Drivers slow down when the road tells them their speed.
Our radar speed indicator displays measure every approaching vehicle with 24.15 GHz K-Band Doppler radar and show the driver their own speed on an ultra-bright LED sign readable from over 300 metres, day or night. Add an over-speed buzzer, an ANPR enforcement camera or on-device logging, and run it off mains or off-grid solar.
Two digit families. One radar.
The radar sensor is identical on every model in the range — a CAIPL/R/200 Doppler head with 200 m detection and ±1 km/h accuracy. What changes between the two families is the sign: how big the digits are, and therefore how fast a speed it can show.
2-Digit2DR
12-inch digits in a compact casing. Displays up to 99 km/h, which covers urban roads, campus gates, school zones and internal plant roads.
3-Digit3DR
16-inch digits, and the full 1–240 km/h range the radar can measure. Built for highways, expressways, arterial roads and haul roads — one unit per lane.
Four choices, twenty-four models.
Every model number in this range is the answer to the same four questions — and the part number spells all four back out, so you can read a unit's specification straight off the label.
Digit family
2-Digit 2DR for up to 99 km/h, or 3-Digit 3DR for the full 1–240 km/h range.
Power source
230 V AC mains 230 where power is available, or off-grid S solar with panel, MPPT controller and LiFePO₄ battery.
Accessories
An over-speed buzzer B, an ANPR enforcement camera /ANPR, both, or neither. They are independent.
Data logging
On-device time-stamped speed records add D. Not offered on ANPR builds — the LPU already logs every violation.
2DR or 3DR230 mains or S solarR, B, RD or BDWhat the accessory code meansR · RD · B · BD
| Code | Buzzer | On-device logging |
|---|---|---|
R | No | No |
RD | No | Yes |
B | Yes | No |
BD | Yes | Yes |
All 24 radar speed indicator models
Two digit families × two power sources × six accessory and logging combinations. Every one is a manufacturable unit with its own specification and Bill of Quantities.
See all 24 model numbers full table — family, power, accessories, logging, IP
| # | Model number | Digits | Power | Accessories | Data logging | IP |
|---|---|---|---|---|---|---|
| 1 | CAIPL/2DR/230/R/1F1F |
2-Digit (12") | 230 V AC mains | Display only | — | IP65 |
| 2 | CAIPL/2DR/230/RD/1F1F |
2-Digit (12") | 230 V AC mains | Display + on-device logging | On-device | IP65 |
| 3 | CAIPL/2DR/230/B/1F1F |
2-Digit (12") | 230 V AC mains | Buzzer | — | IP65 |
| 4 | CAIPL/2DR/230/BD/1F1F |
2-Digit (12") | 230 V AC mains | Buzzer + on-device logging | On-device | IP65 |
| 5 | CAIPL/2DR/230/R/1F1F/ANPR |
2-Digit (12") | 230 V AC mains | ANPR camera | LPU + cloud | IP66 |
| 6 | CAIPL/2DR/230/B/1F1F/ANPR |
2-Digit (12") | 230 V AC mains | Buzzer + ANPR camera | LPU + cloud | IP66 |
| 7 | CAIPL/2DR/S/R/1F1F |
2-Digit (12") | Off-grid solar | Display only | — | IP65 |
| 8 | CAIPL/2DR/S/RD/1F1F |
2-Digit (12") | Off-grid solar | Display + on-device logging | On-device | IP65 |
| 9 | CAIPL/2DR/S/B/1F1F |
2-Digit (12") | Off-grid solar | Buzzer | — | IP65 |
| 10 | CAIPL/2DR/S/BD/1F1F |
2-Digit (12") | Off-grid solar | Buzzer + on-device logging | On-device | IP65 |
| 11 | CAIPL/2DR/S/R/1F1F/ANPR |
2-Digit (12") | Off-grid solar | ANPR camera | LPU + cloud | IP66 |
| 12 | CAIPL/2DR/S/B/1F1F/ANPR |
2-Digit (12") | Off-grid solar | Buzzer + ANPR camera | LPU + cloud | IP66 |
| 13 | CAIPL/3DR/230/R/1.5F2F |
3-Digit (16") | 230 V AC mains | Display only | — | IP65/66 |
| 14 | CAIPL/3DR/230/RD/1.5F2F |
3-Digit (16") | 230 V AC mains | Display + on-device logging | On-device | IP65/66 |
| 15 | CAIPL/3DR/230/B/1.5F2F |
3-Digit (16") | 230 V AC mains | Buzzer | — | IP65/66 |
| 16 | CAIPL/3DR/230/BD/1.5F2F |
3-Digit (16") | 230 V AC mains | Buzzer + on-device logging | On-device | IP65/66 |
| 17 | CAIPL/3DR/230/R/1.5F2F/ANPR |
3-Digit (16") | 230 V AC mains | ANPR camera | LPU + cloud | IP66 |
| 18 | CAIPL/3DR/230/B/1.5F2F/ANPR |
3-Digit (16") | 230 V AC mains | Buzzer + ANPR camera | LPU + cloud | IP66 |
| 19 | CAIPL/3DR/S/R/1.5F2F |
3-Digit (16") | Off-grid solar | Display only | — | IP65/66 |
| 20 | CAIPL/3DR/S/RD/1.5F2F |
3-Digit (16") | Off-grid solar | Display + on-device logging | On-device | IP65/66 |
| 21 | CAIPL/3DR/S/B/1.5F2F |
3-Digit (16") | Off-grid solar | Buzzer | — | IP65/66 |
| 22 | CAIPL/3DR/S/BD/1.5F2F |
3-Digit (16") | Off-grid solar | Buzzer + on-device logging | On-device | IP65/66 |
| 23 | CAIPL/3DR/S/R/1.5F2F/ANPR |
3-Digit (16") | Off-grid solar | ANPR camera | LPU + cloud | IP66 |
| 24 | CAIPL/3DR/S/B/1.5F2F/ANPR |
3-Digit (16") | Off-grid solar | Buzzer + ANPR camera | LPU + cloud | IP66 |
There are 24 models and not 32 because on-device logging D is not offered on ANPR
builds — the Local Processing Unit already records the plate, speed and timestamp of every
violation and syncs them to the cloud dashboard, so a separate logger would be redundant.
Use the model builder to get the full
specification and Bill of Quantities for any of these, or to have it sent to you on WhatsApp.
See it working
Product walkthroughs and real installations. View the full playlist ↗
Radar Products Introduction
How the range works, end to end.
Major Installations So Far
Deployments across highways, facilities and communities.
Speed Detection Demo
Green through the limit, red past the threshold.
Applications
Factory and plant roads
Internal roads where forklifts, tankers and staff vehicles share space. A 2-Digit unit at the gate sets the tone for the whole site.
Highways and expressways
3-Digit units display the full 1–240 km/h range, one per lane, with solar power where there is no grid connection at the median.
School and hospital zones
Speed feedback plus an over-speed buzzer, which makes the warning audible to pedestrians as well as to the driver.
Township and gated communities
Solar units on internal roads, no trenching or cabling required, with on-device logging for a record of how traffic actually behaves.
Enforcement corridors
ANPR builds capture plate, speed and timestamp for every violation and push them to a cloud dashboard for follow-up.
Mining and haul roads
IP65/66 protection, pole mounting and solar operation for remote haul routes where over-speeding carries the highest consequence.
Configure your unit and get the part number
Answer four questions and the builder gives you the exact model number, full specification and Bill of Quantities — and can send the whole thing to your WhatsApp.