Agena Dew-Ninja™ 12V DC Heater Strip with Stepless Temperature Control
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Important Note: Effective Jan 3, 2024, these dew heater strips no longer come with an RCA Male to 5.5x2.1mm Male Power Connector Cable. This cable is now sold separately if you need it.
PLEASE NOTE: This listing is for ONE Dew Ninja dew heater strip only as listed in the item title above. To select the correct size for your optical device, please see Sections C and D below and select the appropriate length accordingly from the many options above.
A. About Agena Dew-Ninja Dew Heaters
Agena's Dew Ninja Dew Remover is a thick film dew heater band manufactured for operation at 12 volts DC. It prevents dew condensation from forming on the glass surface of your optical device. The heating element provides even heat distribution without localized hot spots or burnouts. These are power-efficient strips that will not result in unneccessary drain on your battery or power supply which is especially important if you power your telescope and accessories in the field.
A key feature that differentiates this product from other commerically available dew heaters is the inclusion of an inline stepless rheostat that allows you to vary the power provided to the heater strip, providing just the right amount of heat for your optical setup. This eliminates the need for a separate dew controller (which start off at about $100). If you use more than one Dew Ninja heater strip on your setup, you can individually control their power output as opposed to some dew controllers that only allow you to vary the output of one or two channels.
Agena Dew Ninja strips are manufactured to very high quality standards. Each heater has a hook-and-loop self fastener strip on one side for easy attachment and comes with a 1 or 3 foot cord (varies by model - see table below).
B. Powering the Agena Dew-Ninja Dew Heaters
The power cord on these dew heater bands terminates in a DC 5.5mm x 2.1mm female power connector. Please note: This no longer includes a separate DC male to RCA male cable (these are now sold separately).
These bands can also be powered from many commercially available batteries, power tanks, or cigarette lighter adapters that have a 12V 2.1mm pin power output. However, almost all of these devices have a female power socket as well.
If you have a power supply or dew heater controller with RCA female jacks (such as those from Dew Not, Kendtick, Thousand Oaks, etc.), you will need to purchase a separate DC-RCA cable as mentioned above.
- Many of these (examples: ASIAIR-Pro/Plus, Agena AstroCell portable batteries, Pegasus Powerboxes) come with one or more male-male 2.1mm power cables, in which case you do not need any additional cables.
- However, if your power source does not come with a male power connector or cable, you will need to purchase a 2.1mm male-male cable separately to power these.
Note that these dew heater strips do not come with any power supply. You cannot run these directly from 110/220V AC, USB, or cigarette-lighter sockets and no other power cords are included.
C. Selecting a Dew-Ninja Dew Heater
Dew Ninja dew control stips are available for many popular sized eyepieces and telescopes. To select the right size, measure the circumference of your specific eyepiece/finder/telescope tube or dewshield. Or measure the tube/dewshield diameter (not telescope aperture) and multiply by 3.14. Pick one of the models based on the length specified. For in-between sizes, choose the next larger size of dew heater. Please measure the tube or dewshield and select the correct size BEFORE ordering, and don't order just based on your telescope aperture.
The lengths stated below are for the dew heater band. The actual dew heater element within the band will be a little shorter but it will work just fine as long as you size the strip correctly as explained above.
D. Specification Table
| Item | Dew Heater Band Length (Excluding Fastener Strip) | Power Cable Length | Power (Watts) | Voltage | Amperage | Generally Suitable For* |
| DH20 | 20cm / 7.9" | 940mm | 15 | 12 | 0.33 | 1.25" eyepieces, smaller 2" eyepieces, smaller finders/guidescopes |
| DH25 | 25cm / 9.8" | 940mm | 18 | 12 | 0.36 | 2" eyepieces, larger finders/guidescopes, some photographic lenses |
| DH30 | 30cm / 11.8" | 940mm | 14 | 12 | 0.31 | Some 3" telescopes and photographic lenses |
| DH40 | 40cm / 15.7" | 940mm | 15 | 12 | 0.31 | Some 4" telescopes and larger photographic lenses |
| DH50 | 50cm / 19.7" | 940mm | 16 | 12 | 0.33 | Some 5" or 6" telescopes |
| DH60 | 60cm / 23.6" | 940mm | 14 | 12 | 0.29 | Some 6" or 7" telescopes |
| DH70 | 70cm / 27.5" | 260mm | 14 | 12 | 0.31 | Some 7" or 8" telescopes |
| DH80 | 80cm / 31.5" | 260mm | 16 | 12 | 0.34 | Some 8" or 9" telescopes |
| DH95 | 95cm / 37.4" | 260mm | 21 | 12 | 0.42 | Some 10" telescopes |
| DH110 | 110cm / 43.3" | 260mm | 18 | 12 | 0.37 | Some 11" or 12" telecopes |
* Suggested application. However, we cannot be responsible for ensuring a perfect fit. For this, please be sure to measure your equipment and select the appropriate size as explained in Section C above.
