Security and Connectivity to Protect 

ST-901 Function

Build-in GPS Vehicles locator

Support 4-frequency GSM 850/900/1800/1900 MHz which can Work worldwide

Support track the real time address by google link

Built in battery 150 mAh

Support Geo Fence Alarm

Main Power Off Alarm (with built battery only)

Support single location

Support Over Speed Alarm

Support Low Power Alarm


With ACC to detect ignition CONS: CON 1 

Supports only 2G Network

ST-901 Specification

Operating temperature: -20° to 55° C

Operating Humidity: 5% to 95% Non-condensing

GSM Quad Band GSM 850/900/1800/1900Mhz

GPS Chip: UBLOX7020

GPS sensitivity: --162Db

Location Accuracy: 5- 10 meters, 2D RMS

Time Accuracy: 1 microsecond time synchronization of satellite time

Product Setup SMS Commands


1. Set control number:

Command: Number+pass+blank+serial Sample: 079612223330000 1 07961222333 is mobile number, 0000 is password, 1 is serial means the first number. When the tracker reply “SET OK” means the setting is ok. You can set the second and third control number also.


2. Change Password Command:

777+New Password+Old password Sample: 77712340000 The 1234 is new password, and 0000 is old password. When ST-901 received the command, it will reply SET OK


3. Get location with Google link Command:

669+password Sample: 6690000 When ST-901 receives the command, it will read the GPS data, and send back the location with Google link; you can open the link to check the tracker location on maps.


4. Change Time Zone Command:

896+password+Blank+E/W+HH Sample: 8960000 E5.5 (INDIA +5.30) E means East, W means west, 00 mean time zone. Reply: SET OK


5. Over speed Alarm (send Alarm to control numbers) Command:

122+Blank+XXX Sample: 1220000 120 Reply: SET OK The XXX is the speed, from 0 to 999, the unit is KM/H. If the XXX is 0, it means close the over speed alarm.


6. Shock Alarm Command:

(send SMS alarm to the first number) Open Shock Alarm: 181+password+T Sample: 1810000T10 Reply: SET OK The T meaning shocking time, the unit is second, It from 0 to 120 seconds. Close Shock Alarm: 180+password Sample: 1800000 Reply: SET OK


7. Set APN

Command 1: 803+password+Blank+APN Sample: 8030000 Reply: SET OK 8/10 If your APN need user and pass:

Command 2: 803+password+Blank+ APN+Blank+ APN user+Blank+ APN pass Sample: 8030000 giffgaff giffgaff password Reply: SET OK


8. Set the IP and Port Command:

804+password+Blank+IP+Blank+Port Sample: 8040000 8090 Reply: SET OK 9. RESTART The tracker will restart. 10. RCONF Read the configure of tracker

9 Ignition On Command:

Command 1: (send SMS alarm to the first number) Open Ignition On Text Command Alarm: 886+password Sample: 8860000 Reply: SET OK Close Ignition On Text Command Alarm: 887+password Sample: 8870000 Reply: SET OK

Command 2: (send SMS alarm to the first number) Open Ignition On Call Command Alarm: 888+password Sample: 8880000 Reply: SET OK Close Ignition On Call Command Alarm: 889+password Sample: 8890000 Reply: SET OK