Sper Scientific, Ltd. Sound Level Pen
The Sper Scientific 840018 Sound Level Pen is a compact, pen-style sound level meter designed for quick and convenient sound measurements in a variety of environments. It measures sound levels from 40 to 130 dB with an accuracy of ±2 dB and features both A and C frequency weightings. The device includes a MAX hold function, data hold, and a backlit LCD display for easy reading in low-light conditions. Its slim, lightweight design allows for easy portability and one-handed operation, making it suitable for industrial, educational, and general noise monitoring applications. The 840018 is powered by two AAA batteries and comes with a windscreen and carrying case.