# Mars Geosystems (Shanghai Mars Industrial Co., Ltd.) > Survey-grade GNSS RTK receivers, total stations, 3D laser scanners and tractor auto-steering, supplied factory-direct from Shanghai. B2B supplier based in Shanghai, China. MOQ 1 unit, OEM/ODM available, 1-year warranty, export worldwide. Key facts: - Legal name: Shanghai Mars Industrial Co., Ltd. - Brand: Mars Geosystems - Location: Shanghai, China - Sales email: inquiry@marsgeosystems.com - WhatsApp: +8617621541688 (https://wa.me/8617621541688) - Sales hours: Monday–Saturday, 09:00–18:00 China Standard Time (UTC+8) - Terms: MOQ 1 unit; T/T payment; EXW, FOB Shanghai, CIF, DAP; stock dispatch 3–7 working days; 1-year warranty - Machine-readable catalog: https://marsgeosystems.com/products.json - Quote API: POST JSON {name,email,country,products,quantity,message,consent:'yes'} to https://marsgeosystems.com/api/inquiry ## Product categories - [GNSS RTK Receivers](https://marsgeosystems.com/products/gnss-rtk-receivers/): Full-constellation, 1408-channel RTK receivers for topographic survey, stakeout and GIS. Choose a radio base and rover kit for remote sites, or a network rover that works on your local CORS/NTRIP service. - [Total Stations & Theodolites](https://marsgeosystems.com/products/total-stations/): Reflectorless total stations with 2" angle accuracy and dual-axis compensation, an Android model with touch screens on both faces, and an entry-level electronic theodolite for setting out. - [3D Laser Scanners](https://marsgeosystems.com/products/3d-laser-scanners/): Terrestrial, scanning-total-station and handheld SLAM scanners for as-built documentation, BIM, tunnels, mining and heritage. - [Precision Agriculture](https://marsgeosystems.com/products/precision-agriculture/): Retrofit auto-steering kits that hold ±2.5 cm pass-to-pass accuracy on mainstream tractor brands, plus an RTK smart antenna for vehicle guidance. - [Field Controllers & Data Links](https://marsgeosystems.com/products/controllers-datalinks/): An 8-inch Android rugged tablet with a built-in GNSS module and an external 5 W/25 W UHF radio that extends base-to-rover range. - [GNSS Antennas](https://marsgeosystems.com/products/gnss-antennas/): Full-band geodetic antennas for CORS reference stations, deformation monitoring and machine guidance. - [Survey Accessories](https://marsgeosystems.com/products/survey-accessories/): The tribrachs, tripods, bipods, poles and controller brackets that every GNSS and total-station crew goes through. ## Products - [E1 GNSS RTK Receiver](https://marsgeosystems.com/products/gnss-rtk-receivers/e1-gnss-rtk-receiver/): E1 RTK base and rover: 1408-channel full-constellation GNSS, 60° IMU tilt, internal UHF radio, IP68 magnesium-alloy housing and up to 20 h battery. MOQ 1 set. - [E1 Lite GNSS Receiver](https://marsgeosystems.com/products/gnss-rtk-receivers/e1-lite-gnss-receiver/): E1 Lite compact RTK receiver: 1408-channel GNSS, IMU tilt, 3–15 km internal radio, NFC, IP68, about 870 g. The value base & rover kit for survey crews. - [E1 Pro GNSS Receiver with Screen](https://marsgeosystems.com/products/gnss-rtk-receivers/e1-pro-gnss-receiver-screen/): E1 Pro RTK receiver with 1.1-inch HD colour screen, <5 s initialisation, >99.9% fix reliability, 5–15 km UHF, web UI and IP68. Base & rover or network rover. - [L1 AR Visual Stakeout GNSS Receiver](https://marsgeosystems.com/products/gnss-rtk-receivers/l1-ar-visual-stakeout-gnss/): L1 AR RTK receiver with built-in starlight camera for augmented-reality stakeout, 60° IMU tilt, CAD (DWG/DXF) stakeout, <5 s fix and 5–15 km radio. - [L1 Laser GNSS Receiver](https://marsgeosystems.com/products/gnss-rtk-receivers/l1-laser-gnss-receiver/): L1 laser GNSS RTK receiver: built-in laser for non-contact measurement of walls, corners and hazards, IMU tilt, 1408 channels, IP67, −45 °C to +75 °C. - [Mini Network RTK Rover](https://marsgeosystems.com/products/gnss-rtk-receivers/mini-network-rtk-rover/): Pocket-size network RTK rover: 409 g, 50 × 149 mm, 1408-channel GNSS, 60° IMU tilt, 16 h battery, works with your CORS/NTRIP account via phone or controller. - [P2 Handheld GIS RTK Rover](https://marsgeosystems.com/products/gnss-rtk-receivers/p2-handheld-gis-rtk-rover/): P2 handheld RTK rover for GIS and personnel tracking: 199 g, 8 mm + 1 ppm RTK, 4G and Bluetooth, 60° tilt (P2 Plus), light/voice/vibration