A two pen, 10" circular chart, temperature recording controller with four switches, providing dual on-off control for heat-cool applications on each pen or heat-cool-humidity applications. Available with 12, 24, or 48 hour, or 7 day rotation times for 125VAC, 60 Hz operation, and others. Seventeen operating ranges covering -30ºF to 1100ºF. Can be panel or surface mounted.
 
 

Dual setpoint indicators: red, green	1% Sensitivity (hysteresis)
Disposable fiber tipped pens: red, green	SPDT switches: 500VA resistive, 50VA inductive; 250VAC max.
0 to 5% Differential between switches	0.5% Sensitivity (hysteresis)  (optional)