Control your thermostat using any touchtone telephone;Calls up to 4 phone numbers to notify of abnormal conditions;24 hour battery backup in event of power failure;Dimensions: 2.1 x 7.8 x 8.8;Battery: Uses 6 C alkaline batteries (not included), providing up to 24 hours of back-up time
| Manufacturer | Phonetics, Inc. |
| Item Weight | 0.01 ounces |
| Color | Grey |
| Material | Plastic |
| Item Package Quantity | 1 |
| Batteries Required? | No |
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