Tramex calibration check plate for CM series concrete moisture meters
A reference plate that lets you confirm a non-invasive concrete moisture meter is reading correctly before you rely on it.
Fitment
- Tramex CME5 Concrete Moisture Encounter
- Tramex CMEX5 Concrete Moisture Encounter X5
- Tramex CME4
- Tramex CMEX2
Why a non-invasive meter needs checking more than a pin meter does
A pin meter tells you when it is broken — the reading goes to zero or refuses to settle. An impedance scanner does not. It keeps producing plausible numbers after a knock, and the only way to know is to put it on a known reference. If your readings are going into a flooring decision, check the meter at the start of the job and note that you did.
The equivalent for the moisture encounter range is the ME5 calibration check box; for MRH series meters it is the MRH3 calibration check box.
Why check, and when
These instruments do not drift dramatically – they drift quietly. A meter that has been dropped, left in a hot vehicle, or simply worked hard for a couple of years can read consistently and still read wrong, and nothing on the display tells you. A check before a job whose readings go into a report, an insurance claim or a compliance certificate costs a minute and protects the reading you are prepared to sign your name to.
A check box confirms the meter reads correctly. It is not a calibration adjustment – if a meter fails its check, it needs to go back for service.
Which calibration check suits which meter
| Check device | For |
| CALBOXME5 check box | ME5 Moisture Encounter |
| CALBOXSMM5 check box | SMM5 Skipper 5 |
| MRH series check box | MRH series, including MRH3 |
| CALCRH check plate | CM series concrete meters – CME5, CMEX5 |
| Calibration check plugs, set of 3 | Pin-type meters |
| SAL75 75% salt check | Hygro-i2 relative humidity probes |
Impedance meters and RH probes are checked differently. An impedance meter is verified against a reference box or plate of known value; an RH probe is verified in a sealed salt chamber at a known humidity. One does not substitute for the other, and a meter that takes RH probes needs both.
Tell us which meter you are checking and we will confirm the right device before you order.
Tell us which meter you run and we will confirm the right accessory before you order.