Other Information
- Country of Manufacture: China
PLEASE NOTE: This listing is for ONE Dew Ninja dew heater strip only as listed in the item title above. To select the correct size for your optical device, please see Sections C and D below and select the appropriate length accordingly from the many options above.
A. About Agena Dew-Ninja Dew Heaters
Agena's Dew Ninja Dew Remover is a thick film dew heater band manufactured for operation at 12 volts DC. It prevents dew condensation from forming on the glass surface of your optical device. The heating element provides even heat distribution without localized hot spots or burnouts. These are power-efficient strips that will not result in unneccessary drain on your battery or power supply which is especially important if you power your telescope and accessories in the field.
A key feature that differentiates this product from other commerically available dew heaters is the inclusion of an inline stepless rheostat that allows you to vary the power provided to the heater strip, providing just the right amount of heat for your optical setup. This eliminates the need for a separate dew controller (which start off at about $100). If you use more than one Dew Ninja heater strip on your setup, you can individually control their power output as opposed to some dew controllers that only allow you to vary the output of one or two channels.
Agena Dew Ninja strips are manufactured to very high quality standards. Each heater has a hook-and-loop self fastener strip on one side for easy attachment and comes with a 1 or 3 foot cord (varies by model - see table below).
B. Powering the Agena Dew-Ninja Dew Heaters
The power cord on these dew heater bands terminates in a DC 5.5mm x 2.1mm female power connector. Please note: This no longer includes a separate DC male to RCA male cable (these are now sold separately).
These bands can also be powered from many commercially available batteries, power tanks, or cigarette lighter adapters that have a 12V 2.1mm pin power output. However, almost all of these devices have a female power socket as well.
If you have a power supply or dew heater controller with RCA female jacks (such as those from Dew Not, Kendtick, Thousand Oaks, etc.), you will need to purchase a separate DC-RCA cable as mentioned above.
- Many of these (examples: ASIAIR-Pro/Plus, Agena AstroCell portable batteries, Pegasus Powerboxes) come with one or more male-male 2.1mm power cables, in which case you do not need any additional cables.
- However, if your power source does not come with a male power connector or cable, you will need to purchase a 2.1mm male-male cable separately to power these.
Note that these dew heater strips do not come with any power supply. You cannot run these directly from 110/220V AC, USB, or cigarette-lighter sockets and no other power cords are included.
C. Selecting a Dew-Ninja Dew Heater
Dew Ninja dew control stips are available for many popular sized eyepieces and telescopes. To select the right size, measure the circumference of your specific eyepiece/finder/telescope tube or dewshield. Or measure the tube/dewshield diameter (not telescope aperture) and multiply by 3.14. Pick one of the models based on the length specified. For in-between sizes, choose the next larger size of dew heater. Please measure the tube or dewshield and select the correct size BEFORE ordering, and don't order just based on your telescope aperture.
The lengths stated below are for the dew heater band. The actual dew heater element within the band will be a little shorter but it will work just fine as long as you size the strip correctly as explained above.
D. Specification Table
| Item | Dew Heater Band Length (Excluding Fastener Strip) | Power Cable Length | Power (Watts) | Voltage | Amperage | Generally Suitable For* |
| DH20 | 20cm / 7.9" | 940mm | 15 | 12 | 0.33 | 1.25" eyepieces, smaller 2" eyepieces, smaller finders/guidescopes |
| DH25 | 25cm / 9.8" | 940mm | 18 | 12 | 0.36 | 2" eyepieces, larger finders/guidescopes, some photographic lenses |
| DH30 | 30cm / 11.8" | 940mm | 14 | 12 | 0.31 | Some 3" telescopes and photographic lenses |
| DH40 | 40cm / 15.7" | 940mm | 15 | 12 | 0.31 | Some 4" telescopes and larger photographic lenses |
| DH50 | 50cm / 19.7" | 940mm | 16 | 12 | 0.33 | Some 5" or 6" telescopes |
| DH60 | 60cm / 23.6" | 940mm | 14 | 12 | 0.29 | Some 6" or 7" telescopes |
| DH70 | 70cm / 27.5" | 260mm | 14 | 12 | 0.31 | Some 7" or 8" telescopes |
| DH80 | 80cm / 31.5" | 260mm | 16 | 12 | 0.34 | Some 8" or 9" telescopes |
| DH95 | 95cm / 37.4" | 260mm | 21 | 12 | 0.42 | Some 10" telescopes |
| DH110 | 110cm / 43.3" | 260mm | 18 | 12 | 0.37 | Some 11" or 12" telecopes |
* Suggested application. However, we cannot be responsible for ensuring a perfect fit. For this, please be sure to measure your equipment and select the appropriate size as explained in Section C above.
Important Note: Effective Jan 3, 2024, these dew heater strips no longer come with an RCA Male to 5.5x2.1mm Male Power Connector Cable. This cable is now sold separately if you need it.
