GPS / GNSS Receivers

Kolida & FOIF RTK systems — centimetre-level precision for surveying and mapping across Kenya

Kolida K9T Pro RTK GNSS

Flagship Kolida RTK receiver with built-in 4G/LTE, UHF radio, Bluetooth and Wi-Fi. IP67 rugged, multi-constellation, ideal for East African field conditions.

RTK Accuracy

±8mm H / ±15mm V + 1ppm

Constellations

GPS+GLONASS+BDS+Galileo (556ch)

Data Link

4G LTE + UHF internal + BT

Battery

8 hours field operation

IP Rating

IP67 dust & waterproof

Weight

1.35 kg with battery

  • Cadastral surveys, construction stakeout, GIS mapping, control networks

Kolida S680 GNSS Receiver

High-precision multi-frequency Kolida receiver with 800+ channel tracking, cloud data management, and 10-hour battery — the professional choice for precise static and RTK work.

RTK Accuracy

±2.5mm H + 0.5ppm

Static

±2.5mm H + 0.5ppm post-proc

Channels

800+ channels, all constellations

Memory

8 GB internal data logger

Battery

10 hours continuous

I/O

4G, Wi-Fi, Bluetooth, USB-C

  • Geodetic control, deformation monitoring, photogrammetric base station

FOIF A90 RTK + IMU Tilt

FOIF’s tilt-compensating RTK — measure to 60° without levelling the pole. Revolutionary for dense vegetation, rocky terrain, and awkward corners. Built-in display, hot-swap battery.

Tilt Range

60° — no levelling needed

RTK Accuracy

±10mm H / ±20mm V + 1ppm

Constellations

GPS, GLONASS, BDS, Galileo, QZSS

Battery

8 h hot-swappable

IP Rating

IP67

Display

2.4″ sunlight-readable colour

  • Boundary surveys under vegetation, rocky terrain, confined-space as-built

FOIF A30 RTK GNSS Receiver

Reliable, compact FOIF RTK for growing survey firms in Kenya. Multi-constellation tracking, integrated UHF radio, optional 4G modem. Excellent value with full after-sales support.

RTK Accuracy

±10mm H / ±20mm V + 1ppm

Constellations

GPS L1/L2, GLONASS, BDS

Radio

Internal UHF 400–470 MHz (2 W)

Battery

7+ hours

Op. Temp

-40°C to +65°C

Certifications

CE, FCC, IP67

  • Land surveying, topographic mapping, GIS data collection, construction control

Laser & Distance Measurement

Bosch Professional and Kolida laser levels and measuring tools — trusted on East African construction sites

Bosch GLL 3-80 3-Plane Laser

Professional self-levelling 3-plane laser from Bosch — projects horizontal, vertical, and cross lines simultaneously up to 80 m with detector. IP54 for site use.

Working Range

80 m with receiver

Accuracy

±0.3 mm/m self-levelling

Self-Levelling

±4° automatic

Laser Class

Class 2 red beam

Protection

IP54 splash & dust

Battery

4× AA / 20 hours

  • Interior fit-out, floor levelling, wall tiling, false ceilings, partition walls

Bosch GCL 2-50G Green Cross-Line Laser

Bosch’s brightest cross-line laser — 4× more visible than red in bright outdoor conditions. Self-levelling with pendulum lock, IP65, and Bluetooth remote.

Visible Range

50 m green beam (outdoors)

Accuracy

±0.3 mm/m

Levelling

±4° auto + pendulum lock

Laser 

Green 532 nm, Class 2

Protection

IP65

App

Bosch Levelling Remote (BT)

  • Exterior setting-out, curtain walling, drainage gradients, outdoor levelling

Bosch GLM 50-27C Laser Distance Measurer

Professional 50 m laser measurer with Bluetooth, colour display, and area/volume/Pythagoras functions. Ideal for site measurement, property surveys, and MEP work.

Range

0.05–50 m

Accuracy

±1.5 mm

Functions

Distance, area, volume, Pythagoras

Display

Colour with backlight

Bluetooth

iOS & Android compatible

Protection

IP54

  • Building measurement, property surveys, MEP dimensioning, area take-offs

Kolida PL-1 Pipe & Sewer Laser

Specialist grade-and-alignment laser for underground drainage and sewer installation. Wireless remote control for grade and direction from outside the trench. IP67.

Grade Range

±10% wireless adjustment

Grade Accuracy

±1 mm

Plumb Accuracy

±0.5 mm

Range

Up to 250 m in pipe

Pipe Diameter

200–2000 mm

Protection

IP67 submersible

  • Gravity sewer, culverts, box drains, irrigation channels, underground conduit

Total Stations & Theodolites

Kolida & FOIF electronic total stations — reflectorless, robotic, and optical models for every budget

Manual Electronic Total Stations

Kolida KTS-442R Total Station

Workhorse Kolida TS with 2″ accuracy and 500 m reflectorless EDM. Compact, robust, and reliable for everyday cadastral, construction, and topographic survey in Kenya.

