Sensor: Accuracy:+/-1 celsius Set Temperature Range:5 to 35 celsius Room Temperature Range:5 to 99 celsius Power consumption:Less than 1.5W Timing Error:1% Power Supply:95 to 240VAC, 50 to 60Hz Current Load:16A Ambient Temperature 0 to 45 celsius, 5 to 95% RH (Non-condensing) Storage Temperature:-5 to 55 celsius Installation Hole Distance:60mm Style:Embedded Display Size:2.0 - 3.9 Inches Power Type:Charger Display Type:Digital Max Measuring Temperature:70C- 99C Model Number:16A08-3 Voice Control Thermostat Usage:Indoor :Temperature Controller Sensor:1 inside air sensor + 1 external sensor Thermostat type:WiFi thermostat Thermostat fits: Thermostat voice control:Yes, alexa voice control colour:gold Shell Material:PC+ABS (Flame Retardant) Dimension:90*90*45mm Package Contents: 1 * Carton 1 * Thermostat 2 * Screw 1 * External Sensor Line 1 * Manual Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.