GPS personal tracker Teltonika TMT250 — black, 0.128 GB memory, Li‑Ion 3.8 V, up to 8 h battery

Teltonika TMT250 is a compact autonomous personal GPS tracker combining GNSS, GSM and Bluetooth connectivity in a waterproof IP67 enclosure. Designed for continuous location finding and safety monitoring, the device integrates 0.128 GB of internal memory and a rechargeable Li‑Ion 3.8 V battery that provides up to 8 hours of runtime. With a small footprint and 40 g weight, the tracker is suitable for personal tracking, lone‑worker monitoring and locating portable assets in outdoor conditions. The unit also supports hands‑free operation and Bluetooth‑based firmware and configuration updates.

Advantages

The TMT250 delivers reliable positioning using GNSS and cellular networks while retaining configuration flexibility through Bluetooth. Its IP67 dust- and waterproof housing allows use in demanding outdoor environments. The built‑in memory stores tracking data when connection is unavailable, and the Li‑Ion battery design provides several hours of autonomous operation. The compact size and low weight make it easy to carry or attach to clothing, equipment or collars without affecting mobility. Multiple international certifications ensure compliance with common safety and radio standards.

Suitable for

• Personal safety and location monitoring for individuals
• Lone‑worker tracking and employee safety management
• Pet tracking and collar mounting
• Temporary vehicle or equipment monitoring
• Sporting events and participant location

Key specifications

• Connectivity: GNSS for satellite positioning, GSM for cellular communication, Bluetooth for local access
• Memory: 0.128 GB internal storage for log and event data
• Battery: Li‑Ion battery, nominal 3.8 V, up to 8 hours runtime under typical conditions
• Protection: IP67 dust and water resistance suitable for outdoor use
• Dimensions and weight: compact form factor, small footprint (approx. 43 × 44 mm) and 40 g weight
• Operation modes: autonomous tracking with local storage and transmission when network available

How to use

Charge the device according to manufacturer instructions before first use. Place the tracker where it has a clear view of the sky for optimal GNSS reception, or attach it to a person, pet collar or asset using an appropriate holder. Configure the device via Bluetooth using the compatible Teltonika app or configuration tool to set reporting intervals, alarm thresholds and network parameters. When GSM coverage is present, the tracker will transmit location and status data; when coverage is absent, recorded data is kept in internal memory for later upload.

Recommendations

For best performance, ensure the tracker has periodic access to a cellular network to offload stored data, keep firmware updated via Bluetooth, and mount the device with the antenna area unobstructed. For prolonged deployments, verify charging schedules and consider placement that minimizes impact from heavy water immersion despite IP67 rating.