{"id":1156,"date":"2026-05-26T11:45:48","date_gmt":"2026-05-26T03:45:48","guid":{"rendered":"https:\/\/stalaser.com\/?post_type=product&p=1156"},"modified":"2026-06-11T17:09:43","modified_gmt":"2026-06-11T09:09:43","slug":"120m-4khz-laser-rangefinder-product-manual","status":"publish","type":"product","link":"https:\/\/stalaser.com\/zh\/product\/120m-4khz-laser-rangefinder-product-manual\/","title":{"rendered":"120m 4KHz Laser Rangefinder Product Manual"},"content":{"rendered":"

Technical Specifications:<\/b><\/strong><\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Model<\/td>\nSTA-LRK400X<\/td>\n<\/tr>\n
Ranging accuracy<\/td>\n\u00b10.1m<\/td>\n<\/tr>\n
Module size<\/td>\n\u226432*19*16mm<\/td>\n<\/tr>\n
range capability<\/td>\nTypical target<\/td>\n\u2265300m, target reflectance 90%<\/td>\n<\/tr>\n
Building survey<\/td>\n\u2265120m<\/td>\n<\/tr>\n
Measure natural target<\/td>\n\u226580m<\/td>\n<\/tr>\n
Recent ranging<\/td>\n0.1m<\/td>\n<\/tr>\n
Range frequency<\/td>\n4KHz<\/td>\n<\/tr>\n
Resolution ratio<\/td>\n\u00b10.1m<\/td>\n<\/tr>\n
Working current<\/td>\n\u2264200mA<\/td>\n<\/tr>\n
Standby current<\/td>\n\u226433mA<\/td>\n<\/tr>\n
Standby power consumption<\/td>\n\u22640.2W<\/td>\n<\/tr>\n
Power consumption<\/td>\n\u22640.6W<\/td>\n<\/tr>\n
CI<\/td>\nTTL<\/td>\n<\/tr>\n
Working temperature<\/td>\n-10\u2103~+55\u2103<\/td>\n<\/tr>\n
Storage temperature<\/td>\n-20\u2103~+65\u2103<\/td>\n<\/tr>\n
Input voltage<\/td>\n5V<\/td>\n<\/tr>\n
Laser wave length<\/td>\n905nm<\/td>\n<\/tr>\n
Beam divergence angle<\/td>\n8 mrad<\/td>\n<\/tr>\n
Power<\/td>\n\u2264 1 mW safe for human eye<\/td>\n<\/tr>\n
Range finding method<\/td>\nimpulse<\/td>\n<\/tr>\n
Weight<\/td>\n7.7\u00b10.2g<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
The pin configuration of the STA-<\/b><\/strong>LRK400x<\/b><\/strong>\u00a0module is illustrated in the diagram below.<\/b><\/strong><\/td>\n<\/tr>\n
\"\"<\/td>\n<\/tr>\n
Pin number<\/td>\nfunctional description<\/td>\n<\/tr>\n
1<\/td>\nVCC<\/td>\n<\/tr>\n
2<\/td>\nTXD<\/td>\n<\/tr>\n
3<\/td>\nRXD<\/td>\n<\/tr>\n
4<\/td>\nGND<\/td>\n<\/tr>\n
P<\/b><\/strong>our \uff1a<\/b><\/strong><\/p>\n

1. The communication interface of this module is TTL.<\/b><\/strong><\/p>\n

\u00a02.UART configuration: 1 start bit, 8 data bits, 1 stop bit, no parity check;<\/b><\/strong><\/td>\n<\/tr>\n

DC CHARACTERISTICS<\/b><\/strong><\/td>\n<\/tr>\n
parameter<\/td>\ntest condition<\/td>\nleast value<\/td>\ncrest value<\/td>\nunit<\/td>\n<\/tr>\n
Operating voltage (Vin)<\/td>\nT=25\u00b0C<\/td>\n2.5<\/td>\n5.0<\/td>\nV<\/td>\n<\/tr>\n
working current \uff08I\uff09<\/td>\nstand by<\/p>\n

(T=25\u00b0C, Vin=3.0V)<\/td>\n

–<\/td>\n50.0<\/td>\nmA<\/td>\n<\/tr>\n
range finding condition<\/p>\n

(T=25\u00b0C, Vin=3.0V)<\/td>\n

–<\/td>\n180.0<\/td>\nmA<\/td>\n<\/tr>\n<\/tbody>\n<\/table>","protected":false},"excerpt":{"rendered":"
\n
\n

Range performance maximum<\/p>\n

120 m<\/p>\n<\/div>\n

\n

Typical accuracy<\/p>\n

\u00b10.1 m<\/p>\n<\/div>\n

\n

Range frequency<\/p>\n

4 KHz<\/p>\n<\/div>\n<\/div>","protected":false},"featured_media":1157,"comment_status":"open","ping_status":"closed","template":"","meta":[],"product_brand":[],"product_cat":[27],"product_tag":[],"class_list":["post-1156","product","type-product","status-publish","has-post-thumbnail","product_cat-905nm-10m-3km-lrf-module","first","instock","shipping-taxable","product-type-simple"],"acf":[],"_links":{"self":[{"href":"https:\/\/stalaser.com\/zh\/wp-json\/wp\/v2\/product\/1156","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/stalaser.com\/zh\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/stalaser.com\/zh\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/stalaser.com\/zh\/wp-json\/wp\/v2\/comments?post=1156"}],"version-history":[{"count":3,"href":"https:\/\/stalaser.com\/zh\/wp-json\/wp\/v2\/product\/1156\/revisions"}],"predecessor-version":[{"id":1514,"href":"https:\/\/stalaser.com\/zh\/wp-json\/wp\/v2\/product\/1156\/revisions\/1514"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/stalaser.com\/zh\/wp-json\/wp\/v2\/media\/1157"}],"wp:attachment":[{"href":"https:\/\/stalaser.com\/zh\/wp-json\/wp\/v2\/media?parent=1156"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/stalaser.com\/zh\/wp-json\/wp\/v2\/product_brand?post=1156"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/stalaser.com\/zh\/wp-json\/wp\/v2\/product_cat?post=1156"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/stalaser.com\/zh\/wp-json\/wp\/v2\/product_tag?post=1156"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}