[Unit Will Not Power On]
The calculator fails to start or appears completely dead. Calculated Industries' troubleshooting guidance commonly directs users to check or replace the battery and, on applicable models, perform a reset.
Calculated Industries
Repair, Service, and Parts
Acme Revival is an independent repair network that operates separately from the manufacturers whose devices we service. Our independence enables a repair model that exists beyond manufacturer-controlled strategies, while preserving the ability to work with manufacturers where appropriate.
China
Manuf. Location
≈ US $13M
Annual Revenue (est)
Construction Tools
End Use Segment
Calculated Industries, Inc. is a privately held electronics and specialty-tool OEM founded in 1978, focused primarily on professional construction calculators and measuring tools. Its portfolio includes specialized handheld calculators, digital measuring wheels, laser measuring tools, estimating and dimensional-calculation products, and related mobile applications/software, serving construction as well as industrial, real-estate, financial and other professional markets. The company is particularly known for its Construction Master line of construction calculators, which it says has sold more than three million units. Calculated Industries describes itself as designing its products from Carson City, Nevada, while its product documentation indicates overseas production associated with China and historically other Asian locations.
2 Most Seen Failures:
[Battery Failure or Leakage]
Weak, depleted, poorly connected, or leaking batteries can cause loss of power or unreliable operation. Calculated Industries specifically identifies battery leakage as a known form of hardware damage.
[Calculator Lockup or Freeze]
The device becomes unresponsive and stops accepting normal input. Several Calculated Industries models provide a recessed reset control specifically for recovering from a lockup.
[Black Spot on LCD]
A dark or ink-like area develops on the LCD and obscures displayed information. Calculated Industries repeatedly documents black LCD spots as physical display damage that may require repair.
[Cracked or Damaged LCD]
The LCD develops visible cracks or other physical damage, making numbers or symbols difficult or impossible to read. Calculated Industries identifies visible LCD cracking as a recognized hardware damage condition.
[Intermittent or Unreadable Display]
The display becomes difficult to read, incomplete, or unreliable, potentially preventing the user from interpreting calculations. Display-related faults can stem from LCD damage, power problems, or internal hardware faults.
[Keypad or Button Input Failure]
One or more keys fail to register reliably, making numeric entry or specialized calculation functions unusable. The failure may appear as intermittent key response, missed presses, or a completely nonresponsive key.
[Reset/Startup Failure]
The calculator remains nonfunctional even after its reset procedure is performed. Calculated Industries' repair instructions commonly recommend reset followed by a battery check before the unit is considered for service.
[Physical Case or Internal Damage]
Bending, impact, or improper handling can deform the enclosure or damage internal electronic connections. Calculated Industries specifically lists bending and accident-related physical damage among recognized device damage conditions.
1 Acme Revival offers repair, service, and part rebuild opportunities for most Calculated Industries devices.
Connect with a technician.
- 1 Repairs are performed on a best-effort basis. Acme Revival utilizes a network of sophisticated technicians and engineers with diverse service offerings; despite this, factors that influence the repair outcome may ultimately prove unsuccessful. Acme Revival makes no claim that it can, guarantee a repair before your device is sent in for diagnostic evaluation; even then, repair and diagnostic work are not mutually exclusive. Despite well-intentioned quoting, repairs may still prove unsuccessful.
- 2 Per information known, researched and collected by Acme Revival and its systems at time of page publishing (September 23, 2026).
- *Information regarding this manufacturer/brand/organization is estimated with information collected and known to Acme Revival. This information is intended to provide insights into the spotlight entity, however may not be accurate— information is strictly of estimate nature only.
- **The model list shown here may not be an all-inclusive list of the EcoFlow product range. Model list has been derived per information known, researched and collected by Acme Revival and its systems for the US market.
