Celestron Smart DewHeater Controller 2x

BH #CESDHC2X • MFR #94035
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Celestron Smart DewHeater Controller 2x
Key Features
  • Provides Just the Right Amount of Heat
  • Can Heat Two Optics Simultaneously
  • 12V Port for Mount or Other Device
  • LED Status Lights
The Celestron Smart DewHeater and Controller 2x gathers and analyzes information in real time to warm your optics just enough to prevent dew. The device can control two dew heaters at once (one for an optical tube, another for a guide scope, for example) and features an additional 12 VDC output port so you can power another 12 VDC device, such as your mount.
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Celestron 94035 Overview

The Celestron Smart DewHeater and Controller 2x gathers and analyzes information in real time to warm your optics just enough to prevent dew. The device can control two dew heaters at once (one for an optical tube, another for a guide scope, for example) and features an additional 12 VDC output port so you can power another 12 VDC device, such as your mount.

The Smart DewHeater and Controller works seamlessly with Celestron's Dew Heater Rings, which have a built-in thermistor to provide temperature readings of the corrector lens. Third-party dew heater bands or straps are also compatible; you simply need to add Celestron's Thermistor for Smart DewHeater Controllers (sold separately).

  • Using real-time data, the controller provides just enough heat to prevent dew from forming, prolonging battery life
  • "Smart control" system monitors ambient temperature and humidity and adjusts power to the dew heaters automatically
  • Compatible with Celestron Dew Heater Rings and third-party heating bands or straps (with thermistor accessory)
  • Supports up to two dew heaters plus one additional 12 VDC device, such as your mount
  • Works with your Celestron telescope's hand control or CPWI telescope control software so you can view data and make manual adjustments
  • Mounts securely to your telescope's dovetail or tripod leg
  • Durable metal housing features an integrated cooling fan to protect the controller's electronics
UPC: 050234940351

Celestron 94035 Specs

Power
Power Source
Vehicle Adapter
DC Input Power
12 VDC
Physical
Material of Construction
Aluminum
Cable Length
10' / 3 m
Dimensions
5.5 x 4.5 x 3.25" / 14 x 11.4 x 8.26 cm
Weight
1.2 lb / 544.3 g
Packaging Info
Package Weight
2.5 lb
Box Dimensions (LxWxH)
9.6 x 9.3 x 4.4"

Celestron 94035 Reviews

Dew heater works very well

By D M
Rated 5 out of 5
Date: 2026-10-08

This unit is very light and smaller than it looks in the photo - fits perfectly on my C14 and hooked it up to computer control very easily. Just in time as last night dew occurred and this kept the optics clear.

Can adapt to your needs

By Carl
Rated 4 out of 5
Date: 2022-04-15

The 2x DewHeater Cotroller can attach to the mounting rail to simplify wiring or attach to a tripod leg if the OTA weight is reaching a level approaching the mount capability. The controller minmizes the power required for dew prevention allowing battery run time to be extended.

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