i4 Small Hammer IoT liquid thermometer with display with alarm nodemcu IoT DS18b20

Features:

Waterproof temperature sensor
LCD screen display
Small Mace Watch Online
email alarm
Product parameters:

Driver board: nodemcu

Temperature sensor: DS18B20

Internet of Things platform: xdc.link

Wide temperature range: -55 ℃ ~ + 125 ℃

Accuracy: 0.5 ℃ (actual measurement error 1-2 ℃)

Alarm temperature: can be set

Power supply: USB

Shipping list:

A set of Internet of things thermometer without charging head