We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Handheld digital carbon monoxide meter R9400 with dual LCD display

REED INSTRUMENTS

REED INSTRUMENTS R9400 Carbon Monoxide Meter with Temperature measurement tool

SKU CH-AZ6D-G1QEC MPN R9400

A digital carbon monoxide meter that simultaneously displays CO levels and ambient temperature on a dual LCD

  • Analog/DigitalDigital
  • TypeCarbon Monoxide Meter
  • Dual LCD shows CO and temperature together
  • Digital meter measures carbon monoxide levels accurately
  • Simultaneous display enables quick safety checks
  • R9400 model designed for professional test applications

Dual-display CO meter

The REED Instruments R9400 is a digital carbon monoxide meter that shows CO concentration and ambient temperature at the same time on a dual LCD. It is designed for technicians and safety personnel who need immediate, simultaneous readings in the field.

Suits spot-checking CO and temperature

This tool suits anyone who needs a single instrument for quick CO checks alongside temperature data. It is not for users who require data logging, alarm thresholds, or multi-gas detection capabilities.

Highlights

  • Dual LCD shows CO and temperature together
  • Digital meter measures carbon monoxide levels accurately
  • Simultaneous display enables quick safety checks
  • R9400 model designed for professional test applications

Specifications

BrandREED Instruments
ModelR9400
Analog/DigitalDigital
TypeCarbon Monoxide Meter

Questions about this item

What power source does the R9400 require to operate?

The meter runs on a standard 9 V battery, which must be installed before first use.

Can the R9400 share a test lead or probe with an older multimeter?

No, the R9400 uses its own built-in electrochemical CO sensor and internal temperature probe; it does not accept external test leads.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.