GAOTek Handheld Carbon Dioxide and Monoxide Detector
Description
Features
· Professional portable meter to check and record indoor air quality
· Big LCD with blue back light to use in dark area
· One touch to display
· Designed with NDIR (non-dispersive infrared) wave guide technology CO2 sensor
· Designed with fast response electrochemical CO sensor
· Programmable warning CO level
· Long time drift compensation on CO2 sensor
· Audible alarm (< 80 dB) threshold setting
· Max, Min, TWA, SETL, average, hold functions included
· Mini USB output to PC download function for data analysis
· 99 points manually recording could be review
· Up to 32000 points auto logging memory
· Housing design surrounds with rails to help Air ventilation for quick and accurate response
· Easy to manually calibrate CO2 at fresh air around 380 to 420 ppm
· Manual calibration is also available for CO
· RH sensor could be calibrated with AZ 33 % / 75 % salt bottle easily
Technical Specifications
| CO2 Range | 0 ppm to 9999 ppm (5001 ppm to 9999 ppm out of scale range) |
| CO2 Resolution | 1 ppm |
| CO2 Accuracy | ± 30 ppm ± 5 % of reading (0 ppm to 5000 ppm), other range are not specified |
| CO2 Response Time | < 30 Sec (90 % step change) |
| CO2 Warm-up Time | 30 Sec |
| CO Range | 0 ppm to 1000 ppm |
| CO Resolution | 1 ppm |
| CO Accuracy | ± 3 ppm for less than 20 ppm,± 5 ppm for less than 100 ppm,
± 10 % of reading for 101 ppm to 500 ppm, ± 20 % of reading for 501 ppm and above |
| CO Response Time | < 60 Seconds (90 % step change) |
| Air Temperature Range | -5 ℉ to 140 ℉ (- 20 ℃ to 60 ℃) |
| Air Temperature Resolution | 0.1 ℉ (0.1 ℃) |
| Air Temperature Accuracy | ± 0.9 ℉ (± 0.6 ℃) |
| Air Temperature Response Time | < 2 mins (90 % step change) |
| Relative Humidity Range | 0 % RH to 99.9 % RH |
| Relative Humidity Range | 0.1 % RH |
| Relative Humidity Accuracy | ± 3 % RH (at 77 °F (25 ℃), 10 % to 90 % RH); others ± 5 % RH |
| Relative Humidity Response Time | < 10 mins (90% step change) |
| Dew Point Temp. (DP) | -4 °F to 139.62 °F (-20 ℃ to 59.9 ℃) |
| Wet Bulb Temp. (WB) | -23 °F to 139.62 °F (-5 ℃ to 59.9 ℃) |
| LCD Size | 1.73 in x 1.02 in (44 mm x 26 mm) |
| Meter Size | 8.07 in x 2.75 in x 2.20 in (205 mm x 70 mm x 56 mm) |
| CO2 Sensor Operating Temperature | -4 °F to 122 °F (-20 ℃ to 50℃) |
| CO Sensor Operating Temperature | -4 °F to 140 °F (-20 ℃ to 60 ℃) |
| Other parameters Operating Temperature | -4 °F to 140 °F (-20 ℃ to 60 ℃) |
| Storage Temperature | -4 °F to 140 °F (-20 ℃ to 60 ℃) |
| Storage RH% | 10 % RH to 90 % RH (avoid condensation) |
| Power Supply | AA x 4 PCS or 9 V adaptor |
| Battery life | > 24 hours (Alkaline Battery) |
| IP Rating | > IP 40 |
| Weight | 0.441 lb. (200 g) |