Angle Accuracy

2″ (0.6 mgon)

EDM Accuracy

±(2 mm + 2 ppm)

Reflectorless

500 m (RL mode)

Prism Range

3 000 m single prism

Memory

50 000 pts + USB

Battery

AA cells, 40+ hours

  • Cadastral surveys, topographic mapping, construction stakeout, road surveys

Kolida KTS-460R Total Station

High-precision 1″ Kolida TS with 600 m reflectorless range. Built-in intelligent programs: traverse, stake-out, offset, remote elevation, area. Dual-sided illuminated display.

Angle Accuracy

1″ (0.3 mgon)

EDM Accuracy

±(1.5 mm + 2 ppm)

Reflectorless

600 m

Prism Range

5 000 m

Memory

USB + 50 000 pts internal

Battery

Dual-sided, backlit

  • Engineering surveys, control networks, deformation monitoring, precise stakeout

FOIF OTS635 Electronic Total Station

Reliable FOIF 5″ manual TS with long battery life and IP55 dust/splash protection — ideal for extended field operations across varied East African terrain. Great value.

Angle Accuracy

5″ (1.5 mgon)

EDM Accuracy

±(3 mm + 2 ppm)

Reflectorless

300 m

Prism Range

2 000 m

Protection

IP55

Battery

AA cells, 50+ hours

  • Everyday construction control, earthworks stakeout, boundary surveys

Robotic Total Station

FOIF RTS-860R Robotic Total Station

Professional one-person robotic TS from FOIF with automatic target recognition (ATR) up to 1 500 m and long-range prism tracking. Wireless pole-mounted controller included.

Angle Accuracy

2″

ATR Range

1 500 m auto-tracking

Reflectorless EDM

1 000 m

Prism EDM

5 000 m

Controller

Wireless pole-mounted tablet

Battery

Lithium, 14 hours

  • Large construction sites, one-person stakeout, machine guidance, monitoring

Theodolites

FOIF ET-02 Electronic Theodolite

Digital readout FOIF theodolite for angle measurement, column plumbing, and structural alignment. Simple, reliable, battery-efficient.

Angle Accuracy

2″

Magnification

30× telescope

Compensator

Single-axis automatic

Battery

AA cells, 40+ hours

Weight

4.2 kg with tribrach

Display

LCD digital readout

  • Column plumbing, structural alignment, angle layout, building gridlines

Kolida J2 Optical Theodolite

Classic battery-free optical theodolite. Ideal for teaching, training, backup instrumentation, and remote area surveys where battery supply is uncertain.

Type

Double-reading optical

Accuracy

2″ reading resolution

Magnification

28×

Battery

None — fully optical

Weight

5.0 kg

Use case

Training, backup, remote areas

  • Survey training, teaching programmes, battery-independent backup instrument

Levels

Kolida & FOIF automatic and digital levels — precision vertical control for construction and levelling networks

Automatic / Dumpy Levels

Kolida KL-28 Automatic Level

Professional Kolida auto level — 28× magnification, ±1.0 mm/km accuracy, magnetic-dampened compensator. The workhorse for everyday construction levelling across Kenyan building sites.

Accuracy

±1.0 mm/km double-run

Magnification

28× (aperture 36 mm)

Compensator

Magnetic dampened ±15′

Min Focus

0.9 m

Weight

1.7 kg

Protection

IPX4

  • Cadastral surveys, topographic mapping, construction stakeout, road surveys

FOIF B20 Automatic Level

FOIF B20 precision auto level with 32× magnification and ±0.7 mm/km accuracy — suitable for second-order levelling. Parallel-plate micrometer option for first-order work.

Accuracy

±0.7 mm/km double-run

Magnification

32×

Compensator

Air dampened ±12′

Stadia

100 (standard)

Micrometer

PPM option available

Min focus

1.0 m

  • Control networks, benchmark levelling, precise engineering, deformation monitoring

Digital / Electronic Levels

Kolida KL-2800 Digital Level

Kolida digital level with automatic bar-code staff reading — eliminates human reading errors and dramatically accelerates levelling. 10 000+ readings internal memory, USB output.

Accuracy

±0.5 mm/km double-run

Read Time

<3 sec auto bar-code

Memory

10 000+ readings

Staff

Bar-coded invar or aluminium

Manual Mode

Plain staff readable

Battery

AA, 700+ readings

  • Precise levelling networks, deformation monitoring, bridge control, high-volume levelling

FOIF EL302A Digital Level

FOIF digital level combining bar-code auto-reading with optical manual reading. Cost-effective entry to digital levelling — same field workflow as an auto level, better results.

Accuracy

±1.5 mm/km double-run

Read Time

<4 sec

Memory

2 000 readings

Staff

Bar-code or plain staff

Battery

AA, 400+ readings

Best For

Construction upgrade from auto level

  • Construction levelling, drainage, floor surveys — digital upgrade path

UAV / Drone Systems — DJI Enterprise

Bosch Professional and Kolida laser levels and measuring tools — trusted on East African construction sites

DJI Phantom 4 RTK

The industry-standard professional mapping drone for East Africa. Built-in RTK delivers centimetre-accurate image georeferencing — eliminating or drastically reducing GCP requirements on every survey.

