The Siemens 6GT2810-2AG80 is a SIMATIC RF680L SmartLabel — a UHF RFID tag built for the RF600 reader system. It operates across 860 to 960 MHz, covering global UHF bands including EPC Class 1 Gen 2 and ISO 18000-6C. The NXP G2XM chip inside gives you 64 bytes of user-rewritable memory plus EPC memory at 240 bits, with lock, unlock, kill, write-protect, and password-protect features. That 64-byte block is where you store lot numbers, date codes, or process-step data that stays with the asset through its life. Physically it's a paper tag, beige, 86 x 54 mm with a thickness of just 0.3 mm — essentially a heavy label. It mounts by gluing or screwing, and comes on a roll of 1000 units (minimum order quantity 1000). The IP67 rating means the tag body and its internal antenna survive washdown and dust ingress, so it's suited for returnable containers, pallets, or tooling that cycles through wet cleaning stations.
Heat resistance — the main event
What separates the RF680L from a standard adhesive tag is its thermal profile. Outside the read/write area it survives -40 to +230 °C, and during read/write access it handles -25 to +85 °C. The operating temperature is permanent up to 85 °C, but it can take 200 °C for 6 hours, 220 °C for 1 hour, and short-term spikes up to 230 °C. That means it stays on the part through powder-coating ovens, paint-cure cycles, or autoclave passes — the tag is readable again once it cools below the read/write temperature window. The silicon-free construction is relevant for paint-shop and coating-line applications where silicone contamination causes fisheyes or adhesion failure.
Read range and system context
The listed read range is up to 4 m, but Siemens explicitly notes this is reader-dependent and overrange is possible — the system manual (RF600) gives the real-world figures for a given reader and antenna setup. The tag is multi-tag capable and transfers data at up to 320 kbit/s over the air, which is the standard UHF Gen 2 rate. It's designed for the RF600 reader family, so if you're on an RF200 or RF300 system this tag won't communicate — the RF600 operates in the 860-960 MHz UHF band while the lower-frequency readers use HF (13.56 MHz).