EXTECH CO250 Digital Portable CO2 Meter[27 Jan. 2012, 2:46:50]
Keterangan
Features:
⢠Checks for Carbon Dioxide ( CO2) concentrations
⢠Calculates statistical weighted averages of TWA ( 8 hour time weighted average) and STEL ( 15 minute short term exposure limit)
⢠Maintenance free NDIR ( non-dispersive infrared) CO2 sensor
⢠Measurement ranges:
o CO2: 0 to 5, 000ppm
o Temperature: -14 to 140° F ( -10 to 60° C)
o Humidity: 0.0 to 99.9%
⢠User programmable audible alarm
⢠Backlit triple LCD display
⢠Built-in RS-232 interface for capturing readings on PC
⢠Data acquisition software and cable included to record and document CO2, Humidity and Temperature data
⢠Optional 33% and 75% RH calibration bottles
⢠Complete with software and cable, 4 AA batteries, and carrying case