set alarm 2:50 for sale, brand-new and used.

Portable FORMALDEHYDE (HCHO) 5ppm DATALOGGER Monitor Online 64K Logging Memory

Note: we'll ship this item via Epacket to US, usually the delivery time is about 3 weeks;

Note: we'll ship this item via Epacket to US, usually the delivery time is about 3 weeks;

This data logger measures and stores up to 32,000 humidity(0 to 100%RH) and temperature(-35 to 80C(-31~176F)) readings. Dew point and more professional applications can be provided by the PC software DGraphTM. Logger status, alarm indication and low battery indication are via flashing red/green LED and yellow LED.

Note: we'll ship this item via Epacket to US, usually the delivery time is about 3 weeks; For other countries, we'll ship it via registered air mail of Post,

Note: we'll ship this item via Epacket to US, usually the delivery time is about 3 weeks; For other countries, we'll ship it via registered air mail of Post,

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PM9801 Digital Power Meter Product features: l Four windows LED display, voltage, current, power, power factor/frequency at the same time

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Brand New ETCR9500C Three-Channel Wireless HV CT Ratio Tester Meter

Product Description Electrical Properties:

gainexpress   This Carbon Dioxide (CO2) Monit

I have no way to test this unit thus sold as is with no warranty or returns. the following info is from the manufacturers website:AIR SYSTEMS MODEL INTERNATIONAL BB50-CO CARBON MONOXIDE AIRLINE MONITOR BB-50-CO MODEL: BB-50-CO TYPE: CARBON MONOXIDE AIRLINE MONITOR MANUFACTURER: AIR SYSTEMS INTERNATIONAL, INC. The monitor will analyze the air sample and display the CO concentration in parts per million (ppm).

BW Honeywell GasAlert Clip Extreme H2S Monitor GA24XT-H Our customers love the GasAlert Clip Extreme H2S Monitor because it's one of the easiest and most affordable H2S monitors on the market. This detector requires no maintenance (no need to change sensors or batteries). Once you turn on the Honeywell's BW GasAlert Clip Extreme, it will run for two full years as a diffusion monitor to continuously check its environment for H2S.