| Battery type | CR2450 x1 |
| Battery life (stand-by) | 3 years (typical) Does not use battery while HVAC is turned on or “C” wire connected. |
| Range | 700ft (210m) line of sight (at default setting.) |
| HVAC Compatibility | If you see a wire shorting “Rh” and “Rc” in your exsiting thermostat, Kumostat is compatible. Supports < 20VA, 24Vac rated coil. Supports 3 stage heating and 2 stage cooling HVAC systems with fan and reverse valve (7 relays total). Completely programmable wiring allows the 7 relays to be assigned to any kind of desired function. For example
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| Relative Humidity | +/-2% RH error, 10-bit resolution (0.12% step) Logging and notification |
| Temperature | Operation range: -40°C (-40°F) to 85°C (185°F) Sensor accuracy: +/-0.4°C typical Sensor quantization level (resolution): 13-bit, 0.02°C step Logging and notification |
| Dimensions | Height: 4.3 inch (110 mm) Width: 2.5 inch (64 mm) Thickness: 0.9 inch (23 mm) |
Through our minimalist approach of just providing the radio for Internet connectivity, internal temperature+humidity sensor and solid state relay for multi-stage HVAC control, we are able to provide a thermostat that allows all the learning algorithms thermostats like Nest provide and much more (you have various external sensors to play with, and there is no limit what kind of algorithms you can create in KumoApp), at fraction of the cost.
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FCCID: ZGW09. FCC Compliance Statement: This device complies with part 15 of the FCC rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. Caution: Any changes or modification cautions to this device not explicitly approved by manufacturer could void your authority to operate this equipment.