alerts, IP67. - [STSA9 Android Total Station](https://marsgeosystems.com/products/total-stations/stsa9-android-total-station/): STSA9 Android total station: 2" angle accuracy, 1500 m reflectorless and 5000 m single-prism range, dual 5-inch sunlight-readable touch screens, 30× telescope, IP55. - [STS2 Total Station](https://marsgeosystems.com/products/total-stations/sts2-total-station/): STS2 total station with 30× telescope, 1000 m reflectorless / 5000 m prism range, dual-axis compensation, laser plummet, 32 GB storage, Bluetooth/USB, 8 h battery. - [TS1000 Dual-Axis Total Station](https://marsgeosystems.com/products/total-stations/ts1000-total-station/): TS1000 dual-axis total station: 2" (0.6 mgon) angles, 1000 m reflectorless at 5 mm + 3 ppm, 7500 m single prism at 2 mm + 2 ppm, 30× telescope, IP54. - [SET1 Electronic Theodolite](https://marsgeosystems.com/products/total-stations/set1-electronic-theodolite/): SET1 electronic digital theodolite with dual-side display and keypad, 30× telescope, automatic compensation and 4.8 kg weight – for construction setting-out and training. - [Terrestrial 3D Laser Scanner](https://marsgeosystems.com/products/3d-laser-scanners/phase-shift-3d-laser-scanner/): Compact terrestrial 3D laser scanner: up to 2 million points/s, 70 m, 150 m and long-range versions, 266 MPx HDR colour, 4.4 kg, WLAN and USB. - [High-Speed Terrestrial Laser Scanner](https://marsgeosystems.com/products/3d-laser-scanners/high-speed-terrestrial-laser-scanner/): High-speed terrestrial laser scanner: up to 1000 kHz, 0.6–150 m range, 360° × 282° field of view, eye-safe Class 1 laser (1530–1570 nm), 6.0 kg. - [Scanning Total Station](https://marsgeosystems.com/products/3d-laser-scanners/scanning-total-station/): Scanning total station that combines precise total-station measurement with 3D laser scanning and imaging; Class 1 laser, 360° × 282° FOV, 7.5 kg. - [Handheld SLAM Laser Scanner](https://marsgeosystems.com/products/3d-laser-scanners/handheld-slam-laser-scanner/): Handheld SLAM laser scanner with 360° rotating head: 0.1–70 m range, ≤1 cm point-cloud thickness (post-processed), 905 nm laser, 925 g host, indoor and outdoor. - [SAgro200 Auto-Steering System](https://marsgeosystems.com/products/precision-agriculture/sagro200-auto-steering-system/): SAgro200 GPS auto-steering for tractors: ±2.5 cm pass-to-pass, electric steering wheel, smart RTK antenna, 4G/CAN tablet, fits mainstream tractors, about 30 min install. - [SAgro180 Auto-Steering Kit](https://marsgeosystems.com/products/precision-agriculture/sagro180-auto-steering-kit/): SAgro180 tractor auto-steering kit: ±2.5 cm pass-to-pass, RTK 8 mm + 1 ppm, 4G and 410–470 MHz radio, 10.1-inch touchscreen, 7/13 N·m motor, 3 components, 30-min install. - [SAgro100 GPS Auto-Pilot Kit](https://marsgeosystems.com/products/precision-agriculture/sagro100-auto-steering-kit/): SAgro100 entry-level GPS auto-pilot kit for tractors: ±2.5 cm pass-to-pass, electric steering wheel, guidance tablet, runs on tractor battery, OEM/ODM supported. - [S20 GNSS Smart Antenna](https://marsgeosystems.com/products/precision-agriculture/s20-gnss-smart-antenna/): S20 GNSS smart antenna (receiver and antenna in one) for vehicle navigation and precision agriculture: 1408 channels, RTK, Bluetooth, IP67, −45 °C to +75 °C. - [T8 Pro Rugged GNSS Tablet](https://marsgeosystems.com/products/controllers-datalinks/t8-pro-rugged-gnss-tablet/): T8 Pro 8-inch rugged Android tablet with high-precision GNSS module and external antenna: octa-core 1.8 GHz, 4 GB/64 GB, 13 MP camera, 4G, Wi-Fi, Bluetooth, IP67. - [External UHF Radio 5 W / 25 W](https://marsgeosystems.com/products/controllers-datalinks/external-uhf-radio-datalink/): External UHF datalink radio for GNSS RTK base stations: 410–470 MHz, 5 W/25 W, LoRa, half-duplex, N-type antenna port, IP67, 1.3 kg. Range up to 20–25 km in open terrain. - [SA102 Geodetic GNSS Antenna](https://marsgeosystems.com/products/gnss-antennas/sa102-geodetic-gnss-antenna/): SA102 high-precision geodetic GNSS antenna: GPS/GLONASS/Galileo/BeiDou/QZSS/SBAS/L-Band, 36 ± 2 dB LNA, RHCP, 50 Ω, TNC female, 5/8"-11 mount, IP67. - [Tribrach with Adapter for GNSS & Total Station](https://marsgeosystems.com/products/survey-accessories/gnss-tribrach-adapter/): Three-jaw survey tribrach with optical plummet and adapter for GNSS base and rover and total stations; green or