W255921 is a high-performance, handheld thermal Calibrator device, it can output measurement mV voltage, resistance signals, but also can simulate eight and four thermal resistance thermocouple output. Can be assigned to thermocouple (S, R, B, K, N, E, J, T) and thermal resistance (Pt100, Pt10, Cu100, Cu50) temperature measurement. It also has data storage functionality. Features: Portable, large-screen, the Chinese character display; can output temperature signal can be measured temperature data storage functions with low power consumption, measuring more than 150 hours of work sustainable, sustainable Maximum output of more than 10 hours Specifications: BK18CST3005G signal measurement indicators (20 ℃ ?10 ℃) Measurement signal types Range of Resolution Accuracy Voltage (-150.000 ~ 150.000) mV 1μ V ?(0.02% RD +0.005% FS) Two-wire resistance (0 ~ 400.000) Ω 1m Ω ?(0.02% RD +0.01% FS) Three wire system (0 ~ 400.000) Ω 1m Ω ?(0.02% RD +0.01% FS) 4-Wire (0 ~ 400.000) Ω 1m Ω ?(0.02% RD +0.005% FS) ◆ BK18CST3005G technical indicators signal output (20 ℃ ?10 ℃) Output signal types Range of Resolution Accuracy Voltage (-10.000 ~ 100.000) V 1μ V ?(0.02% RD +0.01% FS) Resistance (0 ~ 400.000) Ω 1m Ω ?(0.02% RD +0.01% FS)