All Envirotech products  are calibrated soon after manufacture at its own calibration laboratory. This calibration is valid for one year from the date of its calibration. Thereafter, users can get their instruments recalibrated from Envirotech Instruments which has a fully functional - In house calibration laboratory - Envirotech Calibration Laboratory (ECL), which is accredited by NABL for calibration in following disciplines:

1. Electro-Technical (Time)
2. Fluid Flow 
3. Mechanical 
4. Thermal