GWSD100 type mine mine GWSD100/100 temperature and humidity sensor temperature and humidity sensor is controlled by a microcontroller smart composite type sensors. The sensor is intrinsically safe circuit design, suitable for coal mine or on the ground in potentially explosive environments, capable of mines or mining area into the face, back to the wind, temperature and humidity for continuous testing. The sensor uses imported sensing element, with high sensitivity, good stability, wide measuring range, good compatibility and nonlinear correction, LCD and so on. Main Specifications Measuring range: Temperature: 0 ~ 100 ℃, Humidity: 0 ~ 100% RH. Basic error a) shows the error of ≤ ± 2.5% (FS); humidity ≤ ± 8 (FS). b) output error ≤ ± 2.5% (FS); humidity ≤ ± 8 (FS). Major electrical performance Operating voltage: 9V ~ 24V DC; Working current: ≤ 100mA DC. Maximum transmission distance: sensors and associated equipment, the maximum transmission distance of 2km (required MHYVR type mine communication cable, cross-section of not less than 1.5mm2, R = 12.8Ω/km, C ≤ 0.06uF/km, H ≤ 800uH/km, and the associated device's display value or the value of the output signal converted to temperature, humidity values ??should be consistent with the provisions of 4.4.2). Output signal system (two formats available remote transmitter switching): frequency signal types: (constant-current pulse) 200 ~ 1000Hz; pulse width ≥ 0.3ms, "1" is not less than 4mA, "0" is not greater than +0 .2 mA. (Load resistance 0 ~ 600Ω) digital signal types: (constant-current pulse) 1200bps; "1" is not less than 4mA, "0" is not greater than +0.2 mA. (Load resistance 0 ~ 600Ω) Jining Branch-Mining Equipment Co., Ltd. Contact: Lv