What's in the box:

KKmoon GSM SMS Alarm System Temperature Humidity Power Status Monitoring Support Android APP Control 850/900/1800/1900MHz (Standard)

Features:

*Threshold exceeding alarm. When the temperature, humidity, power voltage exceed high threshold or low threshold value, will send SMS alert to up to 10 preset mobile phone immediately.

*Up to 10 authorized phone numbers, 5 can be used to receive call or SMS, and 5 can be used to call and SMS while alarm occurrence;

*No call charges for inquiry. The GSM Environment Alarm rejects the call from authorized number then return onsite temperature, humidity, and power voltage on the first 'ring';

*External AC Power status monitoring, AC On/OFF will send SMS to authorized phone numbers;

*Programmable by SMS Commands or Android APPs with password protection;

*Secure - Using caller ID and password for identification, unknown callers are ignored;

*Inbuilt MCU monitoring the DC input Voltage value, measure range is 9-24VDC, no need additional sensor to save cost;

*Timer ReportCan setup every x hours automatically send its status/value to the authorized numbers;

*Rechargeable backup battery inside can last 8 hours;

*Built-in buzzer led for environment alert;

*GSM Frequency: 850/900/1800/1900MHz;

*DC Power Supply: 9~24VDC, recommend 12V DC1A (not included);

*Sensor Range: Temperatures from -40-80C (0.5C accuracy), Relative Humidity from 0-99RH% (3curacy).