Extech EN300 环境仪表/温湿度计

rugged 5-in-1 environmental meter with tripod mount and rs-232 pc interface large dual lcd simultaneous display of temperature and air velocity or relative humidity characters on display reverse direction depending on hygro-thermo-anemometer or light-sound mode data hold, min/max, auto power off, low battery/overrange indication built-in low friction vane wheel improves accuracy of air velocity in ft/min, mph, m/s, km/h, and knots built-in precision thin-film capacitance humidity sensor for fast response built in thermistor for ambient temperature measurements type k input measures temperature to 2372° (1300°c) utilizes precision photo diode and correction filter for cosine and color corrected light measurements sound level measurement meets iec 61672 class 2 using a frequency weighting and fast response time

the extech en300 hygro-thermo-anemometer-light-sound meter measures humidity, temperature, air velocity, light and sound. the large dual lcd simultaneously displays temperature and air velocity or relative humidity. characters on display reverse direction depending on hygro-thermo-anemometer or light-sound mode. built-in precision thin-film capacitance humidity sensor for fast response and a thermistor for ambient temperature measurement. it utilizes precision photo diode and correction filter for cosine and color corrected light measurements. type k input measures temperature to 2372° (1300°c) using an optional type k probe. sound level measurement meets iec 61672 class 2.

specification en300 measurement range resolution basic accuracy air velocity ft/min (feet per min.) 80 to 5910 ft/min 1ft/min ±3% m/s (meters per sec.) 0.4 to 30m/s 0.1m/s km/h (kilometers per hr.) 1.4 to 108km/h 0.1km/h mph (miles per hour) 0.9 to 67mph 0.1mph knots (nautical miles per hr.) 0.8 to 58.3 knots 0.1knots light foot candles 0 to 1860fc 0.1fc ±(5% rdg + 8 digits) lux 0 to 20,000lux 1lux ±(5% rdg + 8 digits) humidity % relative humidity 10 to 95%rh 0.1%rh ±4%rh of reading temperature thermistor 32 to 122°f 0.1°f ±2.5°f 0 to 50°c 0.1°c ±1.2°c type k -148°f to 2372°f 0.1°f ±(1%+2°f) of reading -100°c to 1300°c 0.1°c ±(1%+1°c) of reading sound sound 35 to 130db 0.1db ±1.4db frequency 31.5 to 8,000hz weighting/response a weighting/fast response

included items
	1 type k thermocouple probe 1 pouch case 6 aaa batteries 1 manual

本产品的品牌是extech，型号是EN300，加工定制是否