B&K Precision 627 Carbon Monoxide (CO) Meter and D is the horizontal

and D is the horizontal distance from front to back

RIGOL DS1074Z-S Digital Oscilloscope Package Contents:

Output impedance: 50 Ω

A cooling fan helps prevent overheating

B&K Precision 627 Carbon Monoxide (CO) Meter and D is the horizontalCE Mark approval; portable and simple one hand operation Display back light With max data hold function Handheld lightweight design 1 Year warranty Carbon Monoxide Meter. CE mark approval. Portable and simple one hand operation. Display back light. With max data hold function. Handheld lightweight design. Wide CO measuring range of 0 to 1000PPM. Display: 3 1 2 digit liquid crystal display (LCD) with a maximum reading of 1999. Polarity: automatic,