Specification: Origin: Mainland China Input power: AC110-220V Output type: 1-way relay switch Probe model: 10K NTC 3950B Probe length: 2m waterproof probe Maximum control: power within 4000W Additional functions: buzzer prompt + backlight control Temperature control range: - 40 - 110℃ Temperature control accuracy: 0.1℃ Temperature measurement range: - 40 - 110℃ Size: 79.00x43.00x25.00mm/3.11x1.69x0.98inch Material: Shell Plastic Net weight: 98g Note: 1. The product is equipped with NTC waterproof sensor by default, without 18B20 digital sensor 2. When the 18B20 sensor is connected, the temperature will automatically switch to the test temperature of 18B20 3. Relay with point output (AC110-220V) does not distinguish between neutral and live wires Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you! Please allow 1-2cm measuring deviation due to manual measurement. Included: 1 x SA30 Remote Control Thermostat / 1 x SA30-W WIFI Remote Control Thermostat