Campbell Scientific (Canada) Corporation

(A2LA Cert. No. 4227.01) Revised 10/18/2025 Page 2 of 3 II. Optical Quantities Parameter/Equipment Range CMC2, 5 (±) Comments Irradiance – Measuring Equipment (285 to 3000) nm Wavelength >500 W/m 2 Irradiance 0.82 % 1.5 % 1.6 % MS-80 CMP21 SR30-M2-D1 III. Thermodynamic Parameter/Equipment Range CMC 2, 4 (±) Comments Relative Humidity – at 23 °C (10 to 80) % RH 0.0072 (% RH/% RH) + 0.23 % RH Using chilled mirror hygrometer IV. Time & Frequency Parameter/Equipment Range CMC2, 5 (±) Comments Frequency – Measuring Equipment 1 Hz to 300 kHz 29 mHz/kHz + 22 mHz BK Precision 4054B Frequency – Measure 40 Hz to 2 kHz 0.056 mHz/Hz + 33 mHz Keysight 34465A, Keysight 34410A ___________________________________________ 1 This laboratory offers commercial calibration service. 2 Calibration and Measurement Capability Uncertainty (C MC) is the smallest uncertainty of measurement that a laboratory can achieve within its scope of accreditation when performing more or less routine calibrations of nearly ideal measurement standards or nearly ideal measuring equipment. CMCs represent expanded uncertainties expressed at approximately the 95 % level of confidence, usually using a coverage factor of k = 2. The actual measurement uncertainty of a specific calibration performed by the laboratory may be greater than the CMC due to the behavior of the customer’s device and to influences from the circumstances of the specific calibration. 3 This scope meets A2LA’s P112 Flexible Scope Policy.

(A2LA Cert. No. 4227.01) Revised 10/18/2025 Page 3 of 3 4 The stated measured values are determined using the indicated instrument (see Comments). This capability is suitable for the calibration of the devices intended to measure or generate the measured value in the ranges indicated. CMCs are expressed as either a specific value that covers the full range or as a percent or fraction of the reading plus a fixed floor specification. 5 The type of instrument or material being calibrate d is defined by the parameter. This indicates the laboratory is capable of calibrating instruments that measure or generate the values in the ranges indicated for the listed measurement parameter.