Upward (zenith) shooting laser with laser plummet
Why Crews Choose the QUAD 1000HDU
Zenith Beam to 2,000 Feet
A single upward beam carries plumb control to 609.6 metres — floor after floor, or the full height of a shaft, without re-establishing control on the way up.
Built-In Laser Plummet
A second downward beam acts like a plumb bob so you can set up directly over your reference point. No optical plummet, no tribrach, no string.
±5 Arc Second Accuracy
±1/32 inch per 100 feet (.793 mm per 30.48 m). The downward plummet beam holds 1 arc minute at 15 feet (4.57 m).
Temperature Compensated
Electronic servo self-levelling senses ambient temperature change while running and continually recalibrates, so the reading you take at dawn matches the one you take at noon.
Sealed Against the Job
Purged and dry-nitrogen filled to IP67 inside a heavy ¼-inch aluminium housing with a hard-coat anodised finish. Dust and water are not a factor.
One Button, Ten Seconds
Press power and the unit self-levels in under ten seconds. The beam blinks while levelling and goes steady when it is in spec. Battery and level status show on a backlit LCD.
What’s In The Box
LaserLine P/N 4003-0000-U
LaserLine P/N 4003-0002
LaserLine P/N 4001-0010
LaserLine P/N 2020-0203
LaserLine P/N 3000-0182
The 1140 Series power converter is not included — see Accessories below if you need to run from AC.
On The Job
Specifications
| Beam direction | Zenith — vertically upward, plus a short-range downward plummet beam |
| Range | Upward (zenith) to 2,000 ft (609.6 m) |
| Plumb beam accuracy | ±5 arc seconds (±1/32 in per 100 ft / .793 mm per 30.48 m) |
| Plummet (down) beam accuracy | 1 arc minute at 15 ft (4.57 m) |
| Self-levelling | Electronic servo with variable temperature compensation |
| Self-levelling time | Normally under 10 seconds |
| Laser spot size at exit | .500 in (12.7 mm) |
| Laser power | 5.0 mW |
| Laser class | Class 3R — USA EN/IEC 60824-1 2007, International IEC 60825-1 2014; OSHA compliant |
| Power source | 12 VDC, or 110–220 VAC with the optional 1140 converter |
| Mount thread | 5/8-11 female for tripod; 360° rotational quick mount to the 4003-0002 trivet |
| Operating temperature | 0 to +122 °F (−18 to +50 °C) |
| Storage temperature | −4 to +158 °F (−20 to +70 °C) |
| Dimensions | 8 in H (20.32 cm); 6½ × 6½ in at base (16.50 × 16.50 cm); 9¾ in across handles (23.6 cm) |
| Weight | 10.5 lb (4.77 kg) |
| Sealing | IP67 — purged and dry-nitrogen filled, ¼-inch aluminium housing with hard-coat anodised finish |
| Warranty | 24 months, parts and labour |
Atmospheric conditions can reduce range and degrade spot size and quality. Specifications from the LaserLine QUAD 1000HDU operator’s manual, Rev 7.15.21.
QUAD 1000HDU vs QUAD 1000HDD — Which One Do You Need?
| QUAD 1000HDU — UP | QUAD 1000HDD — DOWN | |
|---|---|---|
| Main beam | Zenith — straight up | Nadir — straight down |
| Range | 2,000 ft (609.6 m) up | 2,000 ft (609.6 m) down |
| Second beam | Downward plummet, 1 arc min at 15 ft | None |
| Getting over the point | Use the built-in plummet beam | Mount a survey prism on the 5/8-11 top thread and traverse with a total station |
| 5/8-11 female thread | For a tripod | On top, for a survey prism |
| Typical use | Shooting up a shaft, high-rise plumb control, zenith transfer | Shooting down a shaft from a platform over an opening |
| Accuracy, housing, case, cord | Identical — ±5 arc seconds, IP67, 10.5 lb, same trivet, targets, cord and case | |
Both models are the same instrument in the same housing. The only question is which way your control has to travel. Need the downward version? See the QUAD 1000HDD — DOWN.
Accessories & Spare Parts
1140 Series Power Converter
Runs the laser at 13 VDC from 90–260 VAC. Senses the supply voltage automatically. The answer when there is shore power at the collar and you would rather not run off a battery all shift.
Call for pricing — 1-877-866-5721Mounting Trivet Plate
Spare or second ½-inch aluminium three-point levelling base with the quick-disconnect rotational mount. Handy when you want a trivet left tied down at each setup.
Call for pricing — 1-877-866-5721Alignment Targets (2)
Translucent bulls-eye targets, 5¾ × 3¾ in. One has a ¼-inch pass-through hole so the beam carries on to the next target. Consumable — most crews keep spares.
Call for pricing — 1-877-866-5721Power Cord
Replacement 20 ft (6.09 m) lead, 3-pin military-grade connector with positive and negative alligator clips.
Call for pricing — 1-877-866-5721Carrying Case
Replacement double-wall blow-moulded case with custom-fit foam inserts and two locking latches.
Call for pricing — 1-877-866-5721Accessories ship direct from LaserLine, the same as the laser. Call and we will quote and schedule it on the same order.
Questions Crews Actually Ask
What powers it on a shaft job — do I need batteries?
What is the difference between the HDU and the HDD?
How do I get the instrument directly over my reference point?
How accurate is it in real terms?
Will temperature swing in a shaft throw the reading off?
Is it safe to look at? What laser class is it?
Can it get wet and dusty?
What does the platform need to look like?
Manuals & Downloads
PDFs provided by LaserLine Mfg., Inc. Need printed copies with the job? Call 1-877-866-5721.
Questions? Our experts are ready.
Authorized LaserLine Mfg. Dealer — vertical control lasers shipped direct to your site.
