Sensytec vs SmartRock

TL;DR — Which One to Pick

• Pick SmartRock if you pour fewer than ~50 placements a year, your QC manager is on-site, and you need temperature only. Single-use, simple, the device cost gets buried.
• Pick Sensytec if you run a precast plant, do mass pours, or pour at scale (200+ per year). You get a reusable sensor, two signals (temperature + electrical resistivity), 1-mile range to a gateway, a match-cure system for accurate companion cylinders, and a QC module for PCI / NPCA / DOT certified plants.

Side-by-Side

Where Sensytec Wins

Two signals instead of one

SensyCast measures electrical resistivity in addition to temperature. The maturity method gets one strength signal from temperature; resistivity gives an independent second signal that catches calibration drift, mix changes, and unfamiliar admixture behavior. Resistivity at later ages also correlates with chloride-ion penetration resistance, a key durability indicator. SmartRock has only the temperature signal.

Cost per pour at scale

A precast plant pouring 30 beds a week needs sensors that come back at strip. SmartRock is single-use; the device cost recurs every pour. SensyCast is reusable for 3+ years across hundreds of pours, so the per-pour cost drops to a fraction of single-use over the life of the sensor. For high-volume producers, the math is overwhelming.

Range and signal through concrete

Bluetooth at 2.4 GHz struggles to penetrate rebar and concrete. SmartRock works for crews on the slab; for QC managers in the office or at the next bed, the signal often drops. SensyCast's sub-GHz radio reaches a gateway from a mile away and keeps transmitting after the pour is buried, even through dense rebar.

Match-cure pairing

For prestress release and PCI-certified production, accurate companion cylinders matter as much as in-place sensors. SensyCure holds cylinders within 0.79°F of the bed for the full cure. The full Sensytec stack (SensyCast + SensyCure + SensyHub) is built for the precast workflow.

QC module for certified plants

The SensyHub QC Module ships first-class checklist modes for PCI MNL-116, MNL-117, MNL-130, NPCA QCM-001, and state DOT plant certification programs. Drawings, NCRs, batch logs, sticker workflow, audit-ready exports — the sensor is one input to a complete QC operation.

Where SmartRock Wins

SmartRock is genuinely better than Sensytec for some use cases, and we'll say so:

• Low-volume slab and tilt-up. Single-use is the right architecture if you pour two slabs a year. No retrieval, no recharging, no asset management.
• Tie-and-walk-away simplicity. SmartRock's install is the simplest in the category. Hand the sensor to any crew and they can install it.
• Per-unit pricing visibility. Single-use pricing is easy to predict and easy to bill back to a project. No depreciation modeling.
• Brand familiarity in residential / light commercial. Many GCs already use SmartRock for slab-on-grade work. The buying decision is short.

Frequently Asked Questions

What's the main difference?

SmartRock is single-use Bluetooth temperature; SensyCast is reusable two-signal (temp + resistivity) with sub-GHz 1-mile range.

Is SmartRock cheaper?

Per-unit yes. Per pour at scale (200+ pours/year): no — SensyCast's reuse drops cost per pour dramatically.

ASTM C1074 compliance?

Both implement the maturity method. Accuracy depends on calibration, not brand.

Range comparison?

SmartRock: 25–50 ft Bluetooth. SensyCast: ~1 mile sub-GHz to a gateway, transmits through concrete.

Match-cure?

Sensytec's SensyCure pairs natively with SensyCast and SensyHub for accurate companion cylinders — central to precast transfer-strength decisions.