低于$ 500
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Original price $ 30.00 - Original price $ 34.99Original price$ 30.00 - $ 34.99$ 30.00 - $ 34.99Current price $ 30.00Star Mentor: Hands-On Projects and Lessons in Observational Astronomy for Beginners - Paperback
Explore ScientificThis is a hands-on guide for both the budding astronomer in need of a mentor and the seasoned observer who wants to learn how to effectively share ...
查看完整细节Original price $ 30.00 - Original price $ 34.99Original price$ 30.00 - $ 34.99$ 30.00 - $ 34.99Current price $ 30.00 -
Original price $ 145.99 - Original price $ 145.99Original price$ 145.99$ 145.99 - $ 145.99Current price $ 145.99Dobsonian Shroud for 20" Truss Tube DOB Telescope
Explore ScientificDescription Keep out stray and unwanted light from your 20" Truss Tube Dobsonian telescope with a lightweight light shroud. Keeping the path dark ...
查看完整细节Original price $ 145.99 - Original price $ 145.99Original price$ 145.99$ 145.99 - $ 145.99Current price $ 145.99 -
Original price $ 25.99 - Original price $ 25.99Original price$ 25.99$ 25.99 - $ 25.99Current price $ 25.99Galileoscope Tripod
Explore ScientificFeatures Lightweight tripod easily converts from tabletop to full-size model Mount design provides a secure fit for steady viewing during long ob...
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Original price $ 272.72 - Original price $ 272.72Original price$ 272.72$ 272.72 - $ 272.72Current price $ 272.72Vixen SG 2.1×42 Binoculars
VixenFeatures Low magnification wide field of view Fully Multi-coated Made in Saitama Comes standard with a lightweight pouch with neck strap Descri...
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Original price $ 49.99Original price $ 49.99 - Original price $ 49.99Original price $ 49.99Current price $ 34.99$ 34.99 - $ 34.99Current price $ 34.99Certified Pre-Owned National Geographic 900x Microscope with Hard Case
National GeographicCertified Pre-Owned Refurbished These Certified Pre-Owned items -- including telescopes and accessories -- have been thoroughly inspected by the E...
查看完整细节Original price $ 49.99Original price $ 49.99 - Original price $ 49.99Original price $ 49.99Current price $ 34.99$ 34.99 - $ 34.99Current price $ 34.99Save $ 15.00 -
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Original price $ 79.99Original price $ 79.99 - Original price $ 79.99Original price $ 79.99Current price $ 44.99$ 44.99 - $ 44.99Current price $ 44.99经过认证的预先二手国家地理10x42防水双筒望远镜带浮带
National Geographic经过认证的预先翻新 这些经过认证的预先二手物品（包括望远镜和配件）已由Explore科学质量控制团队进行了彻底检查，以确保该物品达到我们的高标准。然后将该物品重新包装，通常在新盒子中，并准备出货。 通常，这些项目来自THree资料来源：返回，通常像新状况一样；交易另一个项目；或新的，但有瑕疵和...
查看完整细节Original price $ 79.99Original price $ 79.99 - Original price $ 79.99Original price $ 79.99Current price $ 44.99$ 44.99 - $ 44.99Current price $ 44.99Save $ 35.00 -
Original price $ 64.99 - Original price $ 64.99Original price$ 64.99$ 64.99 - $ 64.99Current price $ 64.99Explore Scientific Diagonal 3-inch to 2-inch Adapter - DD03-2
Explore ScientificDescription This device replaces the barrel on the Explore Scientific 99% Reflective 3-inch Diagonal so the diagonal can be used on 2-inch focuser...
