IDTS-D38 UHF On-Metal RFID PCB Tag 38 x 34 x 3 mm Round Disc for Tool & Equipment Tracking

The IDTS-D38 is a passive UHF on-metal RFID tag built on a PCB substrate in a compact round disc format. It measures 38 mm across the mounting flanges, 34 mm across the inner disc body and 3 mm thick, with two φ3 mm holes on opposite sides for mechanical fixing. Because it is an anti-metal design, it is intended to be fitted directly onto metal assets and still deliver a read range of approx. 2 m on metal. With an operating range of -20 C to +150 C, it is aimed at Indian plant, workshop and depot environments where tags sit on machinery, tooling and equipment rather than on cartons or labels.

Key Specifications

• SKU: IDTS-D38
• Product type: UHF on-metal (anti-metal) RFID tag
• Frequency: 860-960 MHz (global UHF band); India operates in the 865-867 MHz de-licensed band
• Protocol: ISO18000-6C
• Chip: U8 (as specified)
• EPC memory: 128 bit
• TID memory: 96 bit
• USER memory: none
• Read range: approx. 2 m on metal
• Overall diameter: 38 mm across the mounting flanges
• Inner disc body: 34 mm
• Thickness: 3 mm
• Mounting holes: two holes, φ3 mm, on opposite sides
• Material: PCB
• Shape: round disc
• Colour: black (dark green PCB)
• Operating temperature: -20 C to +150 C
• Anti-metal: yes, designed for mounting on metal surfaces

Applications

• Tool cribs and returnable tooling - spanners, torque tools, fixtures and kits issued and returned shift by shift, where the 38 mm disc footprint fits on a tool body or holder.
• Plant and maintenance asset registers - motors, pumps, gearboxes, compressors and valve bodies that need a permanent, screw-through identity on the metal casing.
• IT asset audits - server chassis, network switches, UPS units and rack hardware, where a small on-metal disc reads without opening the rack.
• Gas and LPG cylinder identification - cylinder collars and fittings that need a compact metal-mount tag rather than a large plate tag.
• Dies, moulds, jigs and fixtures in manufacturing, including movement through hot process areas within the stated -20 C to +150 C operating range.
• Utility and electrical assets - distribution panels, meter enclosures, feeder pillars and transformer housings on inspection and audit rounds.
• Railway depots and pharma facilities - equipment boxes, track-side enclosures, stainless trolleys, bins and process equipment that carry a metal mounting point.

Why Choose This Tag

• Built for metal, not adapted to it. The anti-metal construction is what allows approx. 2 m on metal from a disc only 38 mm across - a plain label tag placed on the same asset simply will not perform.
• Wide operating range of -20 C to +150 C, so one part number covers cold stores, ambient warehouses and hot process areas of a plant.
• Two φ3 mm mounting holes on opposite sides give a positive mechanical fix on equipment where a tag has to stay put for the life of the asset.
• ISO18000-6C with 128-bit EPC and 96-bit TID - works with standard UHF handhelds and fixed readers, and the TID gives a second identifier alongside your encoded EPC.
• Compact 38 x 34 x 3 mm round disc that fits on tools, motor housings and rack hardware where a large plate tag has nowhere to sit.

Read range figures are typical values measured on a metal surface. Actual performance in your facility will vary with the reader and antenna used, transmit power, antenna orientation, the mounting surface and the surrounding environment. We recommend a site trial with your own reader before bulk deployment.

Frequently asked questions

What are the dimensions and mounting options of the IDTS-D38?

The disc measures 38 mm across the mounting flanges, 34 mm across the inner body and 3 mm thick, with two 3 mm holes on opposite sides for mechanical fixing. That flat, low profile disc format suits machinery, tooling and depot equipment where a tag has to be bolted or riveted rather than stuck on.

Does it read while fitted directly to metal?

Yes. It is an anti-metal design intended to be fitted straight onto metal assets, delivering a read range of approximately 2 m on metal. Standard paper and label tags detune badly on metal, so an on-metal tag like this is the correct choice for plant, workshop and depot assets in Indian conditions.

What temperature range can it handle?

The IDTS-D38 has an operating range of -20 C to +150 C, so it copes with hot Indian plant floors, workshops and outdoor depots as well as cold storage areas. Because the tag is built on a rigid PCB substrate rather than a flexible label, it also stands up to vibration and everyday mechanical handling.

What is the price and how do I order in volume?

Pricing depends on quantity, so refer to the price listed on this page or send us your requirement for a bulk quote. Identium is a BIS and WPC certified Indian manufacturer, offering bulk and OEM pricing, custom encoding of asset IDs, samples for trial and delivery across India and overseas.

Related guides & resources

• Browse all RFID PCB and Ceramic Tags
• Read: choosing on-metal RFID tags
• Read: RFID for manufacturing & WIP tracking
• Manufacturing case study: manufacturing case study