These economical dry heat baths are suitable for test tubes, cuvettes, microcentrifuge tubes and other small containers. Hold up to three insert blocks. Temperature range from 25 to 200°C with stability of 0.1°. Solid state control. Temperature setting is by a calibrated knob/dial in degrees centigrade. Independent pilot lights indicate main power, heater action and over temperature. Digital models have a red LED display. The temperature is set by using the set and up/down buttons. The large LED panel displays both the set point and actual values. For 110V, 50/60 Hz. See 40596 series for inserts..