查看完整细节Original price $ 64.99 - Original price $ 64.99Original price$ 64.99$ 64.99 - $ 64.99Current price $ 64.99 -
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Original price $ 139.99Original price $ 139.99 - Original price $ 139.99Original price $ 139.99Current price $ 89.95$ 89.95 - $ 89.95Current price $ 89.95经过认证的二手国家地理数字金属探测器带耳机
National Geographic经过认证的预先翻新 这些经过认证的预先二手物品（包括望远镜和配件）已由Explore科学质量控制团队进行了彻底检查，以确保该物品达到我们的高标准。然后将该物品重新包装，通常在新盒子中，并准备出货。 通常，这些项目来自THree资料来源：返回，通常像新状况一样；交易另一个项目；或新的，但有瑕疵和...
查看完整细节Original price $ 139.99Original price $ 139.99 - Original price $ 139.99Original price $ 139.99Current price $ 89.95$ 89.95 - $ 89.95Current price $ 89.95Save $ 50.04 -
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Original price $ 479.99Original price $ 479.99 - Original price $ 479.99Original price $ 479.99Current price $ 380.00$ 380.00 - $ 380.00Current price $ 380.00Certified Pre-Owned Explore Scientific 3" Field Flattener .7x Focal Reducer - CPO-FFFR507X-00
Explore ScientificCertified Pre-Owned Refurbished These Certified Pre-Owned items -- including telescopes and accessories -- have been thoroughly inspected by the E...
查看完整细节Original price $ 479.99Original price $ 479.99 - Original price $ 479.99Original price $ 479.99Current price $ 380.00$ 380.00 - $ 380.00Current price $ 380.00Save $ 99.99 -
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Original price $ 219.99Original price $ 219.99 - Original price $ 219.99Original price $ 219.99Current price $ 139.99$ 139.99 - $ 139.99Current price $ 139.99经过认证的预先二手Pirsch 8x34双筒望远镜
Bresser经过认证的预先翻新 这些经过认证的预先二手物品（包括望远镜和配件）已由Explore科学质量控制团队进行了彻底检查，以确保该物品达到我们的高标准。然后将该物品重新包装，通常在新盒子中，并准备出货。 通常，这些项目来自THree资料来源：返回，通常像新状况一样；交易另一个项目；或新的，但有瑕疵和...
查看完整细节Original price $ 219.99Original price $ 219.99 - Original price $ 219.99Original price $ 219.99Current price $ 139.99$ 139.99 - $ 139.99Current price $ 139.99Save $ 80.00 -
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Original price $ 149.99Original price $ 149.99 - Original price $ 149.99Original price $ 149.99Current price $ 99.99$ 99.99 - $ 99.99Current price $ 99.99Certified Pre-Owned National Geographic NT114CF 114mm Reflector Telescope - CPO-80-20114
National GeographicCertified Pre-Owned Refurbished These Certified Pre-Owned items -- including telescopes and accessories -- have been thoroughly inspected by the Ex...
查看完整细节Original price $ 149.99Original price $ 149.99 - Original price $ 149.99Original price $ 149.99Current price $ 99.99$ 99.99 - $ 99.99Current price $ 99.99Save $ 50.00 -
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Original price $ 59.99Original price $ 59.99 - Original price $ 59.99Original price $ 59.99Current price $ 41.95$ 41.95 - $ 41.95Current price $ 41.95经过认证的预先二手探索Apollo显微镜和望远镜套件
Explore One - CPO经过认证的预先翻新 这些经过认证的预先二手物品（包括望远镜和配件）已由Explore科学质量控制团队进行了彻底检查，以确保该物品达到我们的高标准。然后将该物品重新包装，通常在新盒子中，并准备出货。 通常，这些项目来自THree资料来源：返回，通常像新状况一样；交易另一个项目；或新的，但有瑕疵和...
查看完整细节Original price $ 59.99Original price $ 59.99 - Original price $ 59.99Original price $ 59.99Current price $ 41.95$ 41.95 - $ 41.95Current price $ 41.95Save $ 18.04 -
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Original price $ 39.99Original price $ 39.99 - Original price $ 39.99Original price $ 39.99Current price $ 24.95$ 24.95 - $ 24.95Current price $ 24.95Certified Pre-Owned Explore One 45 Piece 900X Microscope Set with Case
Explore One - CPOCertified Pre-Owned Refurbished These Certified Pre-Owned items -- including telescopes and accessories -- have been thoroughly inspected by the Ex...
