It may solve the connection problem. Reset the phone: Send number 444 to alarm phone. Record: Send number 555 to alarm phone, begin to record. All you need is a working SIM card (NOT included!). Sound monitoring: Send number 666 to alarm phone.
eBay
MiCODUS 4G GPS Tracker Car Tracking Device MV730G Relay GPS Motorcycle Cut Off Fuel 9-95V Engine On Anti-theft Alarms Free APP
Aliexpress UK
Strong magnetic adsorption, no need to install, built-in strong magnet, direct adsorption and installation, not easy to fall, more convenient to install and use. (Compatible with Micro-USB interface, when the power is lower than 20%, the device will automatically send a low battery alarm to the host to remind charging).
eBay
4G Mini Tracker ST-901L Waterproof Builtin Battery GPS for Car vehicle gps device motorcycle with online tracking software
Aliexpress UK
All you need is a working SIM card (NOT included!). Handheld and vehicle purpose. powerful magnets inside, easy to attach to vehicle firmly, no extra installation need. Small size and light weight, easy for carry.
eBay
SinoTrack Best GPS Tracker ST-901 Vehicle Tracking Device Waterproof Motorcycle Car GPS GSM SMS Locator with Real Time Tracking
Aliexpress UK
Mini and lightweight, do not increase burden to you. Compatible system: for IOS / Android. Oldham Greater Manchester OL9 9XA UK. Products' Images. Battery model: CR2032. Effective Distance: 10-50 m. Bluetooth Version: Bluetooth v4.0.
eBay
Mini Plug Play OBD GPS Tracker Car GSM OBDII Vehicle Tracking Device OBD2 16 PIN Interface China GPS Locator with Software & APP
Aliexpress UK
GSM Band: 850/900/1800/1900Mhz. Reset the phone: Send number 444 to alarm phone. Reboot the phone: Send number 999 to alarm phone, start success after 1 minute. Expansion Card: Mini TF card(NOT included).
eBay
Mini Plug Play OBD GPS Tracker Car GSM OBDII Vehicle Tracking Device OBD2 16 PIN interface china gps locator with Software & APP
Aliexpress UK
Network system: GSM / GPRS. 12,GPRS:Upload60,TCP/IP. Warning: 1. Must insert SIM card before charging. Only for GSM Card, not for CDMA Card. SIM Card is Not Included. Reset phone: send number 444 to alarm phone.
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GPS Tracker Strong Magnetic Car Tracking Anti-Lost Anti-Theft Equipment Mini Portable Precise Positioning GPS Locator
Aliexpress UK
Bluetooth version: Bluetooth 4.0 Low Energy. Suitable for: Wallet, Car, Kid, Pets, Bags,Suitcase or other belongings. ●Locate the parking site on map before leaving from your car, help you trace back no matter how far you go away.
eBay
Mini Car OBD GPS Locator For Apple Find My APP official Ap OBD GPS Voice Monitor Tracker Anti-lost Device Finder Global Position
Aliexpress UK
GSM quad-band systems worldwide. GSM Frequencies:850/900/1800/1900 MHz. Card:ordinary sim card (2G GSM Card)(NOT INCLUDE). An external relay, remote power off the oil function. Avoid being placed with singal radiators like reverse sensor.
eBay
GPS Tracker Strong Magnetic Car Tracking Anti-Lost Anti-Theft Equipment Mini Portable Precise Positioning GPS Locator
Aliexpress UK