WiFi Smart Thermostat Temperature Controller LCD Display Week Programmable for Water Heating Tuya APP Control Compatible with Alexa Google Home

Features:
 Tips:
1. Please read the user manual carefully before installing and setting up the control unit.
2. Install the system in a hidden place.
3. Avoid pouring water into the control unit.
4. Ensure that the connection to the main power supply is secure.
 
Specifications:
Product name: Monitoring Relay
Rated voltage: DC 9V~24V / 1A
Working temperature: -10c~+60c
Storage temperature: -20c~+60c
Relative humidity: 10-90%, no condensation
Working frequency:
GSM: 850/900/1800/1900MHz
3G WCDMA: 900/2100 MHz UMTS
3G CDMA2000: 850/1900MHz UMTS
3G: 850/2100MHz UMTS
Communication protocol: GSM PHASE 2/2 + (including data service)
Relative voltage of output relay: 3A / 240V AC
SIM card: Nano type, 3V
Antenna: 50o SMA
Wired switch: support
Temperature sensor:
Temperature: -55c~+125c:0.1c
Alarm output: output voltage = DC input voltage, current:
Back    up battery: 3.7V / 1000mAH (with Battery or without Battery optional)
Material: ABS
Item Size: Approx. 8.8  7.3  6cm / 3.5  2.9  2.4in
Package Information:
Package Size: Approx. 12.5  9.3  7cm / 4.9  3.7  2.8cm
Package Weight: Approx. 215g / 7.6oz
Note:
Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid.
Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!
 
Package List:
1  GSM Temperature Alarm Relay
1  Temp Sensor
1  User Manual(QR code)