查看完整细节Original price $ 39.99Original price $ 39.99 - Original price $ 39.99Original price $ 39.99Current price $ 24.95$ 24.95 - $ 24.95Current price $ 24.95Save $ 15.04 -
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Original price $ 79.99Original price $ 79.99 - Original price $ 79.99Original price $ 79.99Current price $ 59.99$ 59.99 - $ 59.99Current price $ 59.99Certified Pre-Owned Explore One Titan 70mm Telescope with Panhandle Mount
Explore OneCertified Pre-Owned Refurbished These Certified Pre-Owned items -- including telescopes and accessories -- have been thoroughly inspected by the E...
查看完整细节Original price $ 79.99Original price $ 79.99 - Original price $ 79.99Original price $ 79.99Current price $ 59.99$ 59.99 - $ 59.99Current price $ 59.99Save $ 20.00 -
Save $ 19.98
Original price $ 54.97Original price $ 54.97 - Original price $ 54.97Original price $ 54.97Current price $ 34.99$ 34.99 - $ 34.99Current price $ 34.99Certified Pre-Owned Explore Scientific Radio Weather Station
Explore ScientificCertified Pre-Owned Refurbished These Certified Pre-Owned items -- including telescopes and accessories -- have been thoroughly inspected by the E...
查看完整细节Original price $ 54.97Original price $ 54.97 - Original price $ 54.97Original price $ 54.97Current price $ 34.99$ 34.99 - $ 34.99Current price $ 34.99Save $ 19.98 -
Save $ 70.00
Original price $ 139.99Original price $ 139.99 - Original price $ 139.99Original price $ 139.99Current price $ 69.99$ 69.99 - $ 69.99Current price $ 69.99经过认证的二手HS 10x32原始系列双筒望远镜
Bresser HS经过认证的预先翻新 这些经过认证的预先二手物品（包括望远镜和配件）已由Explore科学质量控制团队进行了彻底检查，以确保该物品达到我们的高标准。然后将该物品重新包装，通常在新盒子中，并准备出货。 通常，这些项目来自THree资料来源：返回，通常像新状况一样；交易另一个项目；或新的，但有瑕疵和...
查看完整细节Original price $ 139.99Original price $ 139.99 - Original price $ 139.99Original price $ 139.99Current price $ 69.99$ 69.99 - $ 69.99Current price $ 69.99Save $ 70.00 -
Save $ 17.02
Original price $ 54.97Original price $ 54.97 - Original price $ 54.97Original price $ 54.97Current price $ 37.95$ 37.95 - $ 37.95Current price $ 37.95经过认证的二手探索科学无线电天气站
Explore Scientific经过认证的预先翻新 这些经过认证的预先二手物品（包括望远镜和配件）已由Explore科学质量控制团队进行了彻底检查，以确保该物品达到我们的高标准。然后将该物品重新包装，通常在新盒子中，并准备出货。 通常，这些项目来自THree资料来源：返回，通常像新状况一样；交易另一个项目；或新的，但有瑕疵和...
查看完整细节Original price $ 54.97Original price $ 54.97 - Original price $ 54.97Original price $ 54.97Current price $ 37.95$ 37.95 - $ 37.95Current price $ 37.95Save $ 17.02 -
Save $ 360.04
Original price $ 529.99Original price $ 529.99 - Original price $ 529.99Original price $ 529.99Current price $ 169.95$ 169.95 - $ 169.95Current price $ 169.95Certified Pre-Owned Everest 10x42 Binoculars
BresserCertified Pre-Owned Refurbished These Certified Pre-Owned items -- including telescopes and accessories -- have been thoroughly inspected by the E...
