Horizontal and vertical spirit level vials and a laser pointer.
eBay
New 32W Twinkle RGB 4 level-speed Smart APP Control LED Fiber Optic Light Engine for Starry Sky Effect Ceiling
Aliexpress UK
Boasting uniform color, delicate texture, and adjustable brightness & line thickness, the laser lines arehighly visible both indoors and outdoors. With a maximum laser projection distance of131.23FT (40M) and an impressive accuracy of±1.5mm/7M, the 4D 16-line plane layout provides full coverage of horizontal and vertical laser lines, drastically boosting the precision and efficiency of all your marking and leveling tasks.
eBay
Two Transmitter, Two Receiver, Dual Antenna UWB Indoor Centimeter Level High-precision Positioning Module BU04 Bidirectional Ran
Aliexpress UK
High brightness green, indoor and outdoor clearly.Far projection distance, high laser height, clear lines,visible in the sun. Auto leveling range: ±4°. Laser Type: Laser class 2: 510-530nm. Number of laser lines: 16 lines/4D.
eBay
High-Precision Gnss Receiver with Compass, Built-In Zed-F9P Module, Centimeter-Level Positioning
Aliexpress UK
Achieve professional-grade accuracy with theXUNTOP 16 line green laser level. 16-line green laser with 4 x 360° full coverage. Bright green laser for superior visibility. 1 × 16 Line Laser Level. Class 2 laser with safe & precise output.
eBay
ZK-QCC Qualcomm QCC5125 QCC3034 Bluetooth 5.1 lossless decoding board APTX LDAC fever level
Aliexpress UK
Flooring installation. Laser Type: Electronic Infrared. Type: 90° Laser Line Level. Compact & Portable Design. Size: Compact portable design. 1 × 90° Laser Level Tool. Durable Construction. Easy One-Button Operation.
eBay
11-in-1 vertical multi-functional socket tower, 8AC+3USB/ Overload protection/three-level night light / 2-meter extension cable
Aliexpress UK
Dekton 3 in 1 Laser Level Brand New (ex market stock) Priced to Clear: £5 each 7 available
eBay
HD-SDI Fiber Converter 1080@30Hz SDI Over Fiber Optic Extender Broadcast Level Video Optical Transceiver
Aliexpress UK
Its compact design makes it easy to use and transport, and its durable construction ensures that it will withstand even the toughest of working conditions.
eBay
High Quality FTTB CATV Node AGC Optical Receiver 5~14V Sola Panie With EQ ATT 2 RF Output level 96dBuV CATV Series Equipment
Aliexpress UK
✔16-Line Laser for Complete Room Layouts： Project 4×360° laser lines to cover every wall, floor and ceiling in a room simultaneously. ✔ Multiple Mounting Options & 360° Rotation： Includes magnetic bracket, tripod and lifting base for flexible positioning.
eBay
eletechsup PNP Output RS485 IO module 8-32 DI-DO Rtu Remote IO Module DC 12-24V 300MA DMOS PNP High Level Output
Aliexpress UK