Concrete Cover Meter Manufacturer,Supplier and Exporter in India
Product Code : EL-CL-8850
Jlab Export is a leading Concrete Cover Meter Manufacturer,and suppliers in India
A cover meter finds the steel bars inside hardened concrete and measures the depth of concrete over them. This one works by electromagnetic induction through a hand probe on a cable. An on-screen gauge and an audio signal pinpoint where each bar lies and which way it runs. Bar size can be preset, or the meter finds it.
Specifications
| Measures | Concrete cover, bar location and orientation, bar size |
| Cover accuracy | ±1 mm to 60 mm, ±2 mm to 120 mm, ±3 mm to 160 mm, ±4 mm over 160 mm |
| Bar sizing accuracy | ±0.5 mm to ±1.5 mm |
| Resolution | 0.1 mm |
| Operating depth | 6 mm bar up to 60 mm cover, 40 mm bar up to 80 mm cover |
| Minimum spacing to resolve bars | 70 mm for 16 mm bars at 60 mm cover, 110 mm for 16 mm bars at 100 mm cover, 150 mm for 25 mm bars at 130 mm cover |
| Weight | 800 g |
| Battery life | 20 h |
| Supplied with | Probe with integral cable, battery charger, spare probe sole plate, equipment bag |
| Minimum order quantity | 1 unit |
| Dispatch time | Usually 7–10 working days |
| Manufacturer | JLab (Jain Laboratory Instruments Pvt Ltd), Ambala, India |
How the Meter Reads a Bar
The probe sets up an alternating magnetic field in the concrete. A steel bar in that field changes the signal the probe picks up, and the change is stronger when the bar is nearer or larger. With the bar size known, the meter turns signal strength into a cover depth. For non-standard bars, large pipes or other built-in items, it can show an absolute reading to look up in a table made for that item.
Cover Survey Exercises for Civil Students
Students cast a small reinforced beam in Beam Moulds with bars set at a known cover, then survey it after curing. They mark each bar with chalk, record the cover on a grid and compare the readings with the cover they built in.
A second exercise shows bar spacing: two bars placed close together read as one until they are far enough apart for the meter to separate them. The same member can be tested with a Rebound Hammer on a grid that avoids the bars, since a blow over a shallow bar gives a high reading.
Frequently Asked Questions
Do I need to know the bar size?
It helps. A larger bar gives a stronger signal, so the meter needs the bar size to work out cover. Preset it if it is known from the drawings, or let the meter detect it during a survey.
How deep can it measure cover?
Cover is read to ±1 mm up to 60 mm, ±2 mm up to 120 mm, ±3 mm up to 160 mm and ±4 mm beyond that. Bar sizing works for a 6 mm bar up to 60 mm cover and a 40 mm bar up to 80 mm cover.
How close can bars be and still be read separately?
At 60 mm cover, 16 mm bars can be told apart at 70 mm spacing. At 100 mm cover they need 110 mm, and 25 mm bars at 130 mm cover need 150 mm. Closer bars read as one.
Can it find pipes or other embedded items?
Yes, by showing an absolute reading instead of a cover figure. Build a table for the item by reading it at known depths, then use that table to look up its cover on site.
What comes with the meter and how long does the battery last?
The meter weighs 800 g and runs about 20 hours on its battery. It comes with the probe and its integral cable, a battery charger, a spare probe sole plate and a carrying bag.
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Last updated: 6 November 2026
