IDTS-D20 20mm Round PCB On-Metal UHF RFID Tag, 3.5m on Metal, Screw-Mount Asset & Tool Tracking

The IDTS-D20 is a compact passive UHF on-metal RFID tag from IDentium, built as a 20 mm round PCB disc with a raised black dome at the centre. It is made for the metal assets that fill Indian plants, workshops and utility yards - hand tools, panels, valves, jigs and IT hardware - where a paper label or a plain inlay simply will not read. Two 3.2 mm mounting holes let it be screwed or riveted straight onto the asset, and its rated operating range of -20 C to +150 C suits equipment that sees heat as part of normal service.

Key Specifications

• SKU: IDTS-D20 (IDentium / India RFID Store)
• 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
• Air interface protocol: ISO18000-6C
• Chip: U8 (as specified)
• Memory: EPC 128 bits, TID 96 bits
• Read range: approx. 3.5 m on metal
• Anti-metal: Yes - designed to be mounted on metal surfaces
• Material: PCB
• Substrate class: PCB
• Shape: Round disc, 20 mm diameter
• Dimensions: 20 mm x 20 mm x 4 mm - thickness measured at the highest point, as the disc carries a raised black dome at its centre
• Mounting holes: Two holes of 3.2 mm diameter, hole spacing 14.5 mm
• Colour: Black
• Operating temperature: -20 C to +150 C (extended range up to +150 C)

Applications

• Tool cribs and calibration control: spanners, torque wrenches, press tools and gauge bodies with enough flat metal for a 20 mm disc and a two-screw fixing.
• IT asset audits: server racks, network switches, UPS cabinets and metal enclosures, where the tag mounts on a chassis face or rack rail for walk-past stock counts.
• Gas cylinder tracking: mounted on the collar or valve guard of industrial and medical cylinders for filling, dispatch and return cycles.
• Utilities and electrical infrastructure: distribution boards, panel doors, meter boxes and transformer bodies for inspection and maintenance rounds.
• Manufacturing tooling: jigs, fixtures, moulds and dies, including tooling that passes through hot process areas within the rated -20 C to +150 C window.
• Railways and rolling stock: identification of metal maintenance components, spares and shop-floor fixtures handled repeatedly.
• Pharma and process plants: stainless equipment, trolleys, change parts and metal bins that need a screw-fixed identity rather than a stick-on label.

Why Choose This Tag

• Built for metal, not merely tolerant of it. This is an anti-metal design intended to be fixed directly to a metal surface, and it delivers approx. 3.5 m on metal - enough for aisle-side and doorway reads rather than touch-and-hope scanning.
• Small footprint, real estate friendly. A 20 mm disc, 4 mm thick at the dome, fits on tool shanks, panel faces, valve guards and equipment plates where a large on-metal block will not sit.
• Mechanical fixing, not adhesive alone. Two 3.2 mm holes on a 14.5 mm spacing take a screw or rivet on each side, so the tag stays put on assets that are handled, cleaned and moved daily.
• Wide temperature rating. A rated -20 C to +150 C operating range covers cold stores at one end and hot process zones at the other, so one part number can cover mixed asset fleets.
• Standards-based and reader agnostic. ISO18000-6C with a U8 chip, 128-bit EPC and 96-bit TID memory - it works with the standard fixed and handheld UHF readers already deployed across Indian warehouses and plants.

Read range figures are typical values. Actual performance varies with the reader and antenna used, transmit power, antenna polarisation and orientation, the mounting surface and surrounding metal, and the RF conditions of the site. We recommend a short on-site trial before large deployments.

Frequently asked questions

How far does the IDTS-D20 read on metal?

The IDTS-D20 reads at approximately 3.5 m while mounted on metal, so hand tools, panels, valves, jigs and IT hardware can be counted from a distance. A paper label or a plain inlay would be detuned on the same surface and read poorly or not at all, which is why an on-metal disc is used.

How is the 20 mm disc fixed to an asset?

The IDTS-D20 has two 3.2 mm mounting holes, so it can be screwed or riveted straight onto the asset rather than relying on adhesive that can lift with oil, heat or handling. The 20 mm round PCB disc has a raised black dome at the centre that protects the chip area from knocks.

What temperature can the IDTS-D20 take?

The IDTS-D20 is rated for an operating range of minus 20 C to plus 150 C, which suits equipment that sees heat as part of normal service in Indian plants, workshops and utility yards. The PCB body and screw mounting keep it in place where a printed label would char, curl or peel away.

What is the price and minimum order for the IDTS-D20?

Pricing depends on the quantity and on any custom encoding you need, so check the listed price on this page or request a bulk quote. Identium is a BIS and WPC certified Indian manufacturer offering bulk and OEM pricing on round on-metal tags, trial samples and pan-India shipping.

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