Hygrothermographs 354-27463, 354-27460 and 354-27466 are shown with optional axial fan for more uniform sample measurements in fluctuating environments. Domed Mini-Drum HygrothermographRecords temperature and humidity on seven-day rotation. Protective acrylic cover removes easily, yet latches securely in place. This hygrothermograph is compact and will fit almost anywhere. Quartz-controlled drive is employed for accuracy; operates for six months on one AA battery.354-24895 Economical Mini-Drum HygrothermographRecords temperature and humidity on seven-day rotation. It can be used in tight places such as under fume hoods or inside environmental chambers. Quartz-controlled drive mechanism rotates drum at a single speed.354-27463 Two-Speed Hygrothermographis a spring-wound model which records temperature and humidity on a one- or seven-day rotation. Made of lightweight, corrosion-resistant acrylic for indoor or sheltered outdoor use. Spring winding keeps chart running for eight days. Even when the motor begins to run down, a steady chart speed is maintained. Includes one 1-day gear and one 7-day gear.354-27460. Battery-Operated, Three-Speed HygrothermographSelect to record temperature and humidity for one, seven or 32 days with the flip of a switch. Lightweight, corrosion-resistant case for indoor or sheltered outdoor use. Quartz-controlled drive mechanism consistently rotates chart drum even when batteries are weak. A flashing LCD indicates the unit is operational.354-27466 Long-Cycle Hygrothermograph records temperature and humidity on a one- or three-month rotation. Quartz-controlled strip chart drive consistently rotates chart drum even when batteries are weak. This unit features a corrosion-resistant acrylic plastic case with tinted cover for easy viewing.Image(s) are representative of the product group and not necessarily the individual product.HygrothermographRange: Humidity: 5 - 90% RH; Temperature: -10 DEG to 50 DEG C (14 DEG - 122 DEG F)Accuracy: Humidity: +/-3% from 10 to 90% RH; +/-5% from 5 to 10% RH; Temperature: +/-1 DEG C (1.8 DEG F)Chart Range: 0 - 100% RHChart Graduations: Humidity: 1%; Temperature: 1 DEG C (2 DEG F)Chart Size H x L (in.): 65/8 x 111/2Power: Spring woundDimensions H x W x D (in.): 51/8 x 131/4 x 111/2HygrothermographRange: Humidity: 5 - 90% RH; Temperature: -10 DEG to 50 DEG C (14 DEG - 122 DEG F)Accuracy: Humidity: +/-3% from 10 to 90% RH; +/-5% from 5 to 10% RH; Temperature: +/-1 DEG C (1.8 DEG F)Chart Range: 0 - 100% RHChart Graduations: Humidity: 1%; Temperature: 1 DEG C (2 DEG F)Chart Size H x L (in.): 65/8 x 111/2Power: Two C batteriesDimensions H x W x D (in.): 51/8 x 131/4 x 111/2HygrothermographRange: Humidity: 5 - 90% RH; Temperature: -20 DEG to 50 DEG CAccuracy: Humidity: +/-3% from 10 to 90% RH; +/-5% from 5 to 10% RH; Temperature: +/-1 DEG CChart Range: 0 - 100% RHChart Graduations: Humidity: 1%; Temperature: 1 DEG CChart Size H x L (in.): 65/8 x 114 (1-month); 65/8 x 300 (3-month)Power: One C batteryDimensions H x W x D (in.): 51/8 x 131/4 x 111/2HygrothermographRange: Humidity: 5 - 90% RH; Temperature: -6 DEG to 40 DEG C (22 DEG - 104 DEG F)Accuracy: Humidity: +/-5% from 10 to 90% RH; +/-7% from 5 to 10% RH; Temperature: +/-2 DEG C (3.6 DEG F)Chart Range: 5 - 100% RHChart Graduations: Humidity: 5%; Temperature: 2 DEG C (2 DEG F)Chart Size H x L (in.): 35/8 x 81/16Power: One AA batteryDimensions H x W x D (in.): 37/8 x 6 x 73/8
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