Features:
* It can be operated anywhere, and no distance limit.
* to 200 authorized numbers. The 1st ~3rd user numbers can receive SMS, and the 4th ~6th user numbers can receive calls when occurs. 1~200 authorized numbers can call T201 to turn on/off the Relay0.
* External AC/ status , AC/ on/off will send SMS and immediately call 6 preset phones.
* Timer report can be set every few hours, and its status/value will be automatically sent to 6 preset phones immediately.
* Support remote reading of historical data via SMS.
* Automation system, when the , or normal, it can link to Realy1 for operation.
* output, when occurs, it will output for 30 seconds.
* Internal rechargeable can be used continuously for 6 hours.
* , use caller and password for identification, unknown callers will be ignored.
* It can be programmed via SMS commands with password conservation.
* Based on GSM , suitable for many applications. (, status, solar panels, voltage).
 
Tips:
1. Please read the user manual carefully before installing and setting the control unit.
2. Install the system in a place.
3. pouring into the control unit.
4. Ensure that the connection to the main is secure.
 
Specifications:

Product name: Relay 
Rated voltage: 9V~24V / 1A
Working : -10℃~+60℃
Storage : -20℃~+60℃
Relative humidity: 10-90%, no condensation
Working frequency:
GSM: 850/900/1800/1900MHz
3G WCDMA: 900/2100 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 : type, 3V
: 50Ω SMA
Wired switch: support
:
: -55℃~+125℃:0.1℃
output: output voltage = input voltage, current: <1A
Backup : 3.7V / 1000mAH (without )
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: S5248-1
1 * GSM Relay
1 * Temp
1 * User Manual(QR code)