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TrueLevel CNCSolid state digital monitor for CNC machine coolant sumps Replaces float based level sensors with a no moving parts digital level + dual zone temperature sensor. Drives an existing tramp oil skimmer on a computed schedule. Visible across a noisy shop floor via a 450 lumen RGB light bar. Installs in 30 minutes no drilling, no machine downtime, no subscriptions. What it does that a float sensor cant Solid state level sensing no moving parts, nothing to

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product description

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Solid-state digital monitor for CNC machine coolant sumps

Replaces float-based level sensors with a no-moving-parts digital level + dual-zone temperature sensor. Drives an existing tramp-oil skimmer on a computed schedule. Visible across a noisy shop floor via a 450 lumen RGB light bar. Installs in 30 minutes — no drilling, no machine downtime, no subscriptions.

What it does that a float sensor can’t

Solid-state level sensing — no moving parts, nothing to jam on long stringy chips, sludge, or tramp-oil layers. Measures the fluid body itself, so it works equivalently with oil-based and water-soluble coolants.
Dual-zone temperature — one probe at the top of the tank (cutting-zone hot return), one at the bottom (cold bacterial zone). A divergence between the two is useful signal on its own.
450 lumen RGB light bar — color, position, and pulse pattern encode multiple metrics simultaneously. 180° viewing angle, readable across a crowded shop floor.
4-line LCD on a magnetic mount — attaches anywhere ferrous on or near the machine. Shows level, both temperatures, skimmer status, alarm history.
Smart Skimmer Control (Standard + Skimmer Output) — relay output with current-transformer feedback drives an existing tramp-oil skimmer on the controller’s computed schedule, not a dumb timer.
Haas factory-port harness — drops into the stock Haas float-sensor connector. Existing Haas alarm / low-coolant logic sees TrueLevel like it sees the OEM float.
You buy it. You own it. — no subscriptions, no SaaS license, no recurring fees, no cloud dependency. Sensor, controller, and light bar communicate locally.

Compare editions

Included	Standard	Standard + Skimmer Output
Solid-state digital level sensor	✓	✓
Dual-zone temperature monitoring	✓	✓
450 lumen RGB light bar	✓	✓
4-line LCD controller, magnetic mount	✓	✓
Universal DC harness	✓	✓
Haas factory-port connector option	✓	✓
Skimmer relay output + Current Transformer	—	✓
Direct connection to stock Haas float-sensor connector	—	✓

Pricing for each edition is in the right panel above. Pick the Skimmer Output edition if you have an existing tramp-oil skimmer to drive on the controller’s computed schedule.

Specifications

Sensor length: 9 in (22 cm)
Tank depth range: 2–9 in (5–22 cm)
Power: 12 V DC (24 V DC optional)
Display: 4-line LCD, 20 characters per line
Light bar: 450 lumens, 180° viewing angle, 50,000+ hour lifespan
Sensor body: synthesized nylon
Cord: 7.32 ft (2.23 m) retractable coil
Coolant compatibility: oil-based, water-soluble, synthetic
Machine compatibility: mills, lathes, grinders with a sump; 12 V DC tramp-oil skimmers (Skimmer Output edition)
Mounting: clip-mount sensor at the sump; magnetic LCD anywhere ferrous

FAQ

How does this sensor not jam on aluminum chips?

The sensor is fully solid-state — no moving parts, no float. There is no physical mechanism for long stringy chips, sludge, or tramp-oil layers to jam. It measures the fluid body itself electrically.

Are there any monthly subscription fees?

No. TrueLevel CNC is sold under a strict “You Buy It. You Own It.” model. Zero recurring fees, no SaaS subscription, no cloud account required. The device runs entirely locally.

Will it mount easily to my specific machine tool?

Installation takes about 30 minutes, requires no machine downtime, and involves no drilling. The sensor uses a heavy-duty clip-mount at the sump; the LCD controller uses a magnetic mounting plate that attaches anywhere ferrous on or near the machine.

Can it connect back to my Haas controller?

Yes. The included harness has an option for direct, factory-style connection into the stock Haas float-sensor port. Existing Haas alarm and low-coolant logic sees TrueLevel as if it were the OEM float sensor.

Will this work with oil-based and water-soluble coolants?

Both. Because the sensor is solid-state and measures the fluid body itself, it works with oil-based, water-soluble, and synthetic coolants without recalibration.

Can it run my existing tramp-oil skimmer?

Yes — the Standard + Skimmer Output edition includes a relay output with a current-transformer feedback loop. It actuates your existing skimmer motor on the controller’s computed schedule, not a dumb timer.

How does this save a shop money?

Primarily by reducing scrapped parts. When coolant runs hot, it stops displacing heat at the cutting zone — the part heats up, expands, and a tight-tolerance finishing pass comes out of spec after it cools. Catching the temperature spike on the RGB light bar before the finishing pass lets the operator pause, rebalance, and save the part.

Through-spindle-coolant only — no sump. Will this work?

No. TrueLevel monitors a coolant sump. Machines running exclusively through-spindle coolant at 1000+ psi without a sump are not the target use case.

What does the warranty cover?

1-year parts and labor from date of purchase. Ticket-based support is direct from the manufacturer in NC and continues at no charge after the warranty period.

Do you ship internationally?

U.S. shipping ships from Pittsboro, NC. International orders are case-by-case — request a quote with destination and Incoterm.

Compliance & origin

Origin: Designed and assembled in Pittsboro, North Carolina, USA.
Sensor body: synthesized nylon, sized to survive a chip-heavy sump.
Light bar: 50,000+ hour rated lifespan.
Field-installed by: the included owner’s manual is written for an industrial maintenance technician or competent installer.
Warranty: 1 year parts and labor from date of purchase.
Support: ticket-based support direct from the people who built the hardware — open a ticket.

Installation

Power off the machine at the disconnect; pop the coolant tank lid.
Clip-mount the solid-state sensor at a clear point in the sump, away from heavy chip return paths.
Magnetically mount the 4-line LCD anywhere ferrous on or near the machine where the operator can see it.
Mount the RGB light bar high enough to be visible from operator stations across the cell.
Run the DC harness from the controller to a 12 V supply on the machine. Haas: drop the harness’s factory-port connector into the stock float-sensor port.
(Skimmer Output only) wire the relay leads to the motor terminals of your existing tramp-oil skimmer; clip the current transformer around the same lead.
Power on, verify level and dual-zone temperature on the LCD; confirm the light bar reflects current state. The owner’s manual walks every step.