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Home Accessories Dew Prevention Dew Controllers and Bands Altair DewZapper 2" OD Dew Heater Band 28cm Long
DewZapper dew heaters are the high quality solution, with a geniune Nichrome wire heating element embedded in a silicon rubber subtrate, for durability and moisture-resistance. The 22 awg silicon coated wires have a synthetic rubber outer sheath, which remains flexible even in very low temperatures reducing "cable pull" related tracking errors. The RCA power jacks are bonded with flexible glue and a heatshrink tube for strain relief. A high quality Velcro pad sewn onto an elasticated strap is included for easy fitment. An internal neoprene insulator directs heat into the optics so you won't waste any power.Ideal for eyepieces or findersHigh-quality Male RCA plug fits most Dew Controllers with a 12v output (never exceed 12v).
There is simply no comparison with heaters which use thin audio cables and thin-film or "foil" heating elements, which are crimped to the wires, creating a failure point. DewZapper dew heater technical specs: Fits Telescope, Microscope Eyepieces, DSLR lens or Finder Scope optical tubes with 2-3" (50-75mm) OD. Stops condensation, moisture, fogging and dew forming on telescope eyepieces, microscope eyepieces, camera lenses, CCTV systems. High quality silicon cable with rubber outer sheath, glued to RCA jack for strain relief, remaining flexible at below zero temperatures, and moisture resistant. High-quality long lasting Nichrome wire heating element embedded in a fused flexible silicon substrate for moisture resistance and reliability. (NO "thin-film resistors" or "foil elements" are used!) Total length 280mm, width 30mm. Efficient with low power consumption. (Power consumption & heat output are determined by 12v controller power setting). Includes neoprene insulator on the back of the heater to direct heat inwards to the optics for better efficiency. Produces max 4 Watts, 0.3A at 12v 100% duty cycle. High-quality Male RCA plug fits most Dew Controllers with a 12v output (never exceed 12v).
Excellent I discovered dew problems with my new hobby, 2 of these for eyepieces and a celestron ring heater for my scope, all on a 4tronix controller have solved the problems. I thought that one of the straps was faulty at first, but after advice from Ed discovered some heat faster than others. (16/11/2023) Paul M - Kidlington
We’ll made dew zapper I’m really impressed with the quality of this dew zapper, it’s made from good components which feel like they’ll last a lifetime. Second dew zapper of this make that I’ve bought and can’t recommend highly enough. (19/02/2023) Simon - Grimsby
Works well - short cable Bought this to keep my guide scope clear in sub zero temperatures. It complements my 80 mm dew zapper and feeds from the same two socket controller. Easy to fit (after a couple of goes in daylight). Only a 1 metre cable so there needs to be a bit of slack on the other side of the controller. (10/01/2021) Andrew - Bromley
Well made Works fine, appears well made and built to last (28/12/2020) -
Good quality heater tapes Well-made tapes with solid construction - not much more to say. The cables are quite flexible (though have a bit of preferential bending/memory), the strap is easy to configure and fit (my 2" is on a coma corrector, I have a larger one on my guidescope), and it seems to work reliably. (04/10/2019) James - Oxford
Well Done Harrison I have recently purchased a number of items from Harrison and on each occasion, one of which required them to give me advice, I found them excellent. It is so refreshing these days to find retailers who understand about Customer Service and also keep a well stocked shop. Nice One Harrison! (09/03/2019) Stuart - Hertfordshire
I have had bad experience with past due heater straps that have frustratingly left horrible visible black marks on my white TMB optical tubes. I had an absolute nightmare cleaning these marks off. However, Ed of Harrison telescope knowing my past problems, introduced me to The Dew Zapper Heater Tapes. Well, all I can say is, what a top quality product. Thank Ed! These Heater Tapes are well made, and have a generous length of moisture resistant leads that I’m please to say is massively beneficial for long focal telescopes. Also no more horrible black marks on my telescope tubes this for me just say quality. On a final note I’m please to say my new Dew Zapper Heater Tapes are now in full use connected up to my two Pegasus dew systems. (09/11/2018) James Howes - South East London
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