查看完整细节Original price $ 529.99Original price $ 529.99 - Original price $ 529.99Original price $ 529.99Current price $ 169.95$ 169.95 - $ 169.95Current price $ 169.95Save $ 360.04 -
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Original price $ 89.99Original price $ 89.99 - Original price $ 89.99Original price $ 89.99Current price $ 39.99$ 39.99 - $ 39.99Current price $ 39.99Certified Pre-Owned Bresser 360° Hunting Blind - OMNI-BL36
BresserCertified Pre-Owned Refurbished These Certified Pre-Owned items -- including telescopes and accessories -- have been thoroughly inspected by the E...
查看完整细节Original price $ 89.99Original price $ 89.99 - Original price $ 89.99Original price $ 89.99Current price $ 39.99$ 39.99 - $ 39.99Current price $ 39.99Save $ 50.00 -
Save $ 44.01
Original price $ 95.00Original price $ 95.00 - Original price $ 95.00Original price $ 95.00Current price $ 50.99$ 50.99 - $ 50.99Current price $ 50.99Certified Pre-Owned National Geographic 50mm Telescope and 640x Microscope Set with Hard Case
National GeographicCertified Pre-Owned Refurbished These Certified Pre-Owned items -- including telescopes and accessories -- have been thoroughly inspected by the E...
查看完整细节Original price $ 95.00Original price $ 95.00 - Original price $ 95.00Original price $ 95.00Current price $ 50.99$ 50.99 - $ 50.99Current price $ 50.99Save $ 44.01 -
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Original price $ 115.95Original price $ 115.95 - Original price $ 115.95Original price $ 115.95Current price $ 60.99$ 60.99 - $ 60.99Current price $ 60.99Certified Pre-Owned Bresser Classic 60/900 AZ Telescope
BresserCertified Pre-Owned Refurbished These Certified Pre-Owned items -- including telescopes and accessories -- have been thoroughly inspected by the E...
查看完整细节Original price $ 115.95Original price $ 115.95 - Original price $ 115.95Original price $ 115.95Current price $ 60.99$ 60.99 - $ 60.99Current price $ 60.99Save $ 54.96 -
Save $ 14.00
Original price $ 39.99Original price $ 39.99 - Original price $ 39.99Original price $ 39.99Current price $ 25.99$ 25.99 - $ 25.99Current price $ 25.99Certified Pre-Owned National Geographic 40x-640x Magnification Microscope with Smartphone Camera Adapter
National GeographicCertified Pre-Owned Refurbished These Certified Pre-Owned items -- including telescopes and accessories -- have been thoroughly inspected by the E...
查看完整细节Original price $ 39.99Original price $ 39.99 - Original price $ 39.99Original price $ 39.99Current price $ 25.99$ 25.99 - $ 25.99Current price $ 25.99Save $ 14.00 -
Save $ 106.00
Original price $ 199.99Original price $ 199.99 - Original price $ 199.99Original price $ 199.99Current price $ 93.99$ 93.99 - $ 93.99Current price $ 93.99Certified Pre-Owned National Geographic StarApp114 - 114mm Reflector Telescope w/ Astronomy APP
National GeographicCertified Pre-Owned Refurbished These Certified Pre-Owned items -- including telescopes and accessories -- have been thoroughly inspected by the E...
查看完整细节Original price $ 199.99Original price $ 199.99 - Original price $ 199.99Original price $ 199.99Current price $ 93.99$ 93.99 - $ 93.99Current price $ 93.99Save $ 106.00 -
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Original price $ 49.99Original price $ 49.99 - Original price $ 49.99Original price $ 49.99Current price $ 20.99$ 20.99 - $ 20.99Current price $ 20.99Certified Pre-Owned Explore One Wi-Fi HD Action Sports Camera
Explore OneCertified Pre-Owned Refurbished These Certified Pre-Owned items -- including telescopes and accessories -- have been thoroughly inspected by the Ex...
