China Ds18b20 Temperature Sensor Freezer Temperature Monitoring Automotive Alarm

The GSM 3G SMS Environment Alarm is special for remotely monitoring onsite temperature, humidity, power status through wireless GSM/3G Network. When the temperature, humidity, power voltage exceed high threshold or low threshold value, will send SMS alert to upto 10 preset mobile phone immediately.

Just dial from Authorized User number, the GSM 3G Environment Alarm will reject at the first "Ring", no communication cost, and then return the current temperature, humidity, power status or voltage. Moreover, it can report onsite environment interval or daily.

The GSM 3G Environment Alarm can be used for solar power monitoring, DC power voltage monitoring, temperature monitoring, humidity monitoring, Class Room, Public Room, Waiting Room, Hospital, Stations, Fresh Food Warehouse, Office, Meeting Room, Laboratory, Library and anywhere that need monitoring temperature or control teMilitary mperature in expected range.

1.Can be operated from anywhere, no distance limitation;

2.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';

3.Multiple applications. (temperature, humidity, power status, solar panel, dc voltage);

4.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;

5.One Temperature & Humidity sensorinput, measures temperatures from -40-80°C,0.5°C accuracy, Relative Humidity from 0-99RH%,

accuracy is 3%;

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

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

8.Timer Report-Can setup every x hours automatically send its status/Value to the authorized numbers;

9.Support remotePipe Fittings ly read historic data via SMS;

10.Rechargeable Backup Battery inside can last 8hours;

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

12.Programmable by SMS Commands or APPs with password protection;

13.based on GSM Network, applied to many applications.

Parameter itemReference scopeDC Power supply9~36VDC, recommend 12VDC1APower consumption12V input Max. 50mA/Environment Protection Device Average30mAFrequency range2G:850/900/1800/1900Mhz
3G:W:900/2100Mhz C:850/1900Mhz T:850/2100Mhz4G LTE
SIM CardSupporting 3V SIM CardAntenna50 Ω SMA Antenna interfaceTemperature rangeAuto Repair Equipment & Tools -40-+80 °CHumidity rangeRelative humidity 0~90% (condensation free)Temp&Humidity SensorTemperature&Humidity Sensor, Model:AM2301 ,Temperatures from -40-80°C(0.5°C accuracy),Relative Humidity from 0-99RH%, accuracy is 3%.Backup Battery900mAH, last 8hoursExterior dimensionL70mm*W88mm*H30mmNet Weight300 gTool Packaging Temperature&Humidity&PowerAlarm X 1
GSM/3G/4G Antenna X 1
Backup Battery X 1 (Inbuilt)
AC/DC adaptor(12V1A) X1
User Manual X 1

AM2301 Temperature &Humidity Sensor, cable length 1m;
AM2305 Temperature &Humidity Sensor, cable length 5m;
AM2320 Temperature &Humidity Sensor, cable length 20m.