Meco environment testing instruments

Listing ID #3985423

Functions MAX / MIN / HOLD, Auto Power Off 
Range 35 dB ~ 130 dB (31.5 Hz ~ 8 kHz) 
Accuracy 1.5 dB ( under reference condition) Resolution 0.1 dB 
Power 9 V Battery 
Models : 920P Humidity & Temperature Meter
C / F / RH Selection MAX / MIN 
Auto Power Off
Range 0% ~ 100% 
RH Accuracy +/- 3% RH (25C, 20 ~ 80% RH) +/- 3.5% RH (At Other Ranges) 
Resolution 0.01C / 0.01F 
Models : 961P Air Flow Anemometer
Functions m / Sec, Ft / min, Knots, Km / h, MPH, CFM, MAX / MIN / HOLD 
Auto Power Off Range 1 ~ 25 m /s 
Accuracy +/- (3% rdg +/- 0.2 m /s) 
Resolution 0.01 m / s 
Models : 930P Digital LUX Meter
Functions MAX / MIN, Backlight 
Auto Power Off Range 0 ~ 200,000 lux 0 ~ 20,000 fc Accuracy +/- 5% rdg + 10 dgt (< 10.000 lux / fc) +/-10% rdg + 10 dgt (>10.000 lux / fc) 
Resolution 0.1 lux or 0.1 fc Selection lux / fc