PLEASE NOTE: This listing is for ONE Dew Ninja dew heater strip only as listed in the item title above. To select the correct size for your optical device, please see Sections C and D below and select the appropriate length accordingly from the many options above.
A. About Agena Dew-Ninja Dew Heaters
Agena's Dew Ninja Dew Remover is a thick film dew heater band manufactured for operation at 12 volts DC. It prevents dew condensation from forming on the glass surface of your optical device. The heating element provides even heat distribution without localized hot spots or burnouts. These are power-efficient strips that will not result in unneccessary drain on your battery or power supply which is especially important if you power your telescope and accessories in the field.
A key feature that differentiates this product from other commerically available dew heaters is the inclusion of an inline stepless rheostat that allows you to vary the power provided to the heater strip, providing just the right amount of heat for your optical setup. This eliminates the need for a separate dew controller (which start off at about $100). If you use more than one Dew Ninja heater strip on your setup, you can individually control their power output as opposed to some dew controllers that only allow you to vary the output of one or two channels.
Agena Dew Ninja strips are manufactured to very high quality standards. Each heater has a hook-and-loop self fastener strip on one side for easy attachment and comes with a 1 or 3 foot cord (varies by model - see table below).
B. Powering the Agena Dew-Ninja Dew Heaters
The power cord on these dew heater bands terminates in a DC 5.5mm x 2.1mm female power connector. Please note: This no longer includes a separate DC male to RCA male cable (these are now sold separately).
These bands can also be powered from many commercially available batteries, power tanks, or cigarette lighter adapters that have a 12V 2.1mm pin power output. However, almost all of these devices have a female power socket as well.
If you have a power supply or dew heater controller with RCA female jacks (such as those from Dew Not, Kendtick, Thousand Oaks, etc.), you will need to purchase a separate DC-RCA cable as mentioned above.
- Many of these (examples: ASIAIR-Pro/Plus, Agena AstroCell portable batteries, Pegasus Powerboxes) come with one or more male-male 2.1mm power cables, in which case you do not need any additional cables.
- However, if your power source does not come with a male power connector or cable, you will need to purchase a 2.1mm male-male cable separately to power these.
Note that these dew heater strips do not come with any power supply. You cannot run these directly from 110/220V AC, USB, or cigarette-lighter sockets and no other power cords are included.
C. Selecting a Dew-Ninja Dew Heater
Dew Ninja dew control stips are available for many popular sized eyepieces and telescopes. To select the right size, measure the circumference of your specific eyepiece/finder/telescope tube or dewshield. Or measure the tube/dewshield diameter (not telescope aperture) and multiply by 3.14. Pick one of the models based on the length specified. For in-between sizes, choose the next larger size of dew heater. Please measure the tube or dewshield and select the correct size BEFORE ordering, and don't order just based on your telescope aperture.
The lengths stated below are for the dew heater band. The actual dew heater element within the band will be a little shorter but it will work just fine as long as you size the strip correctly as explained above.
D. Specification Table
| Item | Dew Heater Band Length (Excluding Fastener Strip) | Power Cable Length | Power (Watts) | Voltage | Amperage | Generally Suitable For* |
| DH20 | 20cm / 7.9" | 940mm | 15 | 12 | 0.33 | 1.25" eyepieces, smaller 2" eyepieces, smaller finders/guidescopes |
| DH25 | 25cm / 9.8" | 940mm | 18 | 12 | 0.36 | 2" eyepieces, larger finders/guidescopes, some photographic lenses |
| DH30 | 30cm / 11.8" | 940mm | 14 | 12 | 0.31 | Some 3" telescopes and photographic lenses |
| DH40 | 40cm / 15.7" | 940mm | 15 | 12 | 0.31 | Some 4" telescopes and larger photographic lenses |
| DH50 | 50cm / 19.7" | 940mm | 16 | 12 | 0.33 | Some 5" or 6" telescopes |
| DH60 | 60cm / 23.6" | 940mm | 14 | 12 | 0.29 | Some 6" or 7" telescopes |
| DH70 | 70cm / 27.5" | 260mm | 14 | 12 | 0.31 | Some 7" or 8" telescopes |
| DH80 | 80cm / 31.5" | 260mm | 16 | 12 | 0.34 | Some 8" or 9" telescopes |
| DH95 | 95cm / 37.4" | 260mm | 21 | 12 | 0.42 | Some 10" telescopes |
| DH110 | 110cm / 43.3" | 260mm | 18 | 12 | 0.37 | Some 11" or 12" telecopes |
* Suggested application. However, we cannot be responsible for ensuring a perfect fit. For this, please be sure to measure your equipment and select the appropriate size as explained in Section C above.
Other Information
- Country of Manufacture: China
| Product Status | new |
|---|---|
| Free Shipping Graphic | Free US Shipping |
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Agena Dew-Ninja™ 12V DC Heater Strip with Stepless Temperature Control