Camera

20 MP, 1″ CMOS, mech. shutter

RTK Accuracy

H ±1 cm + 1 ppm

Flight Time

30 minutes

Coverage

Up to 120 ha / battery set

GNSS

GPS+GLONASS+BDS+Galileo

Wind Resistance

10 m/s (36 km/h)

  • Topographic surveys, construction volumes, corridor mapping, cadastral mapping

DJI Mavic 3 Enterprise (M3E)

Next-generation 45 MP enterprise drone with 4/3 CMOS mechanical-shutter camera and 45-minute flight time. Foldable, portable, omnidirectional obstacle sensing. RTK module attachment available.

Camera

4/3 CMOS, 45 MP, mech. shutter

RTK Option

M3E RTK module, 1 cm accuracy

Flight Time

45 minutes

Range

15 km (O3 Enterprise)

Sensing

Omnidirectional obstacle avoidance

Certification

KCAA commercial class

  • Construction monitoring, surveying, inspection, rapid site assessment

DJI Matrice 350 RTK

DJI’s most powerful enterprise platform — interchangeable payloads support Zenmuse P1 (photogrammetry), L2 (LiDAR), H20T (thermal+zoom). 55-minute flight time, IP55 all-weather.

Payload Capacity

2.7 kg (single), dual payload

Flight Time

55 minutes (no payload)

Protection

IP55 rain & dust

Wind Resistance

15 m/s (54 km/h)

RTK Accuracy

H 1 cm + 1 ppm

Payloads

P1, L2, H20T, H20, X9

  • Infrastructure inspection, LiDAR surveys, thermal imaging, long corridors

DJI Agras T40 Agricultural Drone

DJI’s flagship precision agriculture platform — 40 L spray tank, 40+ ha/hour coverage, built-in multispectral for NDVI mapping. Transform large-scale Kenyan farms with data-driven inputs.

Tank Capacity

40 L spray tank

Flow Rate

16.8 L/min (8 nozzles)

Coverage

40+ ha / hour

Multispectral

Built-in NDVI/GNDVI

Obstacle Avoidance

Active, all directions

Control

App + remote + auto mission

  • Crop spraying, NDVI health mapping, pest control, commercial precision farming

Field Accessories

Prisms, tripods, staffs, controllers, batteries — complete survey accessories for Kolida and FOIF instruments

Kolida Survey Prisms & Reflectors

Full range of Kolida prisms — 360° mini for robotic TS, standard circular, tribrach-mounted sets, and monitoring prisms. Compatible with Kolida, FOIF, and most universal mounts.

Types

360° mini, standard, monitoring

Poles

1.5 m, 2.0 m, telescopic carbon

Compatibility

Kolida, FOIF, universal adaptor

Accuracy

Prism constant per model

  • EDM measurement, stakeout, robotic TS tracking, deformation monitoring

Survey Tripods & Tribrachs

Aluminium and fibreglass tripods with flat and dome heads. Precision tribrachs with and without optical plummet — compatible with all standard 5/8″ threaded instruments.

Materials

Aluminium (standard), fibreglass

Head Types

Flat 5/8″, dome, forced-centring

Tribrach

With/without optical plummet

Compatibility

All 5/8″ survey instruments

  • All instrument setups, control point marking, monitoring stations

Levelling Staffs & Rods

Bar-code (digital), E-pattern, and mm-graduation staffs in aluminium and fibreglass. Available 3 m, 4 m, and 5 m single-piece and telescopic.

Types

Bar-code, E-pattern, mm-graduated

Materials

Aluminium, fibreglass

Lengths

3 m, 4 m, 5 m; telescopic

Accessories

Staff bubble, holder, bag

  • Digital levelling, auto levelling, benchmarking, height transfer

Field Data Controllers & Tablets

Rugged field tablets for Kolida and FOIF TS and GNSS with sunlight-readable displays, MIL-STD-810G drop resistance, and KOLIDA Survey / FOIF Field software pre-installed.

OS

Android (latest)

Display

5″–7″ sunlight-readable touch

Protection

IP67, MIL-STD-810G

Battery

Hot-swap, 10+ hours

Software

KOLIDA / FOIF Field pre-loaded

  • Total station control, GNSS rover, field data collection

Instrument Batteries & Chargers

Original Kolida and FOIF Li-Ion replacement batteries, dual chargers, and 12 V field power packs. Genuine OEM cells for maximum cycle life and full warranty protection.

Compatibility

Kolida and FOIF model-specific

Types

Li-Ion, NiMH as applicable

Chargers

Single, dual, vehicle 12 V

Extended

12 V field battery packs

  • Extended field operations, backup power, uninterrupted surveys

Survey Sundries & Site Tools

Measuring tapes, ranging rods, survey pegs, marking spray, flagging tape, instrument cases, lens kits, and safety gear. Everything for a fully equipped Kenyan field team.

Tapes

20 m – 100 m fibreglass/steel

Ranging Rods

2 m aluminium or fibreglass

Cases

Hard shell & soft, instrument-matched

Consumables

Spray, flagging tape, PPE

  • All field survey operations, site marking, equipment protection