查看完整细节Original price $ 49.99Original price $ 49.99 - Original price $ 49.99Original price $ 49.99Current price $ 20.99$ 20.99 - $ 20.99Current price $ 20.99Save $ 29.00 -
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Original price $ 35.99Original price $ 35.99 - Original price $ 35.99Original price $ 35.99Current price $ 27.99$ 27.99 - $ 27.99Current price $ 27.99Certified Pre-Owned National Geographic Adventure Scope
National GeographicCertified Pre-Owned Refurbished These Certified Pre-Owned items -- including telescopes and accessories -- have been thoroughly inspected by the Ex...
查看完整细节Original price $ 35.99Original price $ 35.99 - Original price $ 35.99Original price $ 35.99Current price $ 27.99$ 27.99 - $ 27.99Current price $ 27.99Save $ 8.00 -
Save $ 24.00
Original price $ 49.99Original price $ 49.99 - Original price $ 49.99Original price $ 49.99Current price $ 25.99$ 25.99 - $ 25.99Current price $ 25.99Certified Pre-Owned Bresser See-It Scope HD with Photo and Video
BresserCertified Pre-Owned Refurbished These Certified Pre-Owned items -- including telescopes and accessories -- have been thoroughly inspected by the E...
查看完整细节Original price $ 49.99Original price $ 49.99 - Original price $ 49.99Original price $ 49.99Current price $ 25.99$ 25.99 - $ 25.99Current price $ 25.99Save $ 24.00 -
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Original price $ 139.99Original price $ 139.99 - Original price $ 139.99Original price $ 139.99Current price $ 100.99$ 100.99 - $ 100.99Current price $ 100.99探索一个starapp -50mm折射望远镜，带Panhandle Mount和天文学应用程序
Explore One特征 望远镜管顶的特殊安装座使用户可以使用ArteleScope应用程序将其设备连接到望远镜上，并在夜空中轻松找到星座和行星 应用程序内百科全书提供有关行星和星座的其他详细信息 50mm孔非常适合观看月球和其他明亮的夜空点心 带有两个可互换的Huygens目镜，可提供30倍和48倍的放大...
查看完整细节Original price $ 139.99Original price $ 139.99 - Original price $ 139.99Original price $ 139.99Current price $ 100.99$ 100.99 - $ 100.99Current price $ 100.99Save $ 39.00 -
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Original price $ 24.99Original price $ 24.99 - Original price $ 24.99Original price $ 24.99Current price $ 18.99$ 18.99 - $ 18.99Current price $ 18.99探索豪特纸杯蛋糕卡车
Explore Hut特征 非常适合室内或室外使用 引人注目的食品卡车图形 循环襟翼开口，用于爬行乐趣 侧窗和部分开放的屋顶提供大量通风 灵感富有想象力的游戏 由耐用，高质量的面料制成 可折叠 包括存储袋 年龄3岁以上 描述 Explore Hut纸杯蛋糕卡车是有抱负的面包师，未来食品企业家和任何喜欢...
查看完整细节Original price $ 24.99Original price $ 24.99 - Original price $ 24.99Original price $ 24.99Current price $ 18.99$ 18.99 - $ 18.99Current price $ 18.99Save $ 6.00 -
Save $ 14.00
Original price $ 39.95Original price $ 39.95 - Original price $ 39.95Original price $ 39.95Current price $ 25.95$ 25.95 - $ 25.95Current price $ 25.95探索科学Rumblin的机器人 - 茎
Explore Science特征 在建造自己的拳击机器人时，学习电路的基础知识 与家人和朋友一起玩有趣 个别记分板允许玩家跟踪自己的积分 拳击环基座作为储物盒，可轻松运输 描述 首先，您建造，然后战斗！用Explore Science Rumblin的机器人来敲打科学基础上的“乐趣”。有了这个套件，初级科学家可以...
查看完整细节Original price $ 39.95Original price $ 39.95 - Original price $ 39.95Original price $ 39.95Current price $ 25.95$ 25.95 - $ 25.95Current price $ 25.95Save $ 14.00 -
Save $ 23.00
Original price $ 59.99Original price $ 59.99 - Original price $ 59.99Original price $ 59.99Current price $ 36.99$ 36.99 - $ 36.99Current price $ 36.99探索科学125科学挑战设置 - STEM
Explore Science特征 在处理125个不同的电路挑战时，学习简单的科学原理 设计迷宫，并用几条电线弯曲的难度 建立一个迷你篮球比赛，泡泡制造商或机器人恐龙，以几个简单的步骤 设置涉及发射碟片，旋转色轮或铃响的挑战 包括多个储物盒，可以将其作为构建的基础加倍 描述 初级科学家可以在这款科学集合中应对125...
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Original price $ 69.99 - Original price $ 69.99Original price$ 69.99$ 69.99 - $ 69.99Current price $ 69.99National Geographic 40x-400x Inverted Microscope
National GeographicFeatures Study specimens in stages using magnification powers ranging from 40x to 400x with 3 objective lenses. The full accessory set includes p...
查看完整细节Original price $ 69.99 - Original price $ 69.99Original price$ 69.99$ 69.99 - $ 69.99Current price $ 69.99 -
Original price $ 359.99 - Original price $ 359.99Original price$ 359.99$ 359.99 - $ 359.99Current price $ 359.99Alpen Chisos 10x50 ED Binoculars
AlpenFeatures Lifetime Warranty with registration* ED Glass - Extra-Low Dispersion Glass Waterproof Fog-proof BK7 Optics PXA Phase Coating Magnesium ...
查看完整细节Original price $ 359.99 - Original price $ 359.99Original price$ 359.99$ 359.99 - $ 359.99Current price $ 359.99 -
Original price $ 299.99 - Original price $ 299.99Original price$ 299.99$ 299.99 - $ 299.99Current price $ 299.99Alpen Chisos 10x42 ED Binoculars
AlpenFeatures Lifetime Warranty with registration* ED Glass - Extra-Low Dispersion Glass Waterproof Fog-proof BK7 Optics PXA Phase Coating Magnesium ...
查看完整细节Original price $ 299.99 - Original price $ 299.99Original price$ 299.99$ 299.99 - $ 299.99Current price $ 299.99 -
Original price $ 399.99 - Original price $ 399.99Original price$ 399.99$ 399.99 - $ 399.99Current price $ 399.99Alpen Chisos 12x50 ED Binoculars
AlpenFeatures Lifetime Warranty with registration* ED Glass - Extra-Low Dispersion Glass Waterproof Fog-proof BK7 Optics PXA Phase Coating Magnesium ...
查看完整细节Original price $ 399.99 - Original price $ 399.99Original price$ 399.99$ 399.99 - $ 399.99Current price $ 399.99 -
Original price $ 239.99 - Original price $ 239.99Original price$ 239.99$ 239.99 - $ 239.99Current price $ 239.99Alpen Chisos 8x42 ED Binoculars
AlpenFeatures Lifetime Warranty with registration* ED Glass - Extra-Low Dispersion Glass Waterproof Fog-proof BK7 Optics PXA Phase Coating Magnesium ...
查看完整细节Original price $ 239.99 - Original price $ 239.99Original price$ 239.99$ 239.99 - $ 239.99Current price $ 239.99 -
Original price $ 449.99 - Original price $ 449.99Original price$ 449.99$ 449.99 - $ 449.99Current price $ 449.99IEXOS-100-2 PMC八赤道跟踪器与WiFi和Bluetooth®
Explore Scientific"就我而言，这是最终的便携式系统。"- 吉姆·约翰斯顿天文学家 特征 IEXOS-100是一种天文学系统，它利用了经过验证的德国赤道安装设计，并探索了科学的革命性PMC-eight™精密运动控制系统，可以完美地浏览夜空并在其穿越它的过程中跟踪对象。功能包括： 综合探索科学PMC八™系统，通...
查看完整细节Original price $ 449.99 - Original price $ 449.99Original price$ 449.99$ 449.99 - $ 449.99Current price $ 449.99