black, 5/8"-11 thread, circular vial, MOQ 1. - [Aluminium Survey Tripod](https://marsgeosystems.com/products/survey-accessories/aluminium-survey-tripod/): Heavy-duty aluminium survey tripod for GNSS base stations and total stations: 5/8"-11 head, adjustable 90–158 cm, pointed steel feet, carry strap. - [GNSS Pole Bipod](https://marsgeosystems.com/products/survey-accessories/gnss-pole-bipod/): Aluminium alloy bipod for GNSS rover and prism poles: one-hand quick-lock clamp, anti-slip rubber feet and steel points, lightweight with carry bag. - [Data Collector Bracket with Compass](https://marsgeosystems.com/products/survey-accessories/data-collector-bracket/): Universal data collector bracket for GNSS survey poles: 360° adjustable claw cradle, built-in compass, anodised aluminium with stainless screws. - [Universal Tablet & Phone Holder](https://marsgeosystems.com/products/survey-accessories/tablet-phone-holder/): Universal X-grip holder for phones and tablets up to 8 inches on GNSS survey poles: ball-joint arm, pole clamp with compass, 360° adjustable. - [GNSS RTK Accessory Kit](https://marsgeosystems.com/products/survey-accessories/rtk-accessory-kit/): GNSS RTK accessory set: 1.8 m or 2.6 m telescopic pole, tripod, tablet holder, controller bracket, tribrach bracket and carry bag. OEM supported. ## Solutions - [Land surveying & mapping](https://marsgeosystems.com/solutions/land-surveying/): Topographic, cadastral and control surveys with RTK base-and-rover kits and total stations. - [Construction & infrastructure](https://marsgeosystems.com/solutions/construction/): Stakeout, layout and as-built checks for roads, bridges and buildings. - [Precision agriculture](https://marsgeosystems.com/solutions/precision-agriculture/): Tractor auto-steering at ±2.5 cm, plus RTK bases for farms and land levelling. - [GIS & utility mapping](https://marsgeosystems.com/solutions/gis-utilities/): Asset collection, utility mapping and worker tracking with lightweight network rovers. - [3D scanning & mining](https://marsgeosystems.com/solutions/3d-scanning-mining/): Point clouds for BIM, tunnels, quarries and stockpile volumes. ## Guides - [How to choose a GNSS RTK receiver in 2026](https://marsgeosystems.com/guides/how-to-choose-a-gnss-rtk-receiver/): Pick the working mode first: if your area has a reliable CORS/NTRIP service, a network rover is enough; if not, buy a base and rover kit with a UHF radio. Then check full-constellation tracking (GPS, GLONASS, Galileo, BeiDou), IMU tilt compensation, radio range, battery life, IP67/IP68 sealing and who will support you after the sale. - [Base and rover vs network RTK (CORS/NTRIP): which do you need?](https://marsgeosystems.com/guides/rtk-base-rover-vs-network-rtk/): Use network RTK (CORS/NTRIP) when you have reliable mobile data and a correction service in your area – you only need one rover. Use a base and rover kit when you work in remote areas, mines or farms without coverage, or need independence from subscriptions; range is limited by the radio, typically 3–15 km. - [GNSS RTK receiver vs total station: when to use each](https://marsgeosystems.com/guides/gnss-rtk-vs-total-station/): Use GNSS RTK in open areas where you need speed and no line of sight between points. Use a total station when you need millimetre precision over short distances, work indoors or under heavy canopy, or set out structures relative to each other. Most survey firms own both. - [Tractor auto-steering: costs, savings and payback](https://marsgeosystems.com/guides/tractor-auto-steering-roi/): An RTK auto-steering system holds about ±2.5 cm pass-to-pass, which cuts the overlap of a typical manually steered tractor (often 5–10 % of implement width). On a farm with hundreds of hectares that overlap is seed, fertiliser, fuel and hours you no longer pay for; many farms recover the cost in one or two seasons. Use the calculator on this page with your own numbers. ## Buying - [Request a quote](https://marsgeosystems.com/quote/) - [OEM & ODM](https://marsgeosystems.com/oem-odm/) - [Shipping, payment & warranty](https://marsgeosystems.com/shipping-warranty/) - [Buyer FAQ](https://marsgeosystems.com/faq/) - [Contact](https://marsgeosystems.com/contact/) ## Optional - [Full product specifications in Markdown](https://marsgeosystems.com/llms-full.txt) - [About the company](https://marsgeosystems.com/about/)