Herpstat 4


The Herpstat 4 is our latest thermostat/vivarium controller. We added the much requested grounded outlets to this device as well as a auto dimming control for the lcd which will flash the lcd backlighting along with the audible warning if an error exists. Safety was our goal with this device. We added a mechanical relay that can be enabled to cut the power circuit to all four outlets in case a solid state component fails. Humidity control is also built into this device which can be as simple as timed misting sessions or full humidity control with our optional humidity sensor. We’ve added a soft startup feature to slowly add power on initial starts as well as a user selectable ramping between day and night time temperature settings as well as light ramping. A new revolutionary auto power matching algorithm constantly adjusts the power output to get the best regulation possible. We also added new AC control code that lets the device dim power in 100 steps to be able to finely tune the heating equipment. High and low temperature tracking now also records the time and day of the event. The Herpstat 4 comes with four temperature probes and is ready to go to work right out of the box. There is a lot of features to this device and the menu system makes it easy to set.

3 in stock (can be backordered)

SKU: cw-55 Category:


Four grounded outlets capable of true proportional heating.
Constantly monitors and adjusts amount of heat necessary to maintain a target temperature (Usable range from 40°F to 150°F or 4°C to 65°C). Can also be used in non-proportional (on / off) mode.
Outputs 1 & 2 configurable for Heating/Cooling/Lighting. Outputs 3 & 4 can be configured for Heating/Cooling/Humidity/Lighting with simulated sunrise/sunset and moonlight features.
Humidity control with timed sessions or regulated with an optional sensor.
Safety Relay can disconect power to all four outlets if the an error exists.
Soft startup slowly applies power during initial warmups.
User selectable temperature and light ramping allows day to night changes to occur slowly. (Up to 10 hours)
Sensor Matching allows the user to digitally calibrate the sensor output to match other equipment.
Night Drop feature built in with real time clock allows individual night drop settings for each output.
Cooling function allows control of basic cooling devices.
High / Low temperature tracking helps monitor heating system and enclosure efficiency.
Individually selectable High / Low temperature threshold alarms.
Precision sensors with internal resolution of .1125 °F and is accurate to ± .9 °F
Display and setting in tenths of a degree.
All settings are retained in memory even if power is lost.
Power Outage detection / tracking.
Temperature can be set / displayed in Fahrenheit or Celsius.
Easy to read backlit LCD display.
Removable sensors allow for easy replacement if necessary.
Resettable fuses never require replacement.
Each output is fused separately keeping an outage on one output from affecting the other.
Audible alarm system
Internal error detection shuts off heat if sensor fails or is disconnected.
Internal temperature sensor monitors heat and controls internal fan. Also shuts down outputs if overheated for safety. Restarts automatically once cooled.
Security Passcode option deters vandals.
400 Watt rating for each output (1600 watts total output) sufficient for most incubators, rack systems, enclosures, and vivariums.
1 year limited warranty

Additional information

Weight 3.4 lbs
Dimensions 8.75 × 8.25 × 2.5 in


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