Smart TPMS — Datasheet

Overview

Overview

SGT Smart TPMS is a wireless tyre-pressure and temperature monitoring system for trucks, buses, trailers and off-road vehicles. Compact valve-stem or band-mount sensors broadcast live PSI and tyre-temperature to an in-cab head unit and to the fleet cloud, while a slow-leak detector catches gradual loss long before the driver feels it on the wheel.

Under-inflation is the single largest cause of premature tyre wear, blowouts and fuel-economy loss in commercial fleets. Smart TPMS pays for itself through reduced tyre replacement, fewer roadside callouts, and 3–5% measurable fuel savings — while making every blowout and every slow leak a managed event instead of a roadside emergency.

• Per-wheel PSI + temperature — every position, every minute, on every axle
• Slow-leak detector — slope analysis over a 15-minute window catches losses of 0.3 PSI/min
• Cab buzzer + warn light — driver knows within seconds, not at the next stop
• Fleet roll-up — manager sees all vehicles, all axles, all alarms in one dashboard

How It Works

1. Valve Sensors — replace the standard valve cap (or band-mount inside the wheel) on each tyre. Each sensor wakes every 30 seconds, samples pressure + temperature, and broadcasts an encrypted RF/BLE packet. Battery life 5–7 years sealed.
2. Receiver + Algorithm — in-cab receiver pairs to all sensors, drives the head-unit display, runs the slow-leak slope detector and high-temperature heuristic locally, and fires the buzzer and warning light when thresholds trip.
3. Fleet Cloud — every reading is uplinked over LTE (or relayed via your existing telematics gateway). The cloud computes per-vehicle health scores, ranks workshops by region, and reports fuel-savings YTD.
4. Driver / Manager Alerts — push to driver phone, push to fleet manager, and an automatic SMS to the nearest workshop with the tyre size and recommended replacement.

Features

• External (valve-cap) or internal (band-mount) sensor options per axle
• Slow-leak detector — flags a leak from a slope of −0.3 PSI/min before pressure drops below the static threshold
• High-temperature alarm — bearing-overheat / brake-drag detection (per-tyre temperature exceeding ambient by > 25 °C)
• Trailer pairing — auto-detects connected trailer sensors when the trailer is hooked up
• Sensor anti-theft — locking sleeve, pairing locked to vehicle VIN
• Fuel-savings report — measured MPG delta vs baseline period, per vehicle and fleet-wide
• Workshop integration — auto-SMS to the geographically nearest partner workshop with tyre size and recommended part
• OTA firmware — head-unit and sensor firmware update over the air

Use Cases

• Long-haul trucking — blowout prevention, fuel-economy gains, tyre-life extension
• Bus & coach fleets — passenger safety, scheduled-route reliability
• Trailer / chassis pools — sensors travel with the trailer, auto-pair when hooked to any tractor
• Mining & quarry trucks — extreme load + heat operation, blowouts cost six figures
• Refrigerated transport — door-open and PSI together protect the cold chain
• Off-road & agricultural — large-diameter tyres where visual inspection misses early loss

Specifications

• Sensor pressure range: 0–14 bar (0–203 PSI) ±1.5%, suitable for cars through heavy commercial
• Sensor temperature range: −40 to +125 °C ±2 °C
• Sensor RF: 433 MHz (regional) + BLE 5.0 for diagnostics, AES-128 link-layer encryption
• Sensor battery: 5–7 years sealed (typical 30-second reporting interval)
• Head unit: 4-tyre or 22-tyre variant, color LCD, 12/24 VDC, IP54
• Fleet uplink: built-in 4G LTE, or relay via existing FMS/telematics gateway (J1939, Bluetooth, RS-232)
• Environmental: sensors IP68, head unit −20 to +70 °C operating, automotive vibration spec
• Certifications: E-mark, FCC, CE, RoHS; UN ECE R141 compliant for class M/N vehicles

Product information

Customisation options

• Sensor type — external valve-cap (5-minute install) or internal band-mount (sealed inside the tyre)
• Wheel count — 4-tyre car/van, 6/10-tyre truck, 22-tyre tractor+trailer, custom layouts up to 38 positions
• Head unit — compact 4-tyre LCD, large 22-tyre color display, or no head unit (driver phone app only)
• Connectivity — built-in 4G LTE, or relay through your Geotab / Samsara / J1939 FMS gateway
• Alert thresholds — fleet-default cold/hot PSI, per-axle thresholds, or load-aware dynamic thresholds
• Trailer mode — fixed-pairing, auto-pair on hookup, or pool mode (sensors registered to trailer-ID)
• Workshop network — your preferred partner workshops, our partner network, or hybrid
• Reporting — daily / weekly / monthly fuel-savings + tyre-cost report, PDF email or CSV / API export

Ordering & lead time

Standard lead time depends on current stock. For volume orders, please contact our team for a structured quote including BOQ, freight, installation and warranty terms.

Support

Engineering support, installation guidance and warranty claims are handled by our customer success team. Reach us at support@sgtsystems.com or via the channels listed on our Contact page.