Pattern Approval Certificate – Durridge Electronic Radon Monitor (Model RAD7)

Pattern Approval Certificate – Sensidyne Constant Flow Air Sampling Pump (Model IAQ-Pro)

Pattern Approval Certificate – Sensidyne Constant Flow Air Sampling Pump (Model GilAir-3 / 5)

Pattern Approval Certificate – Sensidyne Constant Flow Air Sampling Pump (Model Gilian 5000)

Pattern Approval Certificate – Sensidyne Constant Flow Air Sampling Pump (Model LFS-113)

Pattern Approval Certificate – Sensidyne Flow Calibration System (Model Gilibrator-2)

Pattern Approval Certificate – Quest Single Toxic Gas Detector (Model ST-90)

Pattern Approval Certificate – Quest 4 in 1 Toxic Gas Detector (Model MC-2000)

Pattern Approval Certificate – Quest Heat Stress Monitor and Nosie Dosimeter (Model QuesTemp Series and NoisePro Series)