Ohaus Starter ST400D-B 0.01DO Portable Meter Wearable Stereo True Wireless In Ear Headphones LED display and headlight adds

LED display and headlight adds to style

it offers double the power of most home battery stations - at only half the price

The mobile app has universal functions and some that are specific only to particular models

4 inches (D)

Ohaus Starter ST400D-B 0.01DO Portable Meter Wearable Stereo True Wireless In Ear Headphones LED display and headlight addsDescription: The Ohaus Starter ST400D B 0. 01DO Portable Meter is a high performance, low maintenance dissolved oxygen (DO) meter equipped with optical methodology for accuracy. It is designed for both field and lab dissolved oxygen measurement. The meter features a backlit color liquid crystal display (LCD) for easy reading and operation. It is powered by 4 AAA batteries and has a durable ABS housing. The ST400D B offers 99 measurement memory, last