Vintage TES SL-1350 digital sound level meter in its original protective case, complete with sponge windscreen and Certificate of Calibration dated 1997. This model was commonly used for industrial and environmental noise testing and includes clear controls for range, response speed, max hold, and built-in 94dB calibration.
The unit powers on and is in working condition. However, I cannot confirm whether it remains within calibration. The calibration certificate from A.T.P. Instrumentation Ltd is included for reference.
Marked with two measuring ranges:
Lo = 35–100 dB
Hi = 65–130 dB
Originally supplied to Servoflame Ltd in Leeds, with calibration due in 1998. A great piece for anyone collecting vintage test equipment or looking for a backup sound meter.
Dimensions:
Case size approx. 24 x 14 x 6 cm
Meter length